MICROCHIP dsPIC33EP32MC204 Drone Propeller Reference Design

Selelekela

FEELAVIEW
Moralo oa litšupiso ke sethala sa tlhahlobo se theko e tlase se lebisitsoeng bakeng sa lits'ebetso tsa quadcopter/drone tse nang le li-propeller tse tsamaisoang ke mekhahlelo e meraro Permanent Magnet Synchronous kapa Brushless motors. Moralo ona o thehiloe ho Microchip dsPIC33EP32MC204 DSC, sesebelisoa sa taolo ea enjene.

Setšoantšo sa 1-1: dsPIC33EP32MC204 Moralo oa litšupiso tsa taolo ea makoloi a Drone 

LIKAROLOANA

Likarolo tsa bohlokoa tsa Reference Design ke tse latelang:

• Matla a Taolo ea Likoloi ea Mehato e meraro Stage
• Phatha maikutlo a hajoale ka mokhoa oa shunt bakeng sa ts'ebetso e phahameng
• Mokhahlelo oa voltage maikutlo a ho kenya ts'ebetsong taolo ea trapezoidal e se nang sensor kapa ho qala ho fofa
• DC Bese voltage maikutlo bakeng sa over-voltage tshireletso
• Sehlooho sa ICSP bakeng sa In-Circuit Serial Programming se sebelisa Microchip Programmer/Debugger
• CAN Puisano Hlooho

TIISETSA SEAKI

 

Likarolo tse fapaneng tsa Hardware tsa Reference Design li bonts'itsoe ho Sets'oants'o sa 1-3 mme li akaretsoa ho Lethathamo la 1-1.

TŠEBELETSO EA 1-3: LIKAROLO TSA SEBETSA

Lethathamo la 1-1 Likarolo tsa Hardware
Karolo	Karolo ea Hardware
1	Inverter ea likarolo tse tharo tsa motlakase
2	dsPIC33EP32MC204 le potoloho e amanang le eona
3	Mokhanni oa MCP8026 MOSFET
4	KA SEBELE
5	Li-Resistors tsa Hona Joale
6	Sehloho sa Sebui sa Seriba sa Puisano
7	Sehlooho sa ICSP™

8	Sehlooho sa Sehokelo sa Mosebelisi
9	DE2 MOSFET Driver Serial Interface Header

Tlhaloso ea Sebopeho sa Boto

LIEKETSENG
Khaolo ena e fana ka tlhaloso e qaqileng haholoanyane ea li-interfaces tsa ho kenya le ho hlahisa tsa Drone motor controller Reference Design. Ho akarelitsoe lihlooho tse latelang:

• Lihokelo tsa Boto
• Pin mesebetsi ea dsPIC DSC
• Pina mesebetsi ea Mokhanni oa MOSFET

LIKHOKANE LEBOTO
Karolo ena e akaretsa lihokelo tsa Smart Drone Controller Board. Li bonts'itsoe ho Setšoantšo sa 2-1 mme li akaretsoa ho Lethathamo la 2-1.

• Ho fana ka matla a ho kenya letsoho ho Smart Drone Controller Board.
• Ho fana ka liphetho tsa inverter ho enjene.
• Ho nolofaletsa mosebelisi ho hlophisa/ho lokisa sesebelisoa sa dsPIC33EP32MC204.
• Ho hokahana le marang-rang a CAN.
• Ho theha puisano ea serial le PC e amohelang.
• Ho fana ka lets'oao la referense ea lebelo.

Setšoantšo sa 2-1: LI-CONNECTORS - Moqapi oa Reference Motor Controller oa Drone 

TAEBELE EA 2-1 LIKHOKONGA 

Moqapi oa Sehokelo	No ea Pins	Boemo	Tlhaloso
ISP1	5	E tletse	Sehlooho sa ICSP™ - Interfacing Programmer/Debugger ho dsPIC® DSC
P5	6	E tletse	Sehlooho sa CAN Communication Interface
P3	2	E tletse	Sehloho sa Sebui sa Seriba sa Puisano
P2	2	E tletse	Reference Speed ​​​​PWM / Analog Interface Header
MOHATO A, KAROLO YA B, KAROLO C	3	Ha ho na Baahi	Liphetho tsa inverter ea Mehato e meraro
VDC, GND	2	Ha ho na Baahi	Kenya sehokelo sa phepelo ea DC (VDC: Positive terminal, GND: Negative terminal)
P1	2	E tletse	DE2 MOSFET Driver Serial Interface Header. Ka kopo, sheba ho Lethathamo la lintlha tsa MCP8025A/6 bakeng sa lintlha tsa hardware le liprothokholo tsa puisano

Sehlooho sa ICSP™ bakeng sa Sehokelo sa Lenaneo/Debugger (ISP1)
Hlooho ea li-pin tse 6 ISP1 e ka hokahana le moetsi oa lenaneo, mohlalaample, PICkit 4, molemong oa ho etsa mananeo le ho lokisa liphoso. Sena ha se na baahi. Hlahisa ha ho hlokahala ka Nomoro ea Karolo 68016-106HLF kapa tse ling tse tšoanang. Lintlha tsa phini li fanoe ho Lethathamo la 2-2.

TAFOLE 2-2: TLHALOSO EA PIN – HEADER ISP1 

Pin #	Lebitso la Letshwao	Tlhaloso ea Pin
1	MCLR	Device Master Clear (MCLR)
2	+3.3V	Phepelo voltage
3	GND	Fatše
4	PGD	Sesebelisoa sa Lenaneo la Boitsebiso ba Sesebelisoa (PGD)
5	PGC	Sesebediswa Programming Clock Line (PGC)

Sehlooho sa CAN Communication Interface(P5)
Sehlooho sena sa li-pin tse 6 se ka sebelisoa ho hokahana le marang-rang a CAN. Lintlha tsa phini li fanoe ho Lethathamo la 2-3.

TABLE EA 2-3: TLHALOSO EA PIN – HEADER P5 

Pin #	Lebitso la Letshwao	Tlhaloso ea Pin
1	3.3 V	E fana ka 3.3 volts ho module ea kantle (10 ma. Max)
2	EMA HAUFI	Input Signal ho beha selaolo se bohlale boemong ba standby
3	GND	Fatše
4	CANTX	CAN transmitter (3.3 V)
5	KANRX	CAN receiver (3.3 V)
6	DGND	E hokahane le sebaka sa dijithale botong

Speed ​​​​Reference UI Header (P2)
2-pin Header P2 e sebelisetsoa ho fana ka tšupiso ea Lebelo ho firmware ka mekhoa e 'meli. Lithakhisa li sirelelitsoe ka nako e khuts'oane. Lintlha tsa hlooho ea P2 li fanoe ho Lethathamo la 2-2.

TABLE EA 2-4: TLHALOSO EA PIN – HEADER P2 

Pin #	Lebitso la Letshwao	Tlhaloso ea Pin
1	INPUT_FMU_PWM	Letšoao la dijithale - PWM 50Hz, 3-5Volts, 4-85%
2	LEBELO LEBELO	Letšoao la analog - 0 ho 3.3 V

Sehlooho sa Serial Communications (P3)
2-pin Header P3 e ka sebelisoa bakeng sa ho fihlella lithakhisa tse sa sebelisoeng tsa microcontroller bakeng sa katoloso ea ts'ebetso kapa ho lokisa liphoso, 'me lintlha tsa phini tsa hlooho ea J3 li fanoe ho Lethathamo la 2-4.

TABLE EA 2-4: TLHALOSO EA PIN – HEADER P3 

Pin #	Lebitso la Letshwao	Tlhaloso ea Pin
1	RXL	UART - Moamoheli
2	TXL	UART - Transmitter

DE2 MOSFET Driver Serial Interface Header (P1)
2-pin Header P1 e ka sebelisoa bakeng sa ho fihlella lithakhisa tse sa sebelisoeng tsa microcontroller bakeng sa katoloso ea ts'ebetso kapa ho lokisa liphoso, 'me lintlha tsa phini tsa hlooho ea J3 li fanoe ho Lethathamo la 2-4.

TABLE EA 2-4: TLHALOSO EA PIN – HEADER P1

Pin #	Lebitso la Letshwao	Tlhaloso ea Pin
1	DE2	UART - DE2 Letšoao
2	GND	Board Ground e sebelisetsoang ho hokahanya kantle

Sehokahanyi sa Inverter Output
Moralo oa litšupiso o ka khanna koloi ea mekhahlelo e meraro ea PMSM/BLDC. Likabelo tsa phini tsa sehokelo li bonts'oa ho Lethathamo la 2-6. Tatelano e nepahetseng ya karolo ya enjene e tlameha ho hokelwa ho thibela ho kgutlela morao.

TAFOLE 2-6: TLHALOSO EA PIN 

Pin #	Tlhaloso ea Pin
MOHATO A	Phase ea 1 ea tlhahiso ea inverter
MOHATO B	Phase ea 2 ea tlhahiso ea inverter
KAROLO C	Phase ea 3 ea tlhahiso ea inverter

Input DC Connector (VDC le GND)
Boto e etselitsoe ho sebetsa ho DC voltage fapaneng ea 11V ho 14V, e ka tsamaisoang ka lihokelo tsa VDC le GND. Lintlha tsa sehokelo li fanoe ho Lethathamo la 2-7.

TAFOLE 2-7: TLHALOSO EA PIN 

Pin #	Tlhaloso ea Pin
VDC	DC Input phepelo e ntle
GND	DC Input supply e mpe

SEBELISA MOSEBETSI
Ho na le mekhoa e 'meli ea ho hokahanya le firmware ea Smart Drone Controller ho fana ka tlhahiso ea litšupiso tsa lebelo.

• Kenyeletso ea PWM (Letšoao la Digital - PWM 50Hz, 3-5Volts, 4-55% potoloho ea mosebetsi)
• Analoge voltage (0 - 3.3 Volts)

Sehokelo se etsoa ka likhokahano ho sehokelo sa P2. Sheba Lethathamo la 2-4 ho fumana lintlha. Moralo ona oa litšupiso o na le module ea taolo ea PWM ea kantle e fanang ka referense ea lebelo. Taolo ea kantle e na le potentiometer ea eona le pontšo ea likarolo tse 7 tsa LED. Potentiometer e ka sebelisoa ho fetola lebelo le lakatsehang ka ho fetola potoloho ea mosebetsi oa PWM e ka fetohang ho tloha ho 4% ho ea ho 55%. (50Hz 4-6Volts) ka mekhahlelo e 3. Sheba Karolo ea 3.3 bakeng sa lintlha tse ling.

TŠEBETSO PIN EA dsPIC DSC
Sesebelisoa sa onboard dsPIC33EP32MC204 se laola likarolo tse fapaneng tsa moralo oa litšupiso ka li-peripherals le bokhoni ba CPU. Mesebetsi ea phini ea dsPIC DSC e hlophisoa ho latela ts'ebetso ea eona mme e hlahisoa ho Lethathamo la 2-9.

LETHABO LA 2-9: dsPIC33EP32MC204 MESEBETSI PIN

Letshwao	dsPIC DSC Pin Nomoro	dsPIC DSC Pin Mosebetsi	dsPIC DSC Peripheral	Litlhaloso
dsPIC DSC Configuration – Phepelo, Reset, Clock, le Programming
V33	28,40	VDD	Phepelo	+3.3V Phepelo ea Digital ho dsPIC DSC
DGND	6,29,39	VSS		Digital Ground
AV33	17	AVDD		+3.3V phepelo ea Analog ho dsPIC DSC
TS'OANANG	16	AVSS		Sebaka sa Analog
OSCI	30	OSCI/CLKI/RA2	Oscillator ea kantle	Ha ho khokahano ea kantle.
RST	18	MCLR	Seta bocha	E hokela ho Sehlooho sa ICSP (ISP1)
ISPDATA	41	PGED2/ASDA2/RP37/RB5	In-Circuit Serial Programming (ICSP™) kapa Debugger ea potoloho	E hokela ho Sehlooho sa ICSP (ISP1)
ISPCLK	42	PGEC2/ASCL2/RP38/RB6
IBUS	18	DACOUT/AN3/CMP1C/RA3	High Speed ​​Analog Comparator 1(CMP1) le DAC1	Amplified Bus current e ntse e hloekisoa pele e hokela ho kenyelletso e ntle ea CMP1 bakeng sa ho lemoha ho feta hona joale. Boemo ba hona joale bo behiloe ka DAC1. Sehlahisoa se bapisang se fumaneha ka hare e le tlhahiso e fosahetseng ea lijenereithara tsa PWM ho koala li-PWM ntle le ho kenella ha CPU.
Moqtage Maikutlo
ADBUS	23	PGEC1/AN4/C1IN1+/RPI34/R B2	E arolelanoa ADC Core	DC Bese voltagle maikutlo.
Debug Interface (P3)
RXL	2	RP54/RC6	Mosebetsi o ka khutlisang oa I/O le UART	Lipontšo tsena li hokahane le Header P3 ho hokahanya le puisano ea serial ea UART.
TXL	1	TMS/ASDA1/RP41/RB9
CAN Interface (P5)
CANTX	3	RP55/RC7	CAN moamoheli, transmitter le standby	Lipontšo tsena li hokahane le Header P5
KANRX	4	RP56/RC8
EMA HAUFI	5	RP57/RC9
Litholoana tsa PWM
PWM3H	8	RP42/PWM3H/RB10	PWM Module e hlahisoang.	Sheba database bakeng sa lintlha tse ling.
PWM3L	9	RP43/PWM3L/RB11
PWM2H	10	RPI144/PWM2H/RB12
PWM2L	11	RPI45/PWM2L/CTPLS/RB13
PWM1H	14	RPI46/PWM1H/T3CK/RB14
PWM1L	15	RPI47/PWM1L/T5CK/RB15
Sepheo se akaretsang I/O

KE_OUT2	22	PGEC3/VREF+/AN3/RPI33/CT ED1/RB1	E arolelanoa ADC Core
MotorGateDr_ CE	31	OSC2/CLKO/RA3	I/O Port	E nolofalletsa kapa e tima mokhanni oa MOSFET.
MotorGateDrv _ILIMIT_OUT	36	SCK1/RP151/RC3	I/O Port	Tšireletso e fetelletseng.
DE2	33	FLT32/SCL2/RP36/RB4	UART1	Boema-kepe bo ka lokisoang bo hlophiselitsoeng ho UART1 TX
DE2 RX1	32	SDA2/RPI24/RA8	UART1	Boema-kepe bo ka lokiselitsoeng bocha bo hlophiselitsoe UART1 RX
Scaled Phase voltaglitekanyo
PHC	21	PGED3/VREF-/ AN2/RPI132/CTED2/RB0	E arolelanoa ADC Core	Back emf zero cross sensing PHASE C
PHB	20	AN1/C1IN1+/RA1	E arolelanoa ADC Core	Back emf zero cross sensing PHASE B
PHA, Maikutlo	19	AN0/OA2OUT/RA0	E arolelanoa ADC Core	Back emf zero cross sensing PHASE A
Ha ho na lihokelo
–	35,12,37,38
–	43,44,24
–	30,13,27

MESEBETSI PIN EA MOQEBI WA MOSFET

Letshwao	EA-8026 Pin Nomoro	EA-8026 Pin Mosebetsi	Sebaka sa tšebetso sa MCP8026	Litlhaloso
Likamano tsa matla le fatše
VCC_LI_PO WER	38,39	VDD	jenereithara ea leeme	Li-Volts tsa 11-14
PGND	36,35,24,20 ,19,7	PGND		Sebaka sa motlakase
V12	34	+12V		12 Volt e hlahisoang
V5	41	+5V		5 Volt e hlahisoang
LX	37	LX		Buck regulator switjha node bakeng sa 3.3V tsoa
FB	40	FB		Buck regulator feedback node for 3.3V out
Tlhahiso ea PWM
PWM3H	46	PWM3H	Mokhoa oa taolo ea heke	Sheba lethathamong la lisebelisoa bakeng sa lintlha tse ling
PWM3L	45	PWM3L
PWM2H	48	PWM2H
PWM2L	47	PWM2L
PWM1H	2	PWM1H
PWM1L	1	PWM1L
Lithako tsa hona joale tsa kutlo
I_SENSE2-	13	I_SENSE2-	Setsi sa Taolo ea Likoloi	Mokhahlelo oa A shunt -ve
KE_SENSE2+	14	KE_SENSE2+		Mokhahlelo oa A shunt +ve
I_SENSE3-	10	I_SENSE3-		Mokhahlelo oa B shunt -ve. Hlokomela hore shunt ena e ho W halofo ea borokho ba inverter.
KE_SENSE3+	11	KE_SENSE3+		Mokhahlelo oa B shunt +ve. Hlokomela hore shunt ena e ho W halofo ea borokho ba inverter.

I_SENSE1-	17	I_SENSE1-	Setsi sa Taolo ea Likoloi	Reference voltage-ve
KE_SENSE1+	18	KE_SENSE1+		3.3V/2 palo ea litšupisotage +ve
KE_OUT1	16	KE_OUT1		Sehlahisoa se buffered 3.3V/2 Volts
KE_OUT2	12	KE_OUT2		Amplified output Phase A jwale
KE_OUT3	9	KE_OUT3		Amplified sephetho Mokhahlelo oa B hona joale
serial DE2 Interface
DE2	44	DE2	jenereithara ea leeme	Sebopeho sa serial bakeng sa tlhophiso ea mokhanni
Lisebelisoa tsa liheke tsa MOSFET
U_Motor	30	PHA	Mokhoa oa taolo ea heke	E hokahanya le mekhahlelo ea Motor.
V_Motor	29	PHB
W_Motor	28	PHC
High Side MOSFET heke drive
HS0	27	HSA	Mokhoa oa taolo ea heke	Karolo e holimo ea MOSFET Mokhahlelo oa A
HS1	26	HSB		Karolo e phahameng ea MOSFET Mokhahlelo oa B
HS2	25	HSC		Karolo e phahameng ea MOSFET Mokhahlelo oa C
Bootstrap
VBA	33	VBA	Mokhoa oa taolo ea heke	Boot Strap capacitor Mokhahlelo oa A
VBB	32	VBB		Boot Strap capacitor Phase ea B
VBC	31	VBC		Boot Strap capacitor Mokhahlelo oa C
Low Side MOSFET heke drive
LS0	21	LSA	Mokhoa oa taolo ea heke	Karolo e tlase ea MOSFET Mokhahlelo oa A
LS1	22	LSB		Karolo e tlase ea MOSFET Mokhahlelo oa B
LS2	23	LSC		Karolo e tlase ea MOSFET Mokhahlelo oa C
Dijithale I/O
MotorGateDrv _CE	3	CE	Boema-kepe ba puisano	E nolofalletsa mokhanni oa MC8026 MOSFET.
MotorGateDrv _ILIMIT_OUT	15	ILIMIT_OUT ( E sebetsa tlase)	Setsi sa Taolo ea Likoloi
Ha ho likhokahano
–	8	LV_OUT1
–	4	LV_OUT2
–	6	HV_IN1
–	5	HV_IN2

Tlhaloso ea Hardware

LIEKETSENG
Drone Propeller Reference Design Board e reretsoe ho bonts'a bokhoni ba lisebelisoa tsa taolo ea makoloi tse nyane tsa pin count ho lelapa la dsPIC33EP la single core Digital Signal Controllers (DSCs). Boto ea taolo e kenyelletsa likarolo tse fokolang tse fokolang ho fokotsa boima ba 'mele. Sebaka sa PCB se ka fokotseha ka boholo bakeng sa mofuta oa sepheo sa tlhahiso. Boto e ka hlophisoa ka sehokelo sa In System Serial Programming mme e kenyelletsa li-resistant tse peli tsa hajoale le mokhanni oa MOSFET. Sehokelo sa CAN se fanoa bakeng sa puisano le balaoli ba bang le ho fana ka tlhahisoleseling ea lebelo la litšupiso ha ho hlokahala. Inverter ea molaoli e nka matla a ho kenyatage sebakeng sa 10V ho isa ho 14V mme e ka fana ka karolo e tsoelang pele ea phallo ea 8A (RMS) ka lebelo le boletsoeng la ts'ebetso.tage range. Bakeng sa lintlha tse ling mabapi le litlhaloso tsa motlakase, sheba Sehlomathiso sa B. "Litlhaloso tsa Motlakase".

LITŠOANTŠISO LIKHABANE
Khaolo ena e akaretsa likarolo tse latelang tsa lisebelisoa tsa Drone Propeller Reference Design Board:

• dsPIC33EP32MC204 le potoloho e amanang le eona
• Phepelo ea motlakase
• Potoloho ea Hona joale ea Sense
• MOSFET heke driver circuitry
• Mehato e meraro ea Inverter Bridge
• ICSP Header/Debugger Interface

1. dsPIC33EP32MC204 le potoloho e amanang le eona
2. Phepelo ea motlakase
   Boto ea taolo e na le matla a mararo a laoloangtage hlahisa 12V, 5V le 3.3V e hlahisoang ke mokhanni oa MCP8026 MOSFET. Li-volts tse 3.3 li hlahisoa ho sebelisoa MCP8026 onboard buck regulator le tlhophiso ea maikutlo. Sheba lebokose le khubelu ho FIGURE A-1 karolong ea schematics. Matla a tsoang ka ntle ho betri a sebelisoa ka ho toba ho inverter ka li-connectors tsa matla. Capacitor ea 15uF e fana ka sefa ea DC bakeng sa ts'ebetso e tsitsitseng nakong ea liphetoho tse potlakileng tsa mojaro. Ka kopo, sheba leqephe la lintlha tsa sesebelisoa (MCP8026) bakeng sa bokhoni ba hajoale ba voltagtlhahiso.
3. Potoloho ea Hona joale ea Sense
   Hona joale ho utloahala ho sebelisoa mokhoa o tsebahalang oa "two shunt". Li-shunts tse peli tsa 10-miliohm li fana ka kenyelletso ea hajoale ho likenyelletso tsa on-chip Op-.Amps. The Op-Amps ba maemong a fapaneng a phaello ka phaello ea 7.5 e fanang ka 22Amp tlhōrō ea tekanyo ea hona joale ea tekanyo ea bokhoni. The ampLetšoao la hona joale le lified ho tloha karolong ea A (U half-bridge) le Phase B (W half-bridge) e fetoloa ke dsPIC controller firmware. A voltage referense e nang le tlhahiso ea buffered bakeng sa 3.3V / 2 e fana ka litšupiso tse se nang lerata tsa zero bakeng sa lipotoloho tsa hona joale tsa kutlo. Sheba karolo ea Schematics FIGURE A-4 bakeng sa lintlha.
4. MOSFET heke driver circuitry
   Mokhanni oa heke o sebetsoa ka hare ntle le li-capacitor tsa bootstrap le diode tse teng ka har'a boto 'me li etselitsoe ho hopola ho bulela li-MOSFET ka lebelo le tlase ka ho fetisisa.tage. Sheba lintlha tse mabapi le MCP8026 voltage ka har'a database.
   Sheba karolo ea Schematics FIGURE A-1 bakeng sa lintlha tsa khokahanyo.
5. Mehato e meraro ea Inverter Bridge
   Inverter ke borokho bo tloaelehileng ba 3 Half bo nang le lisebelisoa tsa 6 N Channel MOSFET tse khonang ho sebetsa likarolong tsohle tsa 4. Mokhanni oa MOSFET o hokahana ka kotloloho ka lihanyetsi tse fokotsang sekhahla sa ba bolailoeng ho Liheke tsa MOSFET. Potoloho e tloaelehileng ea bootstrap e nang le marang-rang a li-capacitor le diode e fanoe bakeng sa e 'ngoe le e 'ngoe ea MOSFET e lehlakoreng le phahameng bakeng sa matla a lekaneng a ho bulela heke.tage. Li-capacitor tsa bootstrap le diode li lekantsoe bakeng sa molumo o felletseng oa ts'ebetsotage range le jwale. Tlhahiso ea borokho ba inverter ea mekhahlelo e meraro e fumaneha ho U, V, le W bakeng sa mekhahlelo e meraro ea enjene. Sheba karolo ea Schematics FIGURE A-4 bakeng sa khokahanyo le lintlha tse ling.

ICSP Header/Debugger Interface
Ho hlophisa boto ea Smart Drone Controller: Ho hlophisa le ho lokisa liphoso ho sebelisoa ka sehokelo se tšoanang sa ICSP ISP1. Sebelisa PICKIT 4 ho etsa lenaneo le sehokelo sa PKOB, se hokahaneng 1 ho isa ho 1 joalo ka ha ho fanoe ho Lethathamo la 2-2. U ka etsa lenaneo ka MPLAB-X IDE kapa MPLAB-X IPE. Matlafatsa boto ka 11-14 Volts. Khetha hex e nepahetseng file 'me u latele litaelo ho IDE/IPE. Lenaneo le phethehile ha molaetsa oa "Programming/Verifying complete" o hlaha fensetereng ea tlhahiso.

• Sheba maqephe a data a MPLAB PICKIT 4 bakeng sa litaelo tsa ho lokisa liphoso

LITŠOANTŠISO LITŠOANTŠISO
Karolo ena e hlalosa mokhoa oa ho bonts'a ts'ebetso ea molaoli oa Drone. Moralo oa litšupiso o hloka li-module tse ling tse eketsehileng tsa kantle ho board le enjene.

• Motlakase oa 5V ho molaoli oa PWM
• Selaoli sa PWM se sebelisetsoang ho fana ka referense ea lebelo kapa potentiometer ho fana ka matla a fapanengtage referense ea lebelo
• Enjene ea BLDC e nang le liparamente joalo ka ha ho hlalositsoe ho Sehlomathiso sa B
• Mohloli oa matla a betri a 11-14V le 1500mAH matla

Make kapa mohlala ofe kapa ofe o lumellanang o ka sebelisoa ho nkela tse bontšitsoeng mona bakeng sa ts'ebetso e atlehileng. Ho bontšitsoe ka tlase ke examptse ling tsa lisebelisoa tse ka holimo le li-motors tse sebelisoang bakeng sa pontšo ena.

Molaoli oa PWM:

Enjene ea BLDC: DJI 2312

Betri:

Litaelo tsa ts'ebetso: Latela mehato e ka tlase:

Hlokomela: U SE KE UA HLOMELA PROPELLER KA NAKO ENA

Mohato oa 1: Khokahano ea mantlha ea mohloli oa matla
Hokela betri '+' le '-' ho li-terminals tsa VDC le GND ho matlafatsa selaoli se bohlale. Motlakase oa DC o ka boela oa sebelisoa.

Mohato oa 2: Letšoao la litšupiso tsa lebelo ho molaoli ea bohlale oa Drone.
Molaoli o nka referense ea ho kenya lebelo ho tsoa ho molaoli oa PWM ho 5V max tlhoro. Sephetho sa molaoli oa PWM se fana ka tlhahiso ea lets'oao la 5V le bonts'itsoeng fatše le hokahanyang le pin ea 5V e mamellang joalo ka ha ho bonts'itsoe setšoantšong. Ho boetse ho bonts'itsoe sebaka sa khokahano ea fatše.

Mohato oa 3: Phepelo ea motlakase ho molaoli oa PWM.
Hokela Kenyelletso ea kamehla ho litheminale tsa betri le tlhahiso (5V) ho phepelo ea taolo ea PWM.

Mohato oa 4: Tlhophiso ea taolo ea PWM:
Bophara ba phallo ea lets'oao ho tsoa ho molaoli oa PWM bo netefalitsoe bakeng sa lets'oao le nepahetseng ho firmware ho thibela ho bulela ka boomo le ho feta ka lebelo. Mookameli o na le li-switches tse peli tsa push-button. Khetha mokhoa oa ho sebetsa o sebelisa konopo ea "Khetha". Sebelisa konopo ea "Pulse Width" ho khetha lipakeng tsa maemo a 3 a taolo ea lebelo. Phetoho e potoloha ka mekhahlelo e 3 bakeng sa tlhahiso ea potoloho ea mosebetsi oa PWM ka mochine o mong le o mong.

• Boemo 1: 4-11%
• Boemo 2: 10-27.5%
• Boemo 3: 20-55%

Pontšo ea ponts'o e fapana ho tloha ho 800 ho isa ho 2200 bakeng sa phetoho e fapaneng ea potoloho ea mosebetsi ka har'a marang-rang. Ho fetola potentiometer ho molaoli oa PWM ho tla eketsa kapa ho fokotsa tlhahiso ea PWM.

Mohato oa 5: Khokahano ea li-motor terminal:
Hokela liteishene tsa enjene ho PHASE A,B, le C. Tatelano e etsa qeto ea hore na enjene e potoloha kae. Potoloho e lakatsehang ea Drone e shebile ka har'a enjene ho thibela propeller ho hlephisa. Ka hona ho bohlokoa ho netefatsa tataiso ea ho potoloha pele o kenya li-blades. Fana ka pontšo ea pontšo ea PWM ka ho fetola potentiometer ho molaoli oa PWM ho qala ka boemo bo fokolang ba ho otla ha pelo (800). Enjene e tla qala ho bilika ho 7.87% ea potoloho ea mosebetsi (50Hz) le holimo. Pontšo ea 7-Segment e bonts'a 1573 (7.87% duty cycle) ho 1931 (10.8% duty cycle) ha motor e bilika. Netefatsa hore tsela eo re bilikang ka eona e khahlanong le oache. Haeba ho se joalo, fetola likhokahano tse peli ho liteishene tsa makoloi. Khutlisetsa potentiometer sebakeng sa lebelo le tlaase ka ho fetisisa.

Mohato oa 6: Ho kenya Propeller:
Tlosa matla a betri. Hloekisa lehare la propeller ka ho le phurufaletsa ka har'a shaft ea enjene ka tsela e eang ho oache. Tšoara thupa/motoropo ka tieo ka letsoho le otlolletsoeng le hole le litšitiso tsohle le batho ha u ntse u sebetsa. Hokela phepelo ea motlakase. Ketso ea propeller e tla sebelisa matla khahlanong le letsoho ha le ohia, kahoo ho tšoara ka thata ho bohlokoa ho thibela kotsi ea 'mele. Fetola potentiometer ho fetola lebelo (pontšo e bontša pakeng tsa 1573 le 1931) Sena se phethela pontšo.

Sets'oants'o se ka tlase se bonts'a ts'ebetso ea wiring ka kakaretso bakeng sa pontšo.

Maqheka

LEBOTO LIEKETSO
Karolo ena e fana ka litšoantšo tsa schematics tsa dsPIC33EP32MC204 Drone Propeller Reference Design. Moqapi oa litšupiso o sebelisa mohaho o nang le FR4, 1.6 mm, Plated-Through-Hole (PTH).

Lethathamo la A-1 le akaretsa meralo ea Moralo oa Litšupiso:

TAFOLE A-1: ​​CHEMATIKI
Index ea lipalo	Maqheka Leqephe No.	Likarolo tsa Hardware
Setšoantšo sa A-1	1 ho tse 4	dsPIC33EP32MC204-dsPIC DSC(U1) likhokahano tsa likhokahano tsa bakhanni MCP8026-MOSFET 3.3V analog le filthara ea dijithale le marang-rang a maikutlo dsPIC DSC ts'ebetso ea ka hare amplifiers bakeng sa amplifying Bus Current Bootstrap netweke.
Setšoantšo sa A-2	2 ho tse 4	In-System Serial Programming Header ISP1 CAN Communication Interface Header P5 External PWM control control Interface Header P2 Seriba sa Debugger Interface P3
Setšoantšo sa A-3	3 ho tse 4	DC Bese voltage scaling resistor divider Back-emf voltage eketsa marang-rang Op-Amp phaello le litšupiso tsa potoloho bakeng sa kutlo ea hajoale
Setšoantšo sa A-4	4 ho tse 4	Motor Control Inverter -Borokho ba mekhahlelo e meraro ea MOSFET

Setšoantšo sa A-1:

Setšoantšo sa A-2

Setšoantšo sa A-4

Litlhaloso tsa Motlakase

LIEKETSENG
Karolo ena e fana ka lintlha tsa motlakase bakeng sa dsPIC33EP32MC204 Drone Motor Controller Reference Design (sheba Lethathamo la B-1).

LINTLHA TSA MOHLASE 1:

Paramethara	Ho sebetsa Range
Keletso DC Voltage	10-14V
Absolute Maximum Input DC Voltage	20V
Kenyeletso e Phahameng ea Hona Joale ka Sehokelo VDC le GND	10A
Sephetho se Tsoelang Pele Hajoale ka mohato @ 25°C	44A (Tlhōrō)

Litlhaloso tsa makoloi: DJI 2312
Motor Phase Resistance	42-47 limililione tsa Ohms
Motor Phase Inductance	7.5 micro-Henrys
Motor Pole Pairs	4

Hlokomela:

1. Ha e ntse e sebetsa mochesong oa tikoloho oa +25°C le ka har'a Input DC voltage range board e ntse e le ka har'a meeli ea mocheso bakeng sa maqhubu a tsoelang pele ho fihlela ho 5A (RMS).

Bill ea Lisebelisoa (BOM)

BILI LITS'ELISO

Ntho	Tlhaloso	Moqapi	Bongata
1	10uF 25V 10% 1206	C1	1
2	10uF 25V 10% 0805	C2,C17, C18	3
3	1uF 25V 10% 0402	C3, C5	2
4	22uF 25V 20% 0805	C4	1
5	100nF 25V 0402	C6	1
6	2.2uF 10V 0402	C24, C26	2
7	1uF 25V 10% 0603	C7, C8, C9, C10, C12, C13	6
8	100nF 50V 10% 0603	C11, C14, C15, C20	4
9	1.8nF 50V 10% 0402	C16	1
10	0.01uF 50V 10% 0603	C19, C23, C27,C25	3
11	100pF 50V 5% 0603	C21, C22	2
12	680uF 25V 10% RB2/4	C28	1
13	5.6nF 50V 10% 0603	C29, C30	2
14	1N5819 SOD323	D1, D2, D3, D7	4
15	1N5819 SOD323	D4, D5, D6	3
16	4.7uF 25V 10% 0805	E1	1
17	TPHR8504PL SOP8	NMOS1, NMOS2, NMOS3, NMOS4, NMOS5, NMOS6	6
18	15uH 1A SMD4*4	P4	1
19	200R 1% 0603	R1, R2	2
20	0R 1% 0603	R5,R27	2
21	47K 1% 0603	R4, R6, R14, R24	4
22	47R 1% 0402	R7, R8, R9, R18, R19, R20	6
23	2K 1% 0603	R10, R37, R38, R39, R40, R42, R45, R46, R48, R49, R54, R57	12
24	300K 1% 0402	R11, R12, R13	3
25	24.9R 1% 0603	R15, R16, R17	3
26	100K 1% 0402	R21, R22, R23	3
27	0.01R 1% 2010	R25,R26	1
28	0R 1% 0805	R28	1
29	sefaha 1R 0603	R29	1
30	18K 1% 0603	R30	1
31	4.99R 1% 0603	R31	1
32	11K 1% 0603	R32	1
33	30K 1% 0603	R33, R34, R47, R50	4
34	300R 1% 0603	R35, R44, R55	3
35	20k 1% 0603	R36	1
36	12K 1% 0603	R41, R53, R56	3
37	10K 1% 0603	R43, R52	2
38	1k 1% 0603	R51	1
39	330R 1% 0603	R58, R59	2

40	DSPIC33EP64MC504-I/PT TQFP44	U1	1
41	MCP8026-48L TQFP48	U2	1
42	2 PIN-68016-106HLF	P1, P2, P3	3
43	5 PIN-68016-106HLF	ISP1	1
44	6 PIN-68016-106HLF	P5	1

Liphetho tsa liteko

Liteko li ile tsa etsoa ho khetholla Drone Propeller Reference Design. Enjene ea 12V, e 'ne ea mekhahlelo e meraro ea PMSM Drone e bontšitsoeng ho seta leqepheng la 1 e ile ea sebelisoa bakeng sa tlhahlobo e nang le li-blades tse khomaretsoeng. Letlapa la D-1 le akaretsa liphetho tsa liteko. Setšoantšo sa D-1 se bontša lebelo khahlanong le matla a ho kenya.

Lethathamo la D-1

Setšoantšo sa D-1

Litokomane / Lisebelisoa

	MICROCHIP dsPIC33EP32MC204 Drone Propeller Reference Design [pdf] Bukana ea Mosebelisi dsPIC33EP32MC204, dsPIC33EP32MC204 Drone Propeller Reference Design, Drone Propeller Reference Design, Propeller Reference Design, Reference Design, Design
	MICROCHIP dsPIC33EP32MC204 Drone Propeller Reference Design [pdf] Litaelo DS70005545A, DS70005545, 70005545A, 70005545, dsPIC33EP32MC204 Drone Propeller Reference Design, dsPIC33EP32MC204, Drone Propeller Reference Design, Propeller Design Reference Design

Litšupiso

• Bukana ea Mosebelisi