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Wiki source code of Power controller

Version 23.7 by Mathias Larsen on 2026/09/22 17:57
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Mathias Larsen 22.1 1 == Tables of contents ==
2
3 {{toc/}}
4
Mathias Larsen 14.2 5 == Connector pinout ==
Mathias Larsen 6.2 6
Mathias Larsen 14.6 7 |=(% style="width: 281px;" %)Pin|=(% style="width: 135px;" %) |=(% style="width: 157px;" %)comment|=(% style="width: 132px;" %)
Mathias Larsen 14.9 8 |(% style="width:281px" %)1|(% style="width:135px" %)CANH|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 9 |(% style="width:281px" %)2|(% style="width:135px" %)CANL|(% style="width:157px" %) |(% style="width:132px" %)
10 |(% style="width:281px" %)3|(% style="width:135px" %)FAN 1 PWM|(% style="width:157px" %) |(% style="width:132px" %)
11 |(% style="width:281px" %)4|(% style="width:135px" %)FAN 2 PWM|(% style="width:157px" %) |(% style="width:132px" %)
12 |(% style="width:281px" %)5|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
13 |(% style="width:281px" %)6|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
14 |(% style="width:281px" %)7|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
15 |(% style="width:281px" %)8|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
Mathias Larsen 14.7 16 |(% style="width:281px" %)9|(% style="width:135px" %)Accumulator|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 17 |(% style="width:281px" %)10|(% style="width:135px" %)Front|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.7 18 |(% style="width:281px" %)11|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
19 |(% style="width:281px" %)12|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 20 |(% style="width:281px" %)(((
Mathias Larsen 14.2 21 13
Mathias Larsen 14.7 22 )))|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
23 |(% style="width:281px" %)14|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
24 |(% style="width:281px" %)15|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
25 |(% style="width:281px" %)16|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
26 |(% style="width:281px" %)17|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
27 |(% style="width:281px" %)18|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
28 |(% style="width:281px" %)19|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
29 |(% style="width:281px" %)20|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
30 |(% style="width:281px" %)21|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
31 |(% style="width:281px" %)22|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
32 |(% style="width:281px" %)23|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
33 |(% style="width:281px" %)24|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
34 |(% style="width:281px" %)25|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.9 35 |(% style="width:281px" %)26|(% style="width:135px" %)12V power pump1|(% style="width:157px" %) |(% style="width:132px" %)
36 |(% style="width:281px" %)27|(% style="width:135px" %)12V Power pump2|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.7 37 |(% style="width:281px" %)28|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
38 |(% style="width:281px" %)29|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
39 |(% style="width:281px" %)30|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
Mathias Larsen 14.8 40 |(% style="width:281px" %)31|(% style="width:135px" %)Buzzer|(% style="width:157px" %)Is brake light in wiring harnes|(% style="width:132px" %)
Mathias Larsen 14.9 41 |(% style="width:281px" %)32|(% style="width:135px" %)Brake light|(% style="width:157px" %)Is buzzer in wiring harnes|(% style="width:132px" %)
42 |(% style="width:281px" %)33|(% style="width:135px" %)24V|(% style="width:157px" %)reserve|(% style="width:132px" %)
43 |(% style="width:281px" %)34|(% style="width:135px" %)24V|(% style="width:157px" %)reserve|(% style="width:132px" %)
44 |(% style="width:281px" %)35|(% style="width:135px" %)24V|(% style="width:157px" %)sensor card|(% style="width:132px" %)
Mathias Larsen 14.2 45
46
47
Mathias Larsen 6.2 48 == Microcontroller Pinout ==
49
Mathias Larsen 11.1 50 The power controller uses a microcontroller to control the pumps, fans, buzzer, and brake light. It also features current monitoring and LED indicators. The Microcontroller used in this system is STM32G431CBT6
Mathias Larsen 7.1 51
52
Mathias Larsen 2.4 53 |=Physical pin|=Electrical pin|=(((
54 Description
55 )))
Mathias Larsen 4.2 56 |1|VBAT|Power source from a backup battery if a RTC would be used (Connected to +3V3 in this case)
57 |5|OSC_IN|Clock input (8MHz oscillator)
58 |7|NRST|Negative reset which can be connected to a button (Connected to +3V3)
Mathias Larsen 7.2 59 |8|PA0|Analog signal: Current 6 Supply 24V resserve
60 |9|PA1|Analog signal: Current 7 Supply 24V resserve
61 |10|PA2|Analog signal: Current 5 Supply sensor card
62 |11|PA3|Analog signal: Current 4 Supply front
63 |12|PA4|Analog signal: Current 3 Supply accumulator
64 |13|PA5|Analog signal: Current 2 Supply fans
Mathias Larsen 7.3 65 |14|PA6|Digital output LED 9
66 |15|PA7|Digital output LED 2
67 |16|PB0|Analog signal Current 8 Supply buzzer, brake light
Mathias Larsen 8.1 68 |17|PB1|PWM: enable Fan 1
Mathias Larsen 7.4 69 |18|PB2|Input: V-sense
Mathias Larsen 5.1 70 |19|VSSA|Voltage source: Ground
Mathias Larsen 9.1 71 |20|VREF|Voltage reference (Internal voltage refferance)
Mathias Larsen 5.1 72 |21|VDDA|Voltage source: Power (+3V3)
Mathias Larsen 7.4 73 |22|PB10|Digital output: LED 8
Mathias Larsen 5.1 74 |23|VSS|Voltage source: Ground
75 |24|VDD|Voltage source: Power (+3V3)
Mathias Larsen 7.1 76 |25|PB11|Current 1 Internal components
77 |26|PB12|Current 9 Supply 12 V Pumps inverter and datalogger 
Mathias Larsen 8.1 78 |29|PB15|PWM: enable fan 2
Mathias Larsen 13.1 79 |30|PA8|Digital output Enable buzzeer(On the car it is Brake light)
80 |31|PA9|(((
81 Digital output Enable brake light(On the car it is the buzzer)
82 )))
Mathias Larsen 7.4 83 |32|PA10|Input ASMS signal
Mathias Larsen 12.1 84 |33|PA11|CAN-BUS RXD
85 |34|PA12|CAN-BUS TXD
Mathias Larsen 5.1 86 |35|VSS|Voltage source: Ground
87 |36|VDD|Voltage source: Power (+3V3)
88 |37|PA13|SWDIO
89 |38|PA14|SWCLK
Mathias Larsen 9.2 90 |40|PB3|Digital output: LED 3
91 |41|PB4|Digital output: LED 4
92 |42|PB5|Digital output: LED 5
Mathias Larsen 10.1 93 |43|PB6|Digital output: Enable Pump 1
Mathias Larsen 9.2 94 |44|PB7|Digital output: Enable Pump 2
95 |45|PB8|Digital output: LED 6
Mathias Larsen 5.1 96 |46|PB9|LED 7
97 |47|VSS|Voltage source: Ground
98 |48|VDD|Voltage source: Power (+3V3)
Mathias Larsen 2.1 99
Mathias Larsen 23.7 100 == Distribution circuit ==
Mathias Larsen 23.4 101
Mathias Larsen 23.7 102 === Green LED ===
Mathias Larsen 23.4 103
Mathias Larsen 23.7 104 The green LED is used to see if the fuse is ok
Mathias Larsen 23.5 105
Mathias Larsen 23.4 106 [[image:1790098808447-123.png]]
107
Mathias Larsen 23.7 108 === Current sense ===
109
110 === Voltage measurement ===
111
Mathias Larsen 23.1 112 == Controll logic ==
Mathias Larsen 14.20 113
Mathias Larsen 22.2 114 === LED light ===
Mathias Larsen 14.22 115
Mathias Larsen 23.3 116 The programable red light is in the same RGB LED Diode
Mathias Larsen 23.1 117
Mathias Larsen 23.3 118 Direct sourcing of current from the microcontroller with a 350 ohm ressistor in series.
119
120 [[image:1790098512666-432.png]]
121
Mathias Larsen 22.2 122 === Buzzer/Brake light ===
Mathias Larsen 14.22 123
Mathias Larsen 23.1 124 PUMPS
Mathias Larsen 22.2 125
Mathias Larsen 14.21 126
Mathias Larsen 22.1 127 == ==
128
Mathias Larsen 23.1 129 == ==
130
Mathias Larsen 17.1 131 == Known issues ==
Mathias Larsen 14.20 132
133 12 V did not work
134
Mathias Larsen 16.1 135 Current measurement not tested
136
137
Mathias Larsen 14.1 138 == Features to add ==
139
140 Add mosfets to cut power if the Lv battery is to low to save power
Mathias Larsen 16.1 141
142 Add a power distrobution for Autonomus system
Mathias Larsen 17.1 143
144
145 == BOM(bill of materials) ==
Mathias Larsen 20.2 146
Mathias Larsen 21.1 147 |=Part Number|=Description|=Ref Des|=Qty|=Manufacturer|=MPN
148 |CC0603KRX5R6BB475|Chip Capacitor, 4.7µF +/-20%, 10V, 0603|C1|1|Yageo Group|CC0603KRX5R6BB475
149 |CL10B104KA8NNNC|MLCC, 0.1 uF, 25V, ±10%, X7R, 0603|C2, C3, C4, C8, C9, C10, C14, C15, C16|9|Samsung Electro-Mechanics|CL10B104KA8NNNC
150 |CL10B105KA8NFNC|MLCC, 1uF, 25V, 10%, X7R, 0603|C5, C7|2|Samsung Electro-Mechanics|CL10B105KA8NFNC
151 |CL10B103KB8NNNC|MLCC, 10nF, 50V, +125C, X7R, ±10%, 0603|C6, C101, C201, C301, C401, C501, C601, C701, C801, C901|10|(( fatal error – no data ))| |
152 |885012206020|MLCC, General Purpose, 0603, 100nF, 10V|C11|1|Wurth Elektronik|885012206020
153 |885012006051|MLCC, General Purpose, 0603, 10pF, 50V|C12, C13|2|Wurth Elektronik|885012006051
154 |885012208124|MLCC, General Purpose, 1206, 2.2µF, 100V|C17, C19|2|Wurth Elektronik|885012208124
155 |885012108022|MLCC, General Purpose, 1206, 10µF, 50V|C18|1|Wurth Elektronik|885012108022
156 |885012206071R|MLCC, General Purpose, 0603, 100nF, 25V|C20|1|Wurth Elektronik|885012206071R
157 |885012107014|MLCC, General Purpose, 0805, 10µF, 16V|C21, C22|2|Wurth Elektronik|885012107014
158 |MBASU105SB5104KFNA01|MLCC, 50V, 10%, X5R, 0.1uF, 0402|C23, C24|2|TAIYO YUDEN|MBASU105SB5104KFNA01
159 |GRM32ER71H475KA88L|MLCC, 1210, 4.7uF, 50V, ±10%, X7R|C902, C903|2|Murata|GRM32ER71H475KA88L
160 |GRM188R71A225KE15D|MLCC, 0603, 2.2uF, X7R, 10V|C904|1|Murata|GRM188R71A225KE15D
161 |CC0402KRX7R6BB104|Chip Capacitor, 100nF +/-20%, 10V, 0402|C905, C908|2|Yageo Group|CC0402KRX7R6BB104
162 |GRM1555C1H102JA01J|MLCC, 0402, 1nF, 50V, ±5%, C0G|C906|1|Murata|GRM1555C1H102JA01J
163 |GRM1555C1H4R3CA01D|MLCC, 0402, 4.3pF, 50V, C0G, ±0.25pF|C907|1|Murata|GRM1555C1H4R3CA01D
164 |GRM32ER61E226KE15L|MLCC, 1210, 22uF, 25V, X5R|C909, C910, C911, C912|4|Murata|GRM32ER61E226KE15L
165 |824094024|WE-TVS TVS Diode, SOT23-3L, 2 Channel, 24V, 38pF|D1|1|Wurth Elektronik|824094024
166 |824500261|WE-TVSP SMT Power TVS Diode, DO-214AC, 400W, 26VDC|D2|1|Wurth Elektronik|824500261
167 |150282M167310|WL-SFTD Full-color Top LED, 2828, R/G/B, 70°|D101, D201, D301, D402, D501, D601, D701, D801, D901|9|Wurth Elektronik|150282M167310
168 |01550900DR|Fuseholder - Acs Nano|F101, F201, F301, F401, F501, F601, F701, F801, F901, F902, F903, F904|12|Littelfuse|01550900DR
169 |0466.125NR|Electric Fuse, Very Fast Blow, 0.125A, 125VAC/VDC, 1206|F102|1|Littelfuse|0466.125NR
170 |776231-1|Conn Shrouded Header, HDR 35 POS, 4mm, Thru-Hole|J1|1|TE Connectivity|776231-1
171 |76829-0002|Mega-Fit Straight Male Header, 2x2, 5.7mm Pitch|J2|1|Molex|76829-0002
172 |(4 pin header)|2.54mm pitch 1x4 vertical header|J3|1|(( fatal error – no data ))| |
173 |44914-0401|Conn Header Vert 4POS 3mm|J4|1|Molex|44914-0401
174 |1461247-3|Relay, Gen Purpose, SPST, 8A, 24V|K1|1|TE Connectivity|OJ-SH-124LMH,000
175 |784234510|WE-CNSA Common Mode Line Filter, 1210, 7850Ω, 200mA|L1|1|(( fatal error – no data ))| |
176 |74438323100|WE-MAPI SMT Power Inductor, 2510, 10µH, 0.9A, 733mΩ|L2, L3|2|Wurth Elektronik|74438323100
177 |XAL7070-651MEB|General Purpose Inductor, 0.65uH, 20%, 3028|L901|1|Coilcraft|XAL7070-651MEB|
178 |BSS123NH6327XTSA1|MOSFET N-CH 100V 0.19A SOT-23|Q201, Q202, Q803, Q804, Q905, Q906|6|Infineon|BSS123NH6327XTSA1
179 |BSS83PH6327XTSA1|SIPMOS Small-Signal Transistor, -0.33A, -60V, SOT-23|Q801, Q802|2|Infineon|BSS83PH6327XTSA1
180 |IAUCN04S7L028ATMA1|Mosfet, N-ch, 40V, 100A|Q901, Q902|2|Infineon|IAUCN04S7L028ATMA1
181 |BSC084P03NS3GATMA1|P-Channel OptiMOS P3, -30V VDS, -78.6A ID, PG-TDSON-8-1|Q903, Q904|2|Infineon|BSC084P03NS3GATMA1
182 |(( TBD ))|Generic Resistor, 350Ω, 0603|R104, R204, R304, R404, R504, R606, R704, R804, R904|9|(( TBD ))| |
183 |(( TBD ))|Generic Resistor, 1KΩ, 0603|R205, R206, R807, R808, R913, R914|6|(( TBD ))| |
184 |(( TBD ))|Generic Resistor, 10KΩ, 0603|R1, R207, R208, R805, R806, R809, R810, R811, R812, R911, R912, R915, R916|13|(( TBD ))| |
185 |(( TBD ))|Generic Resistor, 1.6KΩ, 0603|R2|1|(( TBD ))| |
186 |(( TBD ))|Generic Resistor, 2.2Ω, 0603|R3|1|(( TBD ))| |
187 |(( TBD ))|Generic Resistor, 27KΩ, 0603|R4|1|(( TBD ))| |
188 |(( TBD ))|Generic Resistor, 5.1KΩ, 0603|R5|1|(( TBD ))| |
189 |WSLF25122L000FEA|Res Metal Strip 2512, 0.002Ω, 1%, 5W|R101, R201, R301, R401, R501, R601, R701, R801, R901|9|Vishay|WSLF25122L000FEA
190 |CR0603-FX-1002ELF|SMD Resistor, 10kΩ, ±1%, 100mW, 0603|R102, R105, R202, R302, R402, R502, R602, R702, R802, R902|10|Bourns|CR0603-FX-1002ELF
191 |CR0805-JW-472ELF|SMD Resistor, 4.7kΩ, ±5%, 125mW, 0805|R103, R203, R303, R403, R503, R603, R703, R803, R903|9|Bourns|CR0805-JW-472ELF
192 |CR0603-FX-1001ELF|RES SMD 1K Ohm, 1%, 1/10W, 0603|R106|1|Bourns|CR0603-FX-1001ELF
193 |CRCW060347K5FKEA|Res Thick Film 0603, 47.5KΩ, 1%, 1/10W|R905|1|Vishay|CRCW060347K5FKEA
194 |RC0603FR-13100KL|Chip Resistor, 100KΩ, ±1%, 0.1W, 0603|R906|1|Yageo Group|RC0603FR-13100KL
195 |AC0402FR-0712K1L|Res Thick Film 0402, 12.1KΩ, 1%, 1/16W|R907|1|Yageo Group|AC0402FR-0712K1L
196 |CRCW060340K2FKEA|Res Thick Film 0603, 40.2KΩ, 1%, 1/10W|R908|1|Vishay|CRCW060340K2FKEA
197 |CRCW06039K53FKEA|Res Thick Film 0603, 9.53KΩ, 1%, 1/10W|R909|1|Vishay|CRCW06039K53FKEA
198 |WSR33L000FEA|Res Metal Strip 4527, 0.003Ω, 1%, 3W|R910|1|Vishay|WSR33L000FEA
199 |STM32G431CBT6|MCU 32-bit ARM Cortex M4, 128KB Flash, 48-Pin LQFP|U1|1|STMicroelectronics|STM32G431CBT6
200 |NCV7344D13R2G|CAN FD Transceiver, ISO 11898-2, 5Mbps, SOIC-8|U2|1|onsemi|NCV7344D13R2G
201 |INA4180A4IPWR|26V Quad Channel Current Sense Amplifier, 14-TSSOP|U3, U4, U5|3|Texas Instruments|INA4180A4IPWR
202 |AP64060WU-7|DC-DC Synchronous Step Down, 4.5-40V to 0.8-26V, 0.6A, TSOT-26|U6|1|Diodes Inc.|AP64060WU-7
203 |AP2112K-3.3TRG1|Fixed Positive LDO, 3.3V, 0.4V Dropout, PDSO5|U7|1|Diodes Inc.|AP2112K-3.3TRG1
204 |LM5148RGYR|3.5-80V Current Mode Synchronous Buck Controller, 24-VQFN|U801|1|Texas Instruments|LM5148RGYR
205 |ASE-8.000MHz-E-T|Crystal Oscillator, 8MHz, 3.3V, 15pF, 4-Pin SMD|Y1|1|Abracon|ASE-8.000MHZ-E-T