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Wiki source code of Power controller

Version 25.1 by Mathias Larsen on 2026/09/22 19:04
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Mathias Larsen 22.1 1 == Tables of contents ==
2
Mathias Larsen 24.3 3 ----
4
Mathias Larsen 22.1 5 {{toc/}}
6
Mathias Larsen 14.2 7 == Connector pinout ==
Mathias Larsen 6.2 8
Mathias Larsen 14.6 9 |=(% style="width: 281px;" %)Pin|=(% style="width: 135px;" %) |=(% style="width: 157px;" %)comment|=(% style="width: 132px;" %)
Mathias Larsen 14.9 10 |(% style="width:281px" %)1|(% style="width:135px" %)CANH|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 11 |(% style="width:281px" %)2|(% style="width:135px" %)CANL|(% style="width:157px" %) |(% style="width:132px" %)
12 |(% style="width:281px" %)3|(% style="width:135px" %)FAN 1 PWM|(% style="width:157px" %) |(% style="width:132px" %)
13 |(% style="width:281px" %)4|(% style="width:135px" %)FAN 2 PWM|(% style="width:157px" %) |(% style="width:132px" %)
14 |(% style="width:281px" %)5|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
15 |(% style="width:281px" %)6|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
16 |(% style="width:281px" %)7|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
17 |(% style="width:281px" %)8|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
Mathias Larsen 14.7 18 |(% style="width:281px" %)9|(% style="width:135px" %)Accumulator|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 19 |(% style="width:281px" %)10|(% style="width:135px" %)Front|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.7 20 |(% style="width:281px" %)11|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
21 |(% style="width:281px" %)12|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 22 |(% style="width:281px" %)(((
Mathias Larsen 14.2 23 13
Mathias Larsen 14.7 24 )))|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
25 |(% style="width:281px" %)14|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
26 |(% style="width:281px" %)15|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
27 |(% style="width:281px" %)16|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
28 |(% style="width:281px" %)17|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
29 |(% style="width:281px" %)18|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
30 |(% style="width:281px" %)19|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
31 |(% style="width:281px" %)20|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
32 |(% style="width:281px" %)21|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
33 |(% style="width:281px" %)22|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
34 |(% style="width:281px" %)23|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
35 |(% style="width:281px" %)24|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
36 |(% style="width:281px" %)25|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.9 37 |(% style="width:281px" %)26|(% style="width:135px" %)12V power pump1|(% style="width:157px" %) |(% style="width:132px" %)
38 |(% style="width:281px" %)27|(% style="width:135px" %)12V Power pump2|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.7 39 |(% style="width:281px" %)28|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
40 |(% style="width:281px" %)29|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
41 |(% style="width:281px" %)30|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
Mathias Larsen 14.8 42 |(% style="width:281px" %)31|(% style="width:135px" %)Buzzer|(% style="width:157px" %)Is brake light in wiring harnes|(% style="width:132px" %)
Mathias Larsen 14.9 43 |(% style="width:281px" %)32|(% style="width:135px" %)Brake light|(% style="width:157px" %)Is buzzer in wiring harnes|(% style="width:132px" %)
44 |(% style="width:281px" %)33|(% style="width:135px" %)24V|(% style="width:157px" %)reserve|(% style="width:132px" %)
45 |(% style="width:281px" %)34|(% style="width:135px" %)24V|(% style="width:157px" %)reserve|(% style="width:132px" %)
46 |(% style="width:281px" %)35|(% style="width:135px" %)24V|(% style="width:157px" %)sensor card|(% style="width:132px" %)
Mathias Larsen 14.2 47
48
49
Mathias Larsen 6.2 50 == Microcontroller Pinout ==
51
Mathias Larsen 11.1 52 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 53
54
Mathias Larsen 2.4 55 |=Physical pin|=Electrical pin|=(((
56 Description
57 )))
Mathias Larsen 4.2 58 |1|VBAT|Power source from a backup battery if a RTC would be used (Connected to +3V3 in this case)
59 |5|OSC_IN|Clock input (8MHz oscillator)
60 |7|NRST|Negative reset which can be connected to a button (Connected to +3V3)
Mathias Larsen 7.2 61 |8|PA0|Analog signal: Current 6 Supply 24V resserve
62 |9|PA1|Analog signal: Current 7 Supply 24V resserve
63 |10|PA2|Analog signal: Current 5 Supply sensor card
64 |11|PA3|Analog signal: Current 4 Supply front
65 |12|PA4|Analog signal: Current 3 Supply accumulator
66 |13|PA5|Analog signal: Current 2 Supply fans
Mathias Larsen 7.3 67 |14|PA6|Digital output LED 9
68 |15|PA7|Digital output LED 2
69 |16|PB0|Analog signal Current 8 Supply buzzer, brake light
Mathias Larsen 8.1 70 |17|PB1|PWM: enable Fan 1
Mathias Larsen 7.4 71 |18|PB2|Input: V-sense
Mathias Larsen 5.1 72 |19|VSSA|Voltage source: Ground
Mathias Larsen 9.1 73 |20|VREF|Voltage reference (Internal voltage refferance)
Mathias Larsen 5.1 74 |21|VDDA|Voltage source: Power (+3V3)
Mathias Larsen 7.4 75 |22|PB10|Digital output: LED 8
Mathias Larsen 5.1 76 |23|VSS|Voltage source: Ground
77 |24|VDD|Voltage source: Power (+3V3)
Mathias Larsen 7.1 78 |25|PB11|Current 1 Internal components
79 |26|PB12|Current 9 Supply 12 V Pumps inverter and datalogger 
Mathias Larsen 8.1 80 |29|PB15|PWM: enable fan 2
Mathias Larsen 13.1 81 |30|PA8|Digital output Enable buzzeer(On the car it is Brake light)
82 |31|PA9|(((
83 Digital output Enable brake light(On the car it is the buzzer)
84 )))
Mathias Larsen 7.4 85 |32|PA10|Input ASMS signal
Mathias Larsen 12.1 86 |33|PA11|CAN-BUS RXD
87 |34|PA12|CAN-BUS TXD
Mathias Larsen 5.1 88 |35|VSS|Voltage source: Ground
89 |36|VDD|Voltage source: Power (+3V3)
90 |37|PA13|SWDIO
91 |38|PA14|SWCLK
Mathias Larsen 9.2 92 |40|PB3|Digital output: LED 3
93 |41|PB4|Digital output: LED 4
94 |42|PB5|Digital output: LED 5
Mathias Larsen 10.1 95 |43|PB6|Digital output: Enable Pump 1
Mathias Larsen 9.2 96 |44|PB7|Digital output: Enable Pump 2
97 |45|PB8|Digital output: LED 6
Mathias Larsen 5.1 98 |46|PB9|LED 7
99 |47|VSS|Voltage source: Ground
100 |48|VDD|Voltage source: Power (+3V3)
Mathias Larsen 2.1 101
Mathias Larsen 23.7 102 == Distribution circuit ==
Mathias Larsen 23.4 103
Mathias Larsen 23.8 104 [[image:1790100104451-169.png]]
105
Mathias Larsen 23.7 106 === Green LED ===
Mathias Larsen 23.4 107
Mathias Larsen 23.7 108 The green LED is used to see if the fuse is ok
Mathias Larsen 23.5 109
Mathias Larsen 23.4 110 [[image:1790098808447-123.png]]
111
Mathias Larsen 23.7 112 === Current sense ===
113
Mathias Larsen 23.8 114 [[image:1790100157872-786.png]]
115
Mathias Larsen 23.9 116 === Power Amplifier ===
117
118 [[image:1790101431805-672.png]]
119
Mathias Larsen 23.7 120 === Voltage measurement ===
121
Mathias Larsen 23.9 122 [[image:1790101449150-901.png]]
123
Mathias Larsen 23.11 124 === 12V supply(Did not work) ===
Mathias Larsen 23.10 125
Mathias Larsen 24.1 126 The buck converter overheated under
127
Mathias Larsen 23.11 128 [[image:1790102044737-969.png||height="368" width="925"]]
129
Mathias Larsen 24.1 130 Mateksys PM20S-2 Power Module was used as a quick fix to ensure that it had 12V for the competion.
Mathias Larsen 23.11 131
Mathias Larsen 23.12 132
Mathias Larsen 23.11 133 === 5V and 3V3 supply ===
134
135 Is
136
Mathias Larsen 23.1 137 == Controll logic ==
Mathias Larsen 14.20 138
Mathias Larsen 22.2 139 === LED light ===
Mathias Larsen 14.22 140
Mathias Larsen 23.3 141 The programable red light is in the same RGB LED Diode
Mathias Larsen 23.1 142
Mathias Larsen 23.3 143 Direct sourcing of current from the microcontroller with a 350 ohm ressistor in series.
144
145 [[image:1790098512666-432.png]]
146
Mathias Larsen 22.2 147 === Buzzer/Brake light ===
Mathias Larsen 14.22 148
Mathias Larsen 23.1 149 PUMPS
Mathias Larsen 22.2 150
Mathias Larsen 14.21 151
Mathias Larsen 22.1 152 == ==
153
Mathias Larsen 23.1 154 == ==
155
Mathias Larsen 17.1 156 == Known issues ==
Mathias Larsen 14.20 157
158 12 V did not work
159
Mathias Larsen 16.1 160 Current measurement not tested
161
162
Mathias Larsen 14.1 163 == Features to add ==
164
165 Add mosfets to cut power if the Lv battery is to low to save power
Mathias Larsen 16.1 166
167 Add a power distrobution for Autonomus system
Mathias Larsen 17.1 168
169
170 == BOM(bill of materials) ==
Mathias Larsen 20.2 171
Mathias Larsen 21.1 172 |=Part Number|=Description|=Ref Des|=Qty|=Manufacturer|=MPN
173 |CC0603KRX5R6BB475|Chip Capacitor, 4.7µF +/-20%, 10V, 0603|C1|1|Yageo Group|CC0603KRX5R6BB475
174 |CL10B104KA8NNNC|MLCC, 0.1 uF, 25V, ±10%, X7R, 0603|C2, C3, C4, C8, C9, C10, C14, C15, C16|9|Samsung Electro-Mechanics|CL10B104KA8NNNC
175 |CL10B105KA8NFNC|MLCC, 1uF, 25V, 10%, X7R, 0603|C5, C7|2|Samsung Electro-Mechanics|CL10B105KA8NFNC
176 |CL10B103KB8NNNC|MLCC, 10nF, 50V, +125C, X7R, ±10%, 0603|C6, C101, C201, C301, C401, C501, C601, C701, C801, C901|10|(( fatal error – no data ))| |
177 |885012206020|MLCC, General Purpose, 0603, 100nF, 10V|C11|1|Wurth Elektronik|885012206020
178 |885012006051|MLCC, General Purpose, 0603, 10pF, 50V|C12, C13|2|Wurth Elektronik|885012006051
179 |885012208124|MLCC, General Purpose, 1206, 2.2µF, 100V|C17, C19|2|Wurth Elektronik|885012208124
180 |885012108022|MLCC, General Purpose, 1206, 10µF, 50V|C18|1|Wurth Elektronik|885012108022
181 |885012206071R|MLCC, General Purpose, 0603, 100nF, 25V|C20|1|Wurth Elektronik|885012206071R
182 |885012107014|MLCC, General Purpose, 0805, 10µF, 16V|C21, C22|2|Wurth Elektronik|885012107014
183 |MBASU105SB5104KFNA01|MLCC, 50V, 10%, X5R, 0.1uF, 0402|C23, C24|2|TAIYO YUDEN|MBASU105SB5104KFNA01
184 |GRM32ER71H475KA88L|MLCC, 1210, 4.7uF, 50V, ±10%, X7R|C902, C903|2|Murata|GRM32ER71H475KA88L
185 |GRM188R71A225KE15D|MLCC, 0603, 2.2uF, X7R, 10V|C904|1|Murata|GRM188R71A225KE15D
186 |CC0402KRX7R6BB104|Chip Capacitor, 100nF +/-20%, 10V, 0402|C905, C908|2|Yageo Group|CC0402KRX7R6BB104
187 |GRM1555C1H102JA01J|MLCC, 0402, 1nF, 50V, ±5%, C0G|C906|1|Murata|GRM1555C1H102JA01J
188 |GRM1555C1H4R3CA01D|MLCC, 0402, 4.3pF, 50V, C0G, ±0.25pF|C907|1|Murata|GRM1555C1H4R3CA01D
189 |GRM32ER61E226KE15L|MLCC, 1210, 22uF, 25V, X5R|C909, C910, C911, C912|4|Murata|GRM32ER61E226KE15L
190 |824094024|WE-TVS TVS Diode, SOT23-3L, 2 Channel, 24V, 38pF|D1|1|Wurth Elektronik|824094024
191 |824500261|WE-TVSP SMT Power TVS Diode, DO-214AC, 400W, 26VDC|D2|1|Wurth Elektronik|824500261
192 |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
193 |01550900DR|Fuseholder - Acs Nano|F101, F201, F301, F401, F501, F601, F701, F801, F901, F902, F903, F904|12|Littelfuse|01550900DR
194 |0466.125NR|Electric Fuse, Very Fast Blow, 0.125A, 125VAC/VDC, 1206|F102|1|Littelfuse|0466.125NR
195 |776231-1|Conn Shrouded Header, HDR 35 POS, 4mm, Thru-Hole|J1|1|TE Connectivity|776231-1
196 |76829-0002|Mega-Fit Straight Male Header, 2x2, 5.7mm Pitch|J2|1|Molex|76829-0002
197 |(4 pin header)|2.54mm pitch 1x4 vertical header|J3|1|(( fatal error – no data ))| |
198 |44914-0401|Conn Header Vert 4POS 3mm|J4|1|Molex|44914-0401
199 |1461247-3|Relay, Gen Purpose, SPST, 8A, 24V|K1|1|TE Connectivity|OJ-SH-124LMH,000
200 |784234510|WE-CNSA Common Mode Line Filter, 1210, 7850Ω, 200mA|L1|1|(( fatal error – no data ))| |
201 |74438323100|WE-MAPI SMT Power Inductor, 2510, 10µH, 0.9A, 733mΩ|L2, L3|2|Wurth Elektronik|74438323100
202 |XAL7070-651MEB|General Purpose Inductor, 0.65uH, 20%, 3028|L901|1|Coilcraft|XAL7070-651MEB|
203 |BSS123NH6327XTSA1|MOSFET N-CH 100V 0.19A SOT-23|Q201, Q202, Q803, Q804, Q905, Q906|6|Infineon|BSS123NH6327XTSA1
204 |BSS83PH6327XTSA1|SIPMOS Small-Signal Transistor, -0.33A, -60V, SOT-23|Q801, Q802|2|Infineon|BSS83PH6327XTSA1
205 |IAUCN04S7L028ATMA1|Mosfet, N-ch, 40V, 100A|Q901, Q902|2|Infineon|IAUCN04S7L028ATMA1
206 |BSC084P03NS3GATMA1|P-Channel OptiMOS P3, -30V VDS, -78.6A ID, PG-TDSON-8-1|Q903, Q904|2|Infineon|BSC084P03NS3GATMA1
207 |(( TBD ))|Generic Resistor, 350Ω, 0603|R104, R204, R304, R404, R504, R606, R704, R804, R904|9|(( TBD ))| |
208 |(( TBD ))|Generic Resistor, 1KΩ, 0603|R205, R206, R807, R808, R913, R914|6|(( TBD ))| |
209 |(( TBD ))|Generic Resistor, 10KΩ, 0603|R1, R207, R208, R805, R806, R809, R810, R811, R812, R911, R912, R915, R916|13|(( TBD ))| |
210 |(( TBD ))|Generic Resistor, 1.6KΩ, 0603|R2|1|(( TBD ))| |
211 |(( TBD ))|Generic Resistor, 2.2Ω, 0603|R3|1|(( TBD ))| |
212 |(( TBD ))|Generic Resistor, 27KΩ, 0603|R4|1|(( TBD ))| |
213 |(( TBD ))|Generic Resistor, 5.1KΩ, 0603|R5|1|(( TBD ))| |
214 |WSLF25122L000FEA|Res Metal Strip 2512, 0.002Ω, 1%, 5W|R101, R201, R301, R401, R501, R601, R701, R801, R901|9|Vishay|WSLF25122L000FEA
215 |CR0603-FX-1002ELF|SMD Resistor, 10kΩ, ±1%, 100mW, 0603|R102, R105, R202, R302, R402, R502, R602, R702, R802, R902|10|Bourns|CR0603-FX-1002ELF
216 |CR0805-JW-472ELF|SMD Resistor, 4.7kΩ, ±5%, 125mW, 0805|R103, R203, R303, R403, R503, R603, R703, R803, R903|9|Bourns|CR0805-JW-472ELF
217 |CR0603-FX-1001ELF|RES SMD 1K Ohm, 1%, 1/10W, 0603|R106|1|Bourns|CR0603-FX-1001ELF
218 |CRCW060347K5FKEA|Res Thick Film 0603, 47.5KΩ, 1%, 1/10W|R905|1|Vishay|CRCW060347K5FKEA
219 |RC0603FR-13100KL|Chip Resistor, 100KΩ, ±1%, 0.1W, 0603|R906|1|Yageo Group|RC0603FR-13100KL
220 |AC0402FR-0712K1L|Res Thick Film 0402, 12.1KΩ, 1%, 1/16W|R907|1|Yageo Group|AC0402FR-0712K1L
221 |CRCW060340K2FKEA|Res Thick Film 0603, 40.2KΩ, 1%, 1/10W|R908|1|Vishay|CRCW060340K2FKEA
222 |CRCW06039K53FKEA|Res Thick Film 0603, 9.53KΩ, 1%, 1/10W|R909|1|Vishay|CRCW06039K53FKEA
223 |WSR33L000FEA|Res Metal Strip 4527, 0.003Ω, 1%, 3W|R910|1|Vishay|WSR33L000FEA
224 |STM32G431CBT6|MCU 32-bit ARM Cortex M4, 128KB Flash, 48-Pin LQFP|U1|1|STMicroelectronics|STM32G431CBT6
225 |NCV7344D13R2G|CAN FD Transceiver, ISO 11898-2, 5Mbps, SOIC-8|U2|1|onsemi|NCV7344D13R2G
226 |INA4180A4IPWR|26V Quad Channel Current Sense Amplifier, 14-TSSOP|U3, U4, U5|3|Texas Instruments|INA4180A4IPWR
227 |AP64060WU-7|DC-DC Synchronous Step Down, 4.5-40V to 0.8-26V, 0.6A, TSOT-26|U6|1|Diodes Inc.|AP64060WU-7
228 |AP2112K-3.3TRG1|Fixed Positive LDO, 3.3V, 0.4V Dropout, PDSO5|U7|1|Diodes Inc.|AP2112K-3.3TRG1
229 |LM5148RGYR|3.5-80V Current Mode Synchronous Buck Controller, 24-VQFN|U801|1|Texas Instruments|LM5148RGYR
230 |ASE-8.000MHz-E-T|Crystal Oscillator, 8MHz, 3.3V, 15pF, 4-Pin SMD|Y1|1|Abracon|ASE-8.000MHZ-E-T