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Wiki source code of Power controller

Version 24.1 by Mathias Larsen on 2026/09/22 18:55
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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 23.8 102 [[image:1790100104451-169.png]]
103
Mathias Larsen 23.7 104 === Green LED ===
Mathias Larsen 23.4 105
Mathias Larsen 23.7 106 The green LED is used to see if the fuse is ok
Mathias Larsen 23.5 107
Mathias Larsen 23.4 108 [[image:1790098808447-123.png]]
109
Mathias Larsen 23.7 110 === Current sense ===
111
Mathias Larsen 23.8 112 [[image:1790100157872-786.png]]
113
Mathias Larsen 23.9 114 === Power Amplifier ===
115
116 [[image:1790101431805-672.png]]
117
Mathias Larsen 23.7 118 === Voltage measurement ===
119
Mathias Larsen 23.9 120 [[image:1790101449150-901.png]]
121
Mathias Larsen 23.11 122 === 12V supply(Did not work) ===
Mathias Larsen 23.10 123
Mathias Larsen 24.1 124 The buck converter overheated under
125
Mathias Larsen 23.11 126 [[image:1790102044737-969.png||height="368" width="925"]]
127
Mathias Larsen 24.1 128 Mateksys PM20S-2 Power Module was used as a quick fix to ensure that it had 12V for the competion.
Mathias Larsen 23.11 129
Mathias Larsen 23.12 130
Mathias Larsen 23.11 131 === 5V and 3V3 supply ===
132
133 Is
134
Mathias Larsen 23.1 135 == Controll logic ==
Mathias Larsen 14.20 136
Mathias Larsen 22.2 137 === LED light ===
Mathias Larsen 14.22 138
Mathias Larsen 23.3 139 The programable red light is in the same RGB LED Diode
Mathias Larsen 23.1 140
Mathias Larsen 23.3 141 Direct sourcing of current from the microcontroller with a 350 ohm ressistor in series.
142
143 [[image:1790098512666-432.png]]
144
Mathias Larsen 22.2 145 === Buzzer/Brake light ===
Mathias Larsen 14.22 146
Mathias Larsen 23.1 147 PUMPS
Mathias Larsen 22.2 148
Mathias Larsen 14.21 149
Mathias Larsen 22.1 150 == ==
151
Mathias Larsen 23.1 152 == ==
153
Mathias Larsen 17.1 154 == Known issues ==
Mathias Larsen 14.20 155
156 12 V did not work
157
Mathias Larsen 16.1 158 Current measurement not tested
159
160
Mathias Larsen 14.1 161 == Features to add ==
162
163 Add mosfets to cut power if the Lv battery is to low to save power
Mathias Larsen 16.1 164
165 Add a power distrobution for Autonomus system
Mathias Larsen 17.1 166
167
168 == BOM(bill of materials) ==
Mathias Larsen 20.2 169
Mathias Larsen 21.1 170 |=Part Number|=Description|=Ref Des|=Qty|=Manufacturer|=MPN
171 |CC0603KRX5R6BB475|Chip Capacitor, 4.7µF +/-20%, 10V, 0603|C1|1|Yageo Group|CC0603KRX5R6BB475
172 |CL10B104KA8NNNC|MLCC, 0.1 uF, 25V, ±10%, X7R, 0603|C2, C3, C4, C8, C9, C10, C14, C15, C16|9|Samsung Electro-Mechanics|CL10B104KA8NNNC
173 |CL10B105KA8NFNC|MLCC, 1uF, 25V, 10%, X7R, 0603|C5, C7|2|Samsung Electro-Mechanics|CL10B105KA8NFNC
174 |CL10B103KB8NNNC|MLCC, 10nF, 50V, +125C, X7R, ±10%, 0603|C6, C101, C201, C301, C401, C501, C601, C701, C801, C901|10|(( fatal error – no data ))| |
175 |885012206020|MLCC, General Purpose, 0603, 100nF, 10V|C11|1|Wurth Elektronik|885012206020
176 |885012006051|MLCC, General Purpose, 0603, 10pF, 50V|C12, C13|2|Wurth Elektronik|885012006051
177 |885012208124|MLCC, General Purpose, 1206, 2.2µF, 100V|C17, C19|2|Wurth Elektronik|885012208124
178 |885012108022|MLCC, General Purpose, 1206, 10µF, 50V|C18|1|Wurth Elektronik|885012108022
179 |885012206071R|MLCC, General Purpose, 0603, 100nF, 25V|C20|1|Wurth Elektronik|885012206071R
180 |885012107014|MLCC, General Purpose, 0805, 10µF, 16V|C21, C22|2|Wurth Elektronik|885012107014
181 |MBASU105SB5104KFNA01|MLCC, 50V, 10%, X5R, 0.1uF, 0402|C23, C24|2|TAIYO YUDEN|MBASU105SB5104KFNA01
182 |GRM32ER71H475KA88L|MLCC, 1210, 4.7uF, 50V, ±10%, X7R|C902, C903|2|Murata|GRM32ER71H475KA88L
183 |GRM188R71A225KE15D|MLCC, 0603, 2.2uF, X7R, 10V|C904|1|Murata|GRM188R71A225KE15D
184 |CC0402KRX7R6BB104|Chip Capacitor, 100nF +/-20%, 10V, 0402|C905, C908|2|Yageo Group|CC0402KRX7R6BB104
185 |GRM1555C1H102JA01J|MLCC, 0402, 1nF, 50V, ±5%, C0G|C906|1|Murata|GRM1555C1H102JA01J
186 |GRM1555C1H4R3CA01D|MLCC, 0402, 4.3pF, 50V, C0G, ±0.25pF|C907|1|Murata|GRM1555C1H4R3CA01D
187 |GRM32ER61E226KE15L|MLCC, 1210, 22uF, 25V, X5R|C909, C910, C911, C912|4|Murata|GRM32ER61E226KE15L
188 |824094024|WE-TVS TVS Diode, SOT23-3L, 2 Channel, 24V, 38pF|D1|1|Wurth Elektronik|824094024
189 |824500261|WE-TVSP SMT Power TVS Diode, DO-214AC, 400W, 26VDC|D2|1|Wurth Elektronik|824500261
190 |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
191 |01550900DR|Fuseholder - Acs Nano|F101, F201, F301, F401, F501, F601, F701, F801, F901, F902, F903, F904|12|Littelfuse|01550900DR
192 |0466.125NR|Electric Fuse, Very Fast Blow, 0.125A, 125VAC/VDC, 1206|F102|1|Littelfuse|0466.125NR
193 |776231-1|Conn Shrouded Header, HDR 35 POS, 4mm, Thru-Hole|J1|1|TE Connectivity|776231-1
194 |76829-0002|Mega-Fit Straight Male Header, 2x2, 5.7mm Pitch|J2|1|Molex|76829-0002
195 |(4 pin header)|2.54mm pitch 1x4 vertical header|J3|1|(( fatal error – no data ))| |
196 |44914-0401|Conn Header Vert 4POS 3mm|J4|1|Molex|44914-0401
197 |1461247-3|Relay, Gen Purpose, SPST, 8A, 24V|K1|1|TE Connectivity|OJ-SH-124LMH,000
198 |784234510|WE-CNSA Common Mode Line Filter, 1210, 7850Ω, 200mA|L1|1|(( fatal error – no data ))| |
199 |74438323100|WE-MAPI SMT Power Inductor, 2510, 10µH, 0.9A, 733mΩ|L2, L3|2|Wurth Elektronik|74438323100
200 |XAL7070-651MEB|General Purpose Inductor, 0.65uH, 20%, 3028|L901|1|Coilcraft|XAL7070-651MEB|
201 |BSS123NH6327XTSA1|MOSFET N-CH 100V 0.19A SOT-23|Q201, Q202, Q803, Q804, Q905, Q906|6|Infineon|BSS123NH6327XTSA1
202 |BSS83PH6327XTSA1|SIPMOS Small-Signal Transistor, -0.33A, -60V, SOT-23|Q801, Q802|2|Infineon|BSS83PH6327XTSA1
203 |IAUCN04S7L028ATMA1|Mosfet, N-ch, 40V, 100A|Q901, Q902|2|Infineon|IAUCN04S7L028ATMA1
204 |BSC084P03NS3GATMA1|P-Channel OptiMOS P3, -30V VDS, -78.6A ID, PG-TDSON-8-1|Q903, Q904|2|Infineon|BSC084P03NS3GATMA1
205 |(( TBD ))|Generic Resistor, 350Ω, 0603|R104, R204, R304, R404, R504, R606, R704, R804, R904|9|(( TBD ))| |
206 |(( TBD ))|Generic Resistor, 1KΩ, 0603|R205, R206, R807, R808, R913, R914|6|(( TBD ))| |
207 |(( TBD ))|Generic Resistor, 10KΩ, 0603|R1, R207, R208, R805, R806, R809, R810, R811, R812, R911, R912, R915, R916|13|(( TBD ))| |
208 |(( TBD ))|Generic Resistor, 1.6KΩ, 0603|R2|1|(( TBD ))| |
209 |(( TBD ))|Generic Resistor, 2.2Ω, 0603|R3|1|(( TBD ))| |
210 |(( TBD ))|Generic Resistor, 27KΩ, 0603|R4|1|(( TBD ))| |
211 |(( TBD ))|Generic Resistor, 5.1KΩ, 0603|R5|1|(( TBD ))| |
212 |WSLF25122L000FEA|Res Metal Strip 2512, 0.002Ω, 1%, 5W|R101, R201, R301, R401, R501, R601, R701, R801, R901|9|Vishay|WSLF25122L000FEA
213 |CR0603-FX-1002ELF|SMD Resistor, 10kΩ, ±1%, 100mW, 0603|R102, R105, R202, R302, R402, R502, R602, R702, R802, R902|10|Bourns|CR0603-FX-1002ELF
214 |CR0805-JW-472ELF|SMD Resistor, 4.7kΩ, ±5%, 125mW, 0805|R103, R203, R303, R403, R503, R603, R703, R803, R903|9|Bourns|CR0805-JW-472ELF
215 |CR0603-FX-1001ELF|RES SMD 1K Ohm, 1%, 1/10W, 0603|R106|1|Bourns|CR0603-FX-1001ELF
216 |CRCW060347K5FKEA|Res Thick Film 0603, 47.5KΩ, 1%, 1/10W|R905|1|Vishay|CRCW060347K5FKEA
217 |RC0603FR-13100KL|Chip Resistor, 100KΩ, ±1%, 0.1W, 0603|R906|1|Yageo Group|RC0603FR-13100KL
218 |AC0402FR-0712K1L|Res Thick Film 0402, 12.1KΩ, 1%, 1/16W|R907|1|Yageo Group|AC0402FR-0712K1L
219 |CRCW060340K2FKEA|Res Thick Film 0603, 40.2KΩ, 1%, 1/10W|R908|1|Vishay|CRCW060340K2FKEA
220 |CRCW06039K53FKEA|Res Thick Film 0603, 9.53KΩ, 1%, 1/10W|R909|1|Vishay|CRCW06039K53FKEA
221 |WSR33L000FEA|Res Metal Strip 4527, 0.003Ω, 1%, 3W|R910|1|Vishay|WSR33L000FEA
222 |STM32G431CBT6|MCU 32-bit ARM Cortex M4, 128KB Flash, 48-Pin LQFP|U1|1|STMicroelectronics|STM32G431CBT6
223 |NCV7344D13R2G|CAN FD Transceiver, ISO 11898-2, 5Mbps, SOIC-8|U2|1|onsemi|NCV7344D13R2G
224 |INA4180A4IPWR|26V Quad Channel Current Sense Amplifier, 14-TSSOP|U3, U4, U5|3|Texas Instruments|INA4180A4IPWR
225 |AP64060WU-7|DC-DC Synchronous Step Down, 4.5-40V to 0.8-26V, 0.6A, TSOT-26|U6|1|Diodes Inc.|AP64060WU-7
226 |AP2112K-3.3TRG1|Fixed Positive LDO, 3.3V, 0.4V Dropout, PDSO5|U7|1|Diodes Inc.|AP2112K-3.3TRG1
227 |LM5148RGYR|3.5-80V Current Mode Synchronous Buck Controller, 24-VQFN|U801|1|Texas Instruments|LM5148RGYR
228 |ASE-8.000MHz-E-T|Crystal Oscillator, 8MHz, 3.3V, 15pF, 4-Pin SMD|Y1|1|Abracon|ASE-8.000MHZ-E-T