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Wiki source code of Power controller

Version 26.1 by Mathias Larsen on 2026/09/22 19:13
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Mathias Larsen 22.1 1 == Tables of contents ==
2
Mathias Larsen 26.1 3 {{wikibox title="Power controller " caption="Picture of the power controller " width="44" labelWidth="35"}}
4 fdf
5 {{/wikibox}}
6
Mathias Larsen 24.3 7 ----
8
Mathias Larsen 22.1 9 {{toc/}}
10
Mathias Larsen 14.2 11 == Connector pinout ==
Mathias Larsen 6.2 12
Mathias Larsen 14.6 13 |=(% style="width: 281px;" %)Pin|=(% style="width: 135px;" %) |=(% style="width: 157px;" %)comment|=(% style="width: 132px;" %)
Mathias Larsen 14.9 14 |(% style="width:281px" %)1|(% style="width:135px" %)CANH|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 15 |(% style="width:281px" %)2|(% style="width:135px" %)CANL|(% style="width:157px" %) |(% style="width:132px" %)
16 |(% style="width:281px" %)3|(% style="width:135px" %)FAN 1 PWM|(% style="width:157px" %) |(% style="width:132px" %)
17 |(% style="width:281px" %)4|(% style="width:135px" %)FAN 2 PWM|(% style="width:157px" %) |(% style="width:132px" %)
18 |(% style="width:281px" %)5|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
19 |(% style="width:281px" %)6|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
20 |(% style="width:281px" %)7|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
21 |(% style="width:281px" %)8|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
Mathias Larsen 14.7 22 |(% style="width:281px" %)9|(% style="width:135px" %)Accumulator|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 23 |(% style="width:281px" %)10|(% style="width:135px" %)Front|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.7 24 |(% style="width:281px" %)11|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
25 |(% style="width:281px" %)12|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 26 |(% style="width:281px" %)(((
Mathias Larsen 14.2 27 13
Mathias Larsen 14.7 28 )))|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
29 |(% style="width:281px" %)14|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
30 |(% style="width:281px" %)15|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
31 |(% style="width:281px" %)16|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
32 |(% style="width:281px" %)17|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
33 |(% style="width:281px" %)18|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
34 |(% style="width:281px" %)19|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
35 |(% style="width:281px" %)20|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
36 |(% style="width:281px" %)21|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
37 |(% style="width:281px" %)22|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
38 |(% style="width:281px" %)23|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
39 |(% style="width:281px" %)24|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
40 |(% style="width:281px" %)25|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.9 41 |(% style="width:281px" %)26|(% style="width:135px" %)12V power pump1|(% style="width:157px" %) |(% style="width:132px" %)
42 |(% style="width:281px" %)27|(% style="width:135px" %)12V Power pump2|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.7 43 |(% style="width:281px" %)28|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
44 |(% style="width:281px" %)29|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
45 |(% style="width:281px" %)30|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
Mathias Larsen 14.8 46 |(% style="width:281px" %)31|(% style="width:135px" %)Buzzer|(% style="width:157px" %)Is brake light in wiring harnes|(% style="width:132px" %)
Mathias Larsen 14.9 47 |(% style="width:281px" %)32|(% style="width:135px" %)Brake light|(% style="width:157px" %)Is buzzer in wiring harnes|(% style="width:132px" %)
48 |(% style="width:281px" %)33|(% style="width:135px" %)24V|(% style="width:157px" %)reserve|(% style="width:132px" %)
49 |(% style="width:281px" %)34|(% style="width:135px" %)24V|(% style="width:157px" %)reserve|(% style="width:132px" %)
50 |(% style="width:281px" %)35|(% style="width:135px" %)24V|(% style="width:157px" %)sensor card|(% style="width:132px" %)
Mathias Larsen 14.2 51
52
53
Mathias Larsen 6.2 54 == Microcontroller Pinout ==
55
Mathias Larsen 11.1 56 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 57
58
Mathias Larsen 2.4 59 |=Physical pin|=Electrical pin|=(((
60 Description
61 )))
Mathias Larsen 4.2 62 |1|VBAT|Power source from a backup battery if a RTC would be used (Connected to +3V3 in this case)
63 |5|OSC_IN|Clock input (8MHz oscillator)
64 |7|NRST|Negative reset which can be connected to a button (Connected to +3V3)
Mathias Larsen 7.2 65 |8|PA0|Analog signal: Current 6 Supply 24V resserve
66 |9|PA1|Analog signal: Current 7 Supply 24V resserve
67 |10|PA2|Analog signal: Current 5 Supply sensor card
68 |11|PA3|Analog signal: Current 4 Supply front
69 |12|PA4|Analog signal: Current 3 Supply accumulator
70 |13|PA5|Analog signal: Current 2 Supply fans
Mathias Larsen 7.3 71 |14|PA6|Digital output LED 9
72 |15|PA7|Digital output LED 2
73 |16|PB0|Analog signal Current 8 Supply buzzer, brake light
Mathias Larsen 8.1 74 |17|PB1|PWM: enable Fan 1
Mathias Larsen 7.4 75 |18|PB2|Input: V-sense
Mathias Larsen 5.1 76 |19|VSSA|Voltage source: Ground
Mathias Larsen 9.1 77 |20|VREF|Voltage reference (Internal voltage refferance)
Mathias Larsen 5.1 78 |21|VDDA|Voltage source: Power (+3V3)
Mathias Larsen 7.4 79 |22|PB10|Digital output: LED 8
Mathias Larsen 5.1 80 |23|VSS|Voltage source: Ground
81 |24|VDD|Voltage source: Power (+3V3)
Mathias Larsen 7.1 82 |25|PB11|Current 1 Internal components
83 |26|PB12|Current 9 Supply 12 V Pumps inverter and datalogger 
Mathias Larsen 8.1 84 |29|PB15|PWM: enable fan 2
Mathias Larsen 13.1 85 |30|PA8|Digital output Enable buzzeer(On the car it is Brake light)
86 |31|PA9|(((
87 Digital output Enable brake light(On the car it is the buzzer)
88 )))
Mathias Larsen 7.4 89 |32|PA10|Input ASMS signal
Mathias Larsen 12.1 90 |33|PA11|CAN-BUS RXD
91 |34|PA12|CAN-BUS TXD
Mathias Larsen 5.1 92 |35|VSS|Voltage source: Ground
93 |36|VDD|Voltage source: Power (+3V3)
94 |37|PA13|SWDIO
95 |38|PA14|SWCLK
Mathias Larsen 9.2 96 |40|PB3|Digital output: LED 3
97 |41|PB4|Digital output: LED 4
98 |42|PB5|Digital output: LED 5
Mathias Larsen 10.1 99 |43|PB6|Digital output: Enable Pump 1
Mathias Larsen 9.2 100 |44|PB7|Digital output: Enable Pump 2
101 |45|PB8|Digital output: LED 6
Mathias Larsen 5.1 102 |46|PB9|LED 7
103 |47|VSS|Voltage source: Ground
104 |48|VDD|Voltage source: Power (+3V3)
Mathias Larsen 2.1 105
Mathias Larsen 23.7 106 == Distribution circuit ==
Mathias Larsen 23.4 107
Mathias Larsen 23.8 108 [[image:1790100104451-169.png]]
109
Mathias Larsen 23.7 110 === Green LED ===
Mathias Larsen 23.4 111
Mathias Larsen 23.7 112 The green LED is used to see if the fuse is ok
Mathias Larsen 23.5 113
Mathias Larsen 23.4 114 [[image:1790098808447-123.png]]
115
Mathias Larsen 23.7 116 === Current sense ===
117
Mathias Larsen 23.8 118 [[image:1790100157872-786.png]]
119
Mathias Larsen 23.9 120 === Power Amplifier ===
121
122 [[image:1790101431805-672.png]]
123
Mathias Larsen 23.7 124 === Voltage measurement ===
125
Mathias Larsen 23.9 126 [[image:1790101449150-901.png]]
127
Mathias Larsen 23.11 128 === 12V supply(Did not work) ===
Mathias Larsen 23.10 129
Mathias Larsen 24.1 130 The buck converter overheated under
131
Mathias Larsen 23.11 132 [[image:1790102044737-969.png||height="368" width="925"]]
133
Mathias Larsen 24.1 134 Mateksys PM20S-2 Power Module was used as a quick fix to ensure that it had 12V for the competion.
Mathias Larsen 23.11 135
Mathias Larsen 23.12 136
Mathias Larsen 23.11 137 === 5V and 3V3 supply ===
138
139 Is
140
Mathias Larsen 23.1 141 == Controll logic ==
Mathias Larsen 14.20 142
Mathias Larsen 22.2 143 === LED light ===
Mathias Larsen 14.22 144
Mathias Larsen 23.3 145 The programable red light is in the same RGB LED Diode
Mathias Larsen 23.1 146
Mathias Larsen 23.3 147 Direct sourcing of current from the microcontroller with a 350 ohm ressistor in series.
148
149 [[image:1790098512666-432.png]]
150
Mathias Larsen 22.2 151 === Buzzer/Brake light ===
Mathias Larsen 14.22 152
Mathias Larsen 23.1 153 PUMPS
Mathias Larsen 22.2 154
Mathias Larsen 14.21 155
Mathias Larsen 22.1 156 == ==
157
Mathias Larsen 23.1 158 == ==
159
Mathias Larsen 17.1 160 == Known issues ==
Mathias Larsen 14.20 161
162 12 V did not work
163
Mathias Larsen 16.1 164 Current measurement not tested
165
166
Mathias Larsen 14.1 167 == Features to add ==
168
169 Add mosfets to cut power if the Lv battery is to low to save power
Mathias Larsen 16.1 170
171 Add a power distrobution for Autonomus system
Mathias Larsen 17.1 172
173
174 == BOM(bill of materials) ==
Mathias Larsen 20.2 175
Mathias Larsen 21.1 176 |=Part Number|=Description|=Ref Des|=Qty|=Manufacturer|=MPN
177 |CC0603KRX5R6BB475|Chip Capacitor, 4.7µF +/-20%, 10V, 0603|C1|1|Yageo Group|CC0603KRX5R6BB475
178 |CL10B104KA8NNNC|MLCC, 0.1 uF, 25V, ±10%, X7R, 0603|C2, C3, C4, C8, C9, C10, C14, C15, C16|9|Samsung Electro-Mechanics|CL10B104KA8NNNC
179 |CL10B105KA8NFNC|MLCC, 1uF, 25V, 10%, X7R, 0603|C5, C7|2|Samsung Electro-Mechanics|CL10B105KA8NFNC
180 |CL10B103KB8NNNC|MLCC, 10nF, 50V, +125C, X7R, ±10%, 0603|C6, C101, C201, C301, C401, C501, C601, C701, C801, C901|10|(( fatal error – no data ))| |
181 |885012206020|MLCC, General Purpose, 0603, 100nF, 10V|C11|1|Wurth Elektronik|885012206020
182 |885012006051|MLCC, General Purpose, 0603, 10pF, 50V|C12, C13|2|Wurth Elektronik|885012006051
183 |885012208124|MLCC, General Purpose, 1206, 2.2µF, 100V|C17, C19|2|Wurth Elektronik|885012208124
184 |885012108022|MLCC, General Purpose, 1206, 10µF, 50V|C18|1|Wurth Elektronik|885012108022
185 |885012206071R|MLCC, General Purpose, 0603, 100nF, 25V|C20|1|Wurth Elektronik|885012206071R
186 |885012107014|MLCC, General Purpose, 0805, 10µF, 16V|C21, C22|2|Wurth Elektronik|885012107014
187 |MBASU105SB5104KFNA01|MLCC, 50V, 10%, X5R, 0.1uF, 0402|C23, C24|2|TAIYO YUDEN|MBASU105SB5104KFNA01
188 |GRM32ER71H475KA88L|MLCC, 1210, 4.7uF, 50V, ±10%, X7R|C902, C903|2|Murata|GRM32ER71H475KA88L
189 |GRM188R71A225KE15D|MLCC, 0603, 2.2uF, X7R, 10V|C904|1|Murata|GRM188R71A225KE15D
190 |CC0402KRX7R6BB104|Chip Capacitor, 100nF +/-20%, 10V, 0402|C905, C908|2|Yageo Group|CC0402KRX7R6BB104
191 |GRM1555C1H102JA01J|MLCC, 0402, 1nF, 50V, ±5%, C0G|C906|1|Murata|GRM1555C1H102JA01J
192 |GRM1555C1H4R3CA01D|MLCC, 0402, 4.3pF, 50V, C0G, ±0.25pF|C907|1|Murata|GRM1555C1H4R3CA01D
193 |GRM32ER61E226KE15L|MLCC, 1210, 22uF, 25V, X5R|C909, C910, C911, C912|4|Murata|GRM32ER61E226KE15L
194 |824094024|WE-TVS TVS Diode, SOT23-3L, 2 Channel, 24V, 38pF|D1|1|Wurth Elektronik|824094024
195 |824500261|WE-TVSP SMT Power TVS Diode, DO-214AC, 400W, 26VDC|D2|1|Wurth Elektronik|824500261
196 |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
197 |01550900DR|Fuseholder - Acs Nano|F101, F201, F301, F401, F501, F601, F701, F801, F901, F902, F903, F904|12|Littelfuse|01550900DR
198 |0466.125NR|Electric Fuse, Very Fast Blow, 0.125A, 125VAC/VDC, 1206|F102|1|Littelfuse|0466.125NR
199 |776231-1|Conn Shrouded Header, HDR 35 POS, 4mm, Thru-Hole|J1|1|TE Connectivity|776231-1
200 |76829-0002|Mega-Fit Straight Male Header, 2x2, 5.7mm Pitch|J2|1|Molex|76829-0002
201 |(4 pin header)|2.54mm pitch 1x4 vertical header|J3|1|(( fatal error – no data ))| |
202 |44914-0401|Conn Header Vert 4POS 3mm|J4|1|Molex|44914-0401
203 |1461247-3|Relay, Gen Purpose, SPST, 8A, 24V|K1|1|TE Connectivity|OJ-SH-124LMH,000
204 |784234510|WE-CNSA Common Mode Line Filter, 1210, 7850Ω, 200mA|L1|1|(( fatal error – no data ))| |
205 |74438323100|WE-MAPI SMT Power Inductor, 2510, 10µH, 0.9A, 733mΩ|L2, L3|2|Wurth Elektronik|74438323100
206 |XAL7070-651MEB|General Purpose Inductor, 0.65uH, 20%, 3028|L901|1|Coilcraft|XAL7070-651MEB|
207 |BSS123NH6327XTSA1|MOSFET N-CH 100V 0.19A SOT-23|Q201, Q202, Q803, Q804, Q905, Q906|6|Infineon|BSS123NH6327XTSA1
208 |BSS83PH6327XTSA1|SIPMOS Small-Signal Transistor, -0.33A, -60V, SOT-23|Q801, Q802|2|Infineon|BSS83PH6327XTSA1
209 |IAUCN04S7L028ATMA1|Mosfet, N-ch, 40V, 100A|Q901, Q902|2|Infineon|IAUCN04S7L028ATMA1
210 |BSC084P03NS3GATMA1|P-Channel OptiMOS P3, -30V VDS, -78.6A ID, PG-TDSON-8-1|Q903, Q904|2|Infineon|BSC084P03NS3GATMA1
211 |(( TBD ))|Generic Resistor, 350Ω, 0603|R104, R204, R304, R404, R504, R606, R704, R804, R904|9|(( TBD ))| |
212 |(( TBD ))|Generic Resistor, 1KΩ, 0603|R205, R206, R807, R808, R913, R914|6|(( TBD ))| |
213 |(( TBD ))|Generic Resistor, 10KΩ, 0603|R1, R207, R208, R805, R806, R809, R810, R811, R812, R911, R912, R915, R916|13|(( TBD ))| |
214 |(( TBD ))|Generic Resistor, 1.6KΩ, 0603|R2|1|(( TBD ))| |
215 |(( TBD ))|Generic Resistor, 2.2Ω, 0603|R3|1|(( TBD ))| |
216 |(( TBD ))|Generic Resistor, 27KΩ, 0603|R4|1|(( TBD ))| |
217 |(( TBD ))|Generic Resistor, 5.1KΩ, 0603|R5|1|(( TBD ))| |
218 |WSLF25122L000FEA|Res Metal Strip 2512, 0.002Ω, 1%, 5W|R101, R201, R301, R401, R501, R601, R701, R801, R901|9|Vishay|WSLF25122L000FEA
219 |CR0603-FX-1002ELF|SMD Resistor, 10kΩ, ±1%, 100mW, 0603|R102, R105, R202, R302, R402, R502, R602, R702, R802, R902|10|Bourns|CR0603-FX-1002ELF
220 |CR0805-JW-472ELF|SMD Resistor, 4.7kΩ, ±5%, 125mW, 0805|R103, R203, R303, R403, R503, R603, R703, R803, R903|9|Bourns|CR0805-JW-472ELF
221 |CR0603-FX-1001ELF|RES SMD 1K Ohm, 1%, 1/10W, 0603|R106|1|Bourns|CR0603-FX-1001ELF
222 |CRCW060347K5FKEA|Res Thick Film 0603, 47.5KΩ, 1%, 1/10W|R905|1|Vishay|CRCW060347K5FKEA
223 |RC0603FR-13100KL|Chip Resistor, 100KΩ, ±1%, 0.1W, 0603|R906|1|Yageo Group|RC0603FR-13100KL
224 |AC0402FR-0712K1L|Res Thick Film 0402, 12.1KΩ, 1%, 1/16W|R907|1|Yageo Group|AC0402FR-0712K1L
225 |CRCW060340K2FKEA|Res Thick Film 0603, 40.2KΩ, 1%, 1/10W|R908|1|Vishay|CRCW060340K2FKEA
226 |CRCW06039K53FKEA|Res Thick Film 0603, 9.53KΩ, 1%, 1/10W|R909|1|Vishay|CRCW06039K53FKEA
227 |WSR33L000FEA|Res Metal Strip 4527, 0.003Ω, 1%, 3W|R910|1|Vishay|WSR33L000FEA
228 |STM32G431CBT6|MCU 32-bit ARM Cortex M4, 128KB Flash, 48-Pin LQFP|U1|1|STMicroelectronics|STM32G431CBT6
229 |NCV7344D13R2G|CAN FD Transceiver, ISO 11898-2, 5Mbps, SOIC-8|U2|1|onsemi|NCV7344D13R2G
230 |INA4180A4IPWR|26V Quad Channel Current Sense Amplifier, 14-TSSOP|U3, U4, U5|3|Texas Instruments|INA4180A4IPWR
231 |AP64060WU-7|DC-DC Synchronous Step Down, 4.5-40V to 0.8-26V, 0.6A, TSOT-26|U6|1|Diodes Inc.|AP64060WU-7
232 |AP2112K-3.3TRG1|Fixed Positive LDO, 3.3V, 0.4V Dropout, PDSO5|U7|1|Diodes Inc.|AP2112K-3.3TRG1
233 |LM5148RGYR|3.5-80V Current Mode Synchronous Buck Controller, 24-VQFN|U801|1|Texas Instruments|LM5148RGYR
234 |ASE-8.000MHz-E-T|Crystal Oscillator, 8MHz, 3.3V, 15pF, 4-Pin SMD|Y1|1|Abracon|ASE-8.000MHZ-E-T