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Wiki source code of Power controller

Version 30.2 by Mathias Larsen on 2026/09/23 14:55
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1 {{wikibox title="Power controller" caption="3D model of the Power controller from Altium Designer" width="30" labelWidth="50"}}
2 |Supply voltage|12–24 V DC
3 |Fused circuits|9 (5 × 24 V outputs, fan outputs, digital outputs, 12 V circuit, internal electronics)
4 |24 V outputs|5
5 |24 V fan outputs|2 (shared fuse)
6 |12 V outputs|2
7 |Digital outputs (shared fuse)|2 × 12 V switched (5 A), 2 × 24 V switched (330 mA), 2 × PWM
8 |Communication interface|CAN FD
9 |Maximum data rate|1 Mbps
10 {{/wikibox}}
11
12 == Tables of contents ==
13
14 ----
15
16 {{toc/}}
17
18 == Pinout ==
19
20 === Connector pinout ===
21
22 |=(% style="width: 281px;" %)Pin|=(% style="width: 135px;" %) |=(% style="width: 157px;" %)comment|=(% style="width: 132px;" %)
23 |(% style="width:281px" %)1|(% style="width:135px" %)CANH|(% style="width:157px" %) |(% style="width:132px" %)
24 |(% style="width:281px" %)2|(% style="width:135px" %)CANL|(% style="width:157px" %) |(% style="width:132px" %)
25 |(% style="width:281px" %)3|(% style="width:135px" %)FAN 1 PWM|(% style="width:157px" %) |(% style="width:132px" %)
26 |(% style="width:281px" %)4|(% style="width:135px" %)FAN 2 PWM|(% style="width:157px" %) |(% style="width:132px" %)
27 |(% style="width:281px" %)5|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
28 |(% style="width:281px" %)6|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
29 |(% style="width:281px" %)7|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
30 |(% style="width:281px" %)8|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
31 |(% style="width:281px" %)9|(% style="width:135px" %)Accumulator|(% style="width:157px" %) |(% style="width:132px" %)
32 |(% style="width:281px" %)10|(% style="width:135px" %)Front|(% style="width:157px" %) |(% style="width:132px" %)
33 |(% style="width:281px" %)11|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
34 |(% style="width:281px" %)12|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
35 |(% style="width:281px" %)(((
36 13
37 )))|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
38 |(% style="width:281px" %)14|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
39 |(% style="width:281px" %)15|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
40 |(% style="width:281px" %)16|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
41 |(% style="width:281px" %)17|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
42 |(% style="width:281px" %)18|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
43 |(% style="width:281px" %)19|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
44 |(% style="width:281px" %)20|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
45 |(% style="width:281px" %)21|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
46 |(% style="width:281px" %)22|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
47 |(% style="width:281px" %)23|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
48 |(% style="width:281px" %)24|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
49 |(% style="width:281px" %)25|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
50 |(% style="width:281px" %)26|(% style="width:135px" %)12V power pump1|(% style="width:157px" %) |(% style="width:132px" %)
51 |(% style="width:281px" %)27|(% style="width:135px" %)12V Power pump2|(% style="width:157px" %) |(% style="width:132px" %)
52 |(% style="width:281px" %)28|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
53 |(% style="width:281px" %)29|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
54 |(% style="width:281px" %)30|(% style="width:135px" %)GND|(% style="width:157px" %)Blob with tin|(% style="width:132px" %)
55 |(% style="width:281px" %)31|(% style="width:135px" %)Buzzer|(% style="width:157px" %)Is brake light in wiring harnes|(% style="width:132px" %)
56 |(% style="width:281px" %)32|(% style="width:135px" %)Brake light|(% style="width:157px" %)Is buzzer in wiring harnes|(% style="width:132px" %)
57 |(% style="width:281px" %)33|(% style="width:135px" %)24V|(% style="width:157px" %)reserve|(% style="width:132px" %)
58 |(% style="width:281px" %)34|(% style="width:135px" %)24V|(% style="width:157px" %)reserve|(% style="width:132px" %)
59 |(% style="width:281px" %)35|(% style="width:135px" %)24V|(% style="width:157px" %)sensor card|(% style="width:132px" %)
60
61
62
63 === Microcontroller Pinout ===
64
65 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
66
67
68 |=Physical pin|=Electrical pin|=(((
69 Description
70 )))
71 |1|VBAT|Power source from a backup battery if a RTC would be used (Connected to +3V3 in this case)
72 |5|OSC_IN|Clock input (8MHz oscillator)
73 |7|NRST|Negative reset which can be connected to a button (Connected to +3V3)
74 |8|PA0|Analog signal: Current 6 Supply 24V resserve
75 |9|PA1|Analog signal: Current 7 Supply 24V resserve
76 |10|PA2|Analog signal: Current 5 Supply sensor card
77 |11|PA3|Analog signal: Current 4 Supply front
78 |12|PA4|Analog signal: Current 3 Supply accumulator
79 |13|PA5|Analog signal: Current 2 Supply fans
80 |14|PA6|Digital output LED 9
81 |15|PA7|Digital output LED 2
82 |16|PB0|Analog signal Current 8 Supply buzzer, brake light
83 |17|PB1|PWM: enable Fan 1
84 |18|PB2|Input: V-sense
85 |19|VSSA|Voltage source: Ground
86 |20|VREF|Voltage reference (Internal voltage refferance)
87 |21|VDDA|Voltage source: Power (+3V3)
88 |22|PB10|Digital output: LED 8
89 |23|VSS|Voltage source: Ground
90 |24|VDD|Voltage source: Power (+3V3)
91 |25|PB11|Current 1 Internal components
92 |26|PB12|Current 9 Supply 12 V Pumps inverter and datalogger 
93 |29|PB15|PWM: enable fan 2
94 |30|PA8|Digital output Enable buzzeer(On the car it is Brake light)
95 |31|PA9|(((
96 Digital output Enable brake light(On the car it is the buzzer)
97 )))
98 |32|PA10|Input ASMS signal
99 |33|PA11|CAN-BUS RXD
100 |34|PA12|CAN-BUS TXD
101 |35|VSS|Voltage source: Ground
102 |36|VDD|Voltage source: Power (+3V3)
103 |37|PA13|SWDIO
104 |38|PA14|SWCLK
105 |40|PB3|Digital output: LED 3
106 |41|PB4|Digital output: LED 4
107 |42|PB5|Digital output: LED 5
108 |43|PB6|Digital output: Enable Pump 1
109 |44|PB7|Digital output: Enable Pump 2
110 |45|PB8|Digital output: LED 6
111 |46|PB9|LED 7
112 |47|VSS|Voltage source: Ground
113 |48|VDD|Voltage source: Power (+3V3)
114
115 == Distribution circuit ==
116
117 [[image:1790100104451-169.png]]
118
119 === Green LED ===
120
121 The green LED is used to see if the fuse is ok
122
123 [[image:1790098808447-123.png]]
124
125 === Current sense ===
126
127 [[image:1790100157872-786.png]]
128
129 === Power Amplifier ===
130
131 [[image:1790101431805-672.png]]
132
133 === Voltage measurement ===
134
135 [[image:1790101449150-901.png]]
136
137 === 12V supply(Did not work) ===
138
139 The buck converter overheated under
140
141 [[image:1790102044737-969.png||height="368" width="925"]]
142
143 Mateksys PM20S-2 Power Module was used as a quick fix to ensure that it had 12V for the competion.
144
145
146 === 5V and 3V3 supply ===
147
148 Is
149
150 == Controll logic ==
151
152 === LED light ===
153
154 The programable red light is in the same RGB LED Diode
155
156 Direct sourcing of current from the microcontroller with a 350 ohm ressistor in series.
157
158 [[image:1790098512666-432.png]]
159
160 === Buzzer/Brake light ===
161
162 PUMPS
163
164
165 == ==
166
167 == ==
168
169 == Known issues ==
170
171 12 V did not work
172
173 Current measurement not tested
174
175
176 == Features to add ==
177
178 Add mosfets to cut power if the Lv battery is to low to save power
179
180 Add a power distrobution for Autonomus system
181
182
183 == BOM(bill of materials) ==
184
185 |=Part Number|=Description|=Ref Des|=Qty|=Manufacturer|=MPN
186 |CC0603KRX5R6BB475|Chip Capacitor, 4.7µF +/-20%, 10V, 0603|C1|1|Yageo Group|CC0603KRX5R6BB475
187 |CL10B104KA8NNNC|MLCC, 0.1 uF, 25V, ±10%, X7R, 0603|C2, C3, C4, C8, C9, C10, C14, C15, C16|9|Samsung Electro-Mechanics|CL10B104KA8NNNC
188 |CL10B105KA8NFNC|MLCC, 1uF, 25V, 10%, X7R, 0603|C5, C7|2|Samsung Electro-Mechanics|CL10B105KA8NFNC
189 |CL10B103KB8NNNC|MLCC, 10nF, 50V, +125C, X7R, ±10%, 0603|C6, C101, C201, C301, C401, C501, C601, C701, C801, C901|10|(( fatal error – no data ))| |
190 |885012206020|MLCC, General Purpose, 0603, 100nF, 10V|C11|1|Wurth Elektronik|885012206020
191 |885012006051|MLCC, General Purpose, 0603, 10pF, 50V|C12, C13|2|Wurth Elektronik|885012006051
192 |885012208124|MLCC, General Purpose, 1206, 2.2µF, 100V|C17, C19|2|Wurth Elektronik|885012208124
193 |885012108022|MLCC, General Purpose, 1206, 10µF, 50V|C18|1|Wurth Elektronik|885012108022
194 |885012206071R|MLCC, General Purpose, 0603, 100nF, 25V|C20|1|Wurth Elektronik|885012206071R
195 |885012107014|MLCC, General Purpose, 0805, 10µF, 16V|C21, C22|2|Wurth Elektronik|885012107014
196 |MBASU105SB5104KFNA01|MLCC, 50V, 10%, X5R, 0.1uF, 0402|C23, C24|2|TAIYO YUDEN|MBASU105SB5104KFNA01
197 |GRM32ER71H475KA88L|MLCC, 1210, 4.7uF, 50V, ±10%, X7R|C902, C903|2|Murata|GRM32ER71H475KA88L
198 |GRM188R71A225KE15D|MLCC, 0603, 2.2uF, X7R, 10V|C904|1|Murata|GRM188R71A225KE15D
199 |CC0402KRX7R6BB104|Chip Capacitor, 100nF +/-20%, 10V, 0402|C905, C908|2|Yageo Group|CC0402KRX7R6BB104
200 |GRM1555C1H102JA01J|MLCC, 0402, 1nF, 50V, ±5%, C0G|C906|1|Murata|GRM1555C1H102JA01J
201 |GRM1555C1H4R3CA01D|MLCC, 0402, 4.3pF, 50V, C0G, ±0.25pF|C907|1|Murata|GRM1555C1H4R3CA01D
202 |GRM32ER61E226KE15L|MLCC, 1210, 22uF, 25V, X5R|C909, C910, C911, C912|4|Murata|GRM32ER61E226KE15L
203 |824094024|WE-TVS TVS Diode, SOT23-3L, 2 Channel, 24V, 38pF|D1|1|Wurth Elektronik|824094024
204 |824500261|WE-TVSP SMT Power TVS Diode, DO-214AC, 400W, 26VDC|D2|1|Wurth Elektronik|824500261
205 |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
206 |01550900DR|Fuseholder - Acs Nano|F101, F201, F301, F401, F501, F601, F701, F801, F901, F902, F903, F904|12|Littelfuse|01550900DR
207 |0466.125NR|Electric Fuse, Very Fast Blow, 0.125A, 125VAC/VDC, 1206|F102|1|Littelfuse|0466.125NR
208 |776231-1|Conn Shrouded Header, HDR 35 POS, 4mm, Thru-Hole|J1|1|TE Connectivity|776231-1
209 |76829-0002|Mega-Fit Straight Male Header, 2x2, 5.7mm Pitch|J2|1|Molex|76829-0002
210 |(4 pin header)|2.54mm pitch 1x4 vertical header|J3|1|(( fatal error – no data ))| |
211 |44914-0401|Conn Header Vert 4POS 3mm|J4|1|Molex|44914-0401
212 |1461247-3|Relay, Gen Purpose, SPST, 8A, 24V|K1|1|TE Connectivity|OJ-SH-124LMH,000
213 |784234510|WE-CNSA Common Mode Line Filter, 1210, 7850Ω, 200mA|L1|1|(( fatal error – no data ))| |
214 |74438323100|WE-MAPI SMT Power Inductor, 2510, 10µH, 0.9A, 733mΩ|L2, L3|2|Wurth Elektronik|74438323100
215 |XAL7070-651MEB|General Purpose Inductor, 0.65uH, 20%, 3028|L901|1|Coilcraft|XAL7070-651MEB|
216 |BSS123NH6327XTSA1|MOSFET N-CH 100V 0.19A SOT-23|Q201, Q202, Q803, Q804, Q905, Q906|6|Infineon|BSS123NH6327XTSA1
217 |BSS83PH6327XTSA1|SIPMOS Small-Signal Transistor, -0.33A, -60V, SOT-23|Q801, Q802|2|Infineon|BSS83PH6327XTSA1
218 |IAUCN04S7L028ATMA1|Mosfet, N-ch, 40V, 100A|Q901, Q902|2|Infineon|IAUCN04S7L028ATMA1
219 |BSC084P03NS3GATMA1|P-Channel OptiMOS P3, -30V VDS, -78.6A ID, PG-TDSON-8-1|Q903, Q904|2|Infineon|BSC084P03NS3GATMA1
220 |(( TBD ))|Generic Resistor, 350Ω, 0603|R104, R204, R304, R404, R504, R606, R704, R804, R904|9|(( TBD ))| |
221 |(( TBD ))|Generic Resistor, 1KΩ, 0603|R205, R206, R807, R808, R913, R914|6|(( TBD ))| |
222 |(( TBD ))|Generic Resistor, 10KΩ, 0603|R1, R207, R208, R805, R806, R809, R810, R811, R812, R911, R912, R915, R916|13|(( TBD ))| |
223 |(( TBD ))|Generic Resistor, 1.6KΩ, 0603|R2|1|(( TBD ))| |
224 |(( TBD ))|Generic Resistor, 2.2Ω, 0603|R3|1|(( TBD ))| |
225 |(( TBD ))|Generic Resistor, 27KΩ, 0603|R4|1|(( TBD ))| |
226 |(( TBD ))|Generic Resistor, 5.1KΩ, 0603|R5|1|(( TBD ))| |
227 |WSLF25122L000FEA|Res Metal Strip 2512, 0.002Ω, 1%, 5W|R101, R201, R301, R401, R501, R601, R701, R801, R901|9|Vishay|WSLF25122L000FEA
228 |CR0603-FX-1002ELF|SMD Resistor, 10kΩ, ±1%, 100mW, 0603|R102, R105, R202, R302, R402, R502, R602, R702, R802, R902|10|Bourns|CR0603-FX-1002ELF
229 |CR0805-JW-472ELF|SMD Resistor, 4.7kΩ, ±5%, 125mW, 0805|R103, R203, R303, R403, R503, R603, R703, R803, R903|9|Bourns|CR0805-JW-472ELF
230 |CR0603-FX-1001ELF|RES SMD 1K Ohm, 1%, 1/10W, 0603|R106|1|Bourns|CR0603-FX-1001ELF
231 |CRCW060347K5FKEA|Res Thick Film 0603, 47.5KΩ, 1%, 1/10W|R905|1|Vishay|CRCW060347K5FKEA
232 |RC0603FR-13100KL|Chip Resistor, 100KΩ, ±1%, 0.1W, 0603|R906|1|Yageo Group|RC0603FR-13100KL
233 |AC0402FR-0712K1L|Res Thick Film 0402, 12.1KΩ, 1%, 1/16W|R907|1|Yageo Group|AC0402FR-0712K1L
234 |CRCW060340K2FKEA|Res Thick Film 0603, 40.2KΩ, 1%, 1/10W|R908|1|Vishay|CRCW060340K2FKEA
235 |CRCW06039K53FKEA|Res Thick Film 0603, 9.53KΩ, 1%, 1/10W|R909|1|Vishay|CRCW06039K53FKEA
236 |WSR33L000FEA|Res Metal Strip 4527, 0.003Ω, 1%, 3W|R910|1|Vishay|WSR33L000FEA
237 |STM32G431CBT6|MCU 32-bit ARM Cortex M4, 128KB Flash, 48-Pin LQFP|U1|1|STMicroelectronics|STM32G431CBT6
238 |NCV7344D13R2G|CAN FD Transceiver, ISO 11898-2, 5Mbps, SOIC-8|U2|1|onsemi|NCV7344D13R2G
239 |INA4180A4IPWR|26V Quad Channel Current Sense Amplifier, 14-TSSOP|U3, U4, U5|3|Texas Instruments|INA4180A4IPWR
240 |AP64060WU-7|DC-DC Synchronous Step Down, 4.5-40V to 0.8-26V, 0.6A, TSOT-26|U6|1|Diodes Inc.|AP64060WU-7
241 |AP2112K-3.3TRG1|Fixed Positive LDO, 3.3V, 0.4V Dropout, PDSO5|U7|1|Diodes Inc.|AP2112K-3.3TRG1
242 |LM5148RGYR|3.5-80V Current Mode Synchronous Buck Controller, 24-VQFN|U801|1|Texas Instruments|LM5148RGYR
243 |ASE-8.000MHz-E-T|Crystal Oscillator, 8MHz, 3.3V, 15pF, 4-Pin SMD|Y1|1|Abracon|ASE-8.000MHZ-E-T
244
245
246
247 = AR27 =
248
249 Here is the documentaion for AR27
250
251
252