This is a small PBC to simulate the CP signal of an electric vehicle (EV) and the PP signal of the IEC 62196 type 2 or SAE J1772 type 1 plug according to IEC 61851.
The EV shows different resistor values to signal its status. 5 miniature toggle switches allow to simulate the CP signal for following EV states:
| status | S1 | S2 | S3 | S4 | S5 | description |
|---|---|---|---|---|---|---|
| A | off | x | x | x | x | EV disconnected |
| B | on | off | x | off | off | EV connected |
| C | on | on | off | off | off | charging request |
| D | on | on | on | off | off | ventilation request |
| E | on | x | x | on | off | short circuit |
| R | on | x | x | x | on | diode shorted |
Different resistor values in the connector on each side fo the charging cable signal the EVSE and the EV the ampacity of the cable, to avoid an overload condition. Another 5 toggles switches allow to simulate the PP signal for the following cable ampacities:
| ampacity | S6 | S7 | S8 | S9 | S10 |
|---|---|---|---|---|---|
| disconnected | off | x | x | x | x |
| 13A | on | off | x | x | x |
| 20A | on | on | off | x | x |
| 32A | on | on | on | off | x |
| 63A | on | on | on | on | off |
| short | on | on | on | on | on |
The PP part of the PCB can be broken off to reduce PCB size when the PP simulation is not nedded.
| designator | value |
|---|---|
| R1 | 120Ω |
| R2 | 2.7kΩ |
| Ra2 | 39Ω |
| R3 | 1.3kΩ |
| R4 | 270Ω |
| D5 | 1N4934 |
| R6 | 1.5kΩ |
| R7 | 1.2kΩ |
| Ra7 | 47Ω |
| R8 | 330Ω |
| R9 | 180Ω |
| R10 | 68Ω |
| S1,S2,S3,S4,S5,S6,S7,S8,S9,S10 | miniature Toggle switch |
| case | hammond 1551K |
| 2mm zip tie |
The simulator can be simulated here: https://tra.fo/cp-simulation