Page Comparison

Switching Circuit [Not Choosing This. Prefer Hall Effect Current Sensor]

• https://www.powerelectronicsnews.com/power-supply-design-tutorial-part-1-2-topologies-and-fundamentals-continued/

• https://www.maximintegrated.com/en/design/technical-documents/tutorials/2/2031.html

Remove DC-DC [Using different change]

• Remove all isolated 12V connection

• Replace with VBAT

Replace HV FET with solid-state relays [May not implement. No big advantages for changes]

• Q1 and Q2 system to be entirely replaced with solid-state relays

  • End changes

    • One end from HV_IN

    • Other end to pre-charge

      • iso_latch_out might be removed?

  • Links

    • https://electronics.stackexchange.com/questions/261711/how-can-i-replace-a-relay-with-a-mosfet-transistor

      • Reverse it?

• Part Search

  • Need 150V

  • https://www.digikey.ca/en/products/detail/bright-toward-industrial-co-ltd/AA58F/14302559

    • 1700V?

    • 120mA

  • https://www.digikey.ca/en/products/detail/panasonic-electric-works/AQY414SX/512420

    • 400V

    • 100mA

  • https://www.digikey.ca/en/products/detail/panasonic-electric-works/AQW210EHAX/512337

    • 350V

    • 120mA

    • Preferring This One

  • https://www.digikey.ca/en/products/detail/panasonic-electric-works/AQV257AX/646155

    • 200V

    • 250mA

Simplify Isolated DCDC

• U4

  • Original

    • Charge pump switch regulator

    • https://www.digikey.ca/en/products/detail/microchip-technology/tc7662beoa713/418710

  • New Change

    • https://electronics.stackexchange.com/questions/266187/efficient-alternative-to-a-charge-pump-for-stepping-up-a-3v-supply-to-3-3v

      • Use synchronous boost converter?

        • https://www.digikey.ca/en/products/detail/texas-instruments/tps61020drcrg4/1672113

• U5

  • Original

    • Optoisolator

    • https://www.digikey.ca/en/products/detail/broadcom-limited/HCPL-0211-000E/825261?s=N4IgTCBcDaIBIGEAKAZAtABjARm5jGAoiALoC%2BQA

  • New Change

    • https://electronics.stackexchange.com/questions/582157/alternative-to-optocoupler-in-circuit-design

    • https://electronics.stackexchange.com/questions/389934/automotive-signal-isolation-alternatives-to-optocouplers

      • Inductive coupler

      • RF coupler

      • Capacitive coupler

        • https://www.digikey.ca/en/products/detail/texas-instruments/iso7740fdw/6148234

• U9

  • Original

    • DC DC Converter

    • https://www.digikey.ca/en/products/detail/xp-power/ISE1212A-TR/5320900?s=N4IgTCBcDaIIwBYDsAGAtGAnAVnXNAcgCIgC6AvkA

  • New Change

    • https://forum.allaboutcircuits.com/threads/dc-dc-converter-alternatives.23964/

    • https://electronics.stackexchange.com/questions/543252/dc-to-dc-converter-options

      • Also use boost converter?

        • https://www.digikey.ca/en/products/detail/texas-instruments/tps61020drcrg4/1672113

        • https://www.digikey.ca/en/products/detail/texas-instruments/tps61012dgsg4/1672099