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Simplify Charge Pump and Depletion Mode FET
U4
Original parts
Charge pump switch regulator
Depletion mode FET
New Change
Find closed switch to replace the two components
Solid-state relay
All rated at 500V and 0.5A
https://www.digikey.ca/en/products/detail/ixys-integrated-circuits-division/PM1206/654953
600V and 0.5A
AC
https://www.digikey.ca/en/products/detail/ixys-integrated-circuits-division/CPC1963G/2417218
600V and 0.5A
AC
https://www.digikey.ca/en/products/detail/ixys-integrated-circuits-division/CPC1983Y/3077525
https://www.digikey.ca/en/products/detail/panasonic-electric-works/AQZ204/646377
400V and 0.5A
Datasheet below
Preferring this one?
Smaller changes
Removing:
Fan control
Remove fan connector
Remove entire fan control sheet
Thermistor
Remove thermistor connector
Remove entire thermistor sheet
Add jumpers near AND gate to skip it
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