Wasn't sure where to post this question so I posted it here....
I'm now on my 3rd DCtoDC converter.
For some reason the board burns/shorts out at the same spot.
I was hoping someone on here can identify 4 numbered parts. (especially #2)
This way I can try to replace them instead of buying the entire unit.
Thanks in advance.
need help I identifying Electronic parts. Chevy Volt DCtoDC
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need help I identifying Electronic parts. Chevy Volt DCtoDC
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I'll figure this out sooner or later
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Re: need help I identifying Electronic parts. Chevy Volt DCtoDC
Can you mark down readings across all of them in place and verify that the 2 are identical circuits / identical value components? If so, pull the ones off the left side of the burnt image to measure resistance / capacitance.
Just saw the difference edit.
Some could be the same between the circuits but it's probably wise to pull each and measure them.
1 resistor of unknown value
2 resistor of unknown value
3 "103" = 10k https://www.digikey.com/en/resources/co ... istor-code
4 capacitor? Of unknown value
Then https://www.protoexpress.com/kb/differe ... age-sizes/ for the footprint size references.
White body of the resistor means non flammable / fusible resistor. Just means when they fail it's not on fire (for long) or exploding.
Just saw the difference edit.
Some could be the same between the circuits but it's probably wise to pull each and measure them.
1 resistor of unknown value
2 resistor of unknown value
3 "103" = 10k https://www.digikey.com/en/resources/co ... istor-code
4 capacitor? Of unknown value
Then https://www.protoexpress.com/kb/differe ... age-sizes/ for the footprint size references.
White body of the resistor means non flammable / fusible resistor. Just means when they fail it's not on fire (for long) or exploding.
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Re: need help I identifying Electronic parts. Chevy Volt DCtoDC
Thanks!
I'll figure this out sooner or later
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Re: need help I identifying Electronic parts. Chevy Volt DCtoDC
1 and 2 could also be capacitors. The light grey colour suggest COG/NP0 dielectric so could be up to 100nF depending on voltage rating.
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Re: need help I identifying Electronic parts. Chevy Volt DCtoDC
Oh boy...
I guess the only way to figure out if it's a capacitor or resistor is to remove it and measure it....right?
I guess the only way to figure out if it's a capacitor or resistor is to remove it and measure it....right?
I'll figure this out sooner or later
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Re: need help I identifying Electronic parts. Chevy Volt DCtoDC
Do you feed DC directly behind contactors or do you have to turn on main contactor to start dcdc?
I went trough 2 of them and i allways connectedcthem directly to dcdc.
I went trough 2 of them and i allways connectedcthem directly to dcdc.
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Re: need help I identifying Electronic parts. Chevy Volt DCtoDC
DCDC + High Voltage connected to a dedicated contactor then to 20amp breaker then to HV Battery +.
DCDC - High Voltage connected directly to HV battery Negative
Main Contactor(s) (Contactor #1) remains open.
Battery Charger Contactor (Contactor #3) is always open until the AC is connected.
I think the answer to your question is, Yes the DCDC is behind a contactor
DCDC - High Voltage connected directly to HV battery Negative
Main Contactor(s) (Contactor #1) remains open.
Battery Charger Contactor (Contactor #3) is always open until the AC is connected.
I think the answer to your question is, Yes the DCDC is behind a contactor
I'll figure this out sooner or later