Do you connect 10k NTC for thermal protect or 10k resistor instead NTC, 1uF capacitor is for turn on delay do not remove but use 4,7uF to increase time to 5 sec.
Yes i have used 10k NTC when i insert 1uF capacitor the relay is switching on/off/on/off......when i remove its stopping and working fine with DC protect and thermal protect except turn on delay
I have checked it by giving 2vdc by DMM
and used solder for ntc
turn on delay is not working
i have inserted in the speaker box with the amplifier so for the images i have to remove the cover again
expect turn on delay remaining is perfect so i have kept it inside confidently
Toner transfer
Followed attached image
I posted my problem but no help and compromised having dc protect
I put inside the speaker as the amplifier was fitted in it
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hello,i have an problem.i use microcontroller to switch mosfet(IRF840) in boost converter but when i connect the microcontroller its output decreasing thats why it cannot switch this mosfet.so how can i remove this loading problem,plzIf you had used Lateral Mosfets in the output stage then i guess you could get away with such a simple biasing scheme. Lateral Mosfets have a negative temperature coefficient so they'll tend to reduce quiescent current as they heat up.
IRFP240 & it's complement have a positive temp coefficient (until they are drawing many Amps of current) so they'll conduct more current as they heat up. There is no allowance for this in your circuit diagram, you'd need something similar to what is used in a transistorised output stage.
I might be wrong, but i don't think so
hello,i have an problem that to switch mosfet(IRF840) in boost converter by microcontroller .when i connect the microcontroller to mosfet thats the output of the microcontroller out put goes to 5v to 2.5 v(apporiximately) due to loading effect.how can i remove this loading problem.plz anyone