guestn6600
New Member
Hi.
i made a psu for my friend's small fridge. the circuit is attatched.
the problem is when i checked the output with dmm, it shows 10 volts without load. and it showed 18 volts when i connect to the fridge.
the fridge didnt run cos protected by a overvoltage protection ckt.
another problem is when i try to power a peltier module for about 30 minutes both of the diode bridge getting warm. but the diode bridge is rated at 10 amps each and the peltier only draws 2.5 amps. any explainations?
the reason i use two transformer is 2 small transformer is cheaper than 1 big transformer.
any explaination would be appretiated. thanks
i made a psu for my friend's small fridge. the circuit is attatched.
the problem is when i checked the output with dmm, it shows 10 volts without load. and it showed 18 volts when i connect to the fridge.
the fridge didnt run cos protected by a overvoltage protection ckt.
another problem is when i try to power a peltier module for about 30 minutes both of the diode bridge getting warm. but the diode bridge is rated at 10 amps each and the peltier only draws 2.5 amps. any explainations?
the reason i use two transformer is 2 small transformer is cheaper than 1 big transformer.
any explaination would be appretiated. thanks