jep_pogi
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power supply problem
hello im sorry this is long. please read and help me sir/mam
i am going to build an 80Vdc 2A or 3A linear regulated power supply
right now i have the following initial design.
i used simetrix to simulate the circuit.
i used a 220VAC sine wave generator as input signal (e.g.from the wall sockets) because when i use the AC signal, it has errors. so i use 220VAC 60Hz sine wave generator as input in the transformer. the 1ohm resistor in series with the input is i am not sure about it. i used 1 ohm because when i use higher value, it has a nonsense output.
the secondary side of the transformer outputs 85VAC.
here is the circuit
Can you help me with this circuit, tell me what problems i may have.
The circuit outputs almost 80V and 3A.
it shows it here
CURRENT OUTPUT:
VOLTAGE OUTPUT:
Right now my problem is that there are very high current spikes in the input, just before the diode bridges. the spikes last for 4ms, and has a value of 200A in the beginning and 30A in steady state. I REALLY DONT KNOW IF THIS IS A PROBLEM but im scared to make the circuit in a box if im not really sure about it.
CURRENT SPIKES BEFORE THE DIODE BRIDGE:
hello im sorry this is long. please read and help me sir/mam
i am going to build an 80Vdc 2A or 3A linear regulated power supply
right now i have the following initial design.
i used simetrix to simulate the circuit.
i used a 220VAC sine wave generator as input signal (e.g.from the wall sockets) because when i use the AC signal, it has errors. so i use 220VAC 60Hz sine wave generator as input in the transformer. the 1ohm resistor in series with the input is i am not sure about it. i used 1 ohm because when i use higher value, it has a nonsense output.
the secondary side of the transformer outputs 85VAC.
here is the circuit
Can you help me with this circuit, tell me what problems i may have.
The circuit outputs almost 80V and 3A.
it shows it here
CURRENT OUTPUT:
VOLTAGE OUTPUT:
Right now my problem is that there are very high current spikes in the input, just before the diode bridges. the spikes last for 4ms, and has a value of 200A in the beginning and 30A in steady state. I REALLY DONT KNOW IF THIS IS A PROBLEM but im scared to make the circuit in a box if im not really sure about it.
CURRENT SPIKES BEFORE THE DIODE BRIDGE: