All Questions
3 questions
1
vote
2
answers
837
views
Capacitor amplifying voltage in bridge rectifier
I made a bridge rectifier using 4 1N4007 diodes, a capacitor filter with capacitance of 470 micro farad (25V), and a resistance of 1k ohm as a bleeder resistor and a step down transformer with ...
0
votes
2
answers
3k
views
tube amplifier build power supply design
Hello Im just starting to work with valves but have a question on the power supply side. The question is the amplifier I am building needs 300 VDC. As I understand voltage after bridge rectifiers ...
1
vote
2
answers
4k
views
Circuit diagram for uninterrupted usage of a 12V 1A device using 12V 7Ah battery with auto charging and full charge cut off
I have a modem which runs at 12V 1A, also I have an UPS battery of 12V 7Ah. I need to design a circuit so that during power outages my modem works from the battery.
Also, a circuit to charge the ...