chemelec
Well-Known Member
Back in the TUBE DAYS, Full Wave Bridges were Not Common.
Solid State Rectifiers Did Not Exist.
Most Rectifiers were "Tubes" or "Selenium" Rectifiers.
And these rectifier have a Somewhat HIGH Internal Resistance to the Flow of Current.
When you Rectify AC, The DC Output Voltage is 1.414 Times the input RMS Voltage.
The DC Output Current is 0.707 of the input AC Current.
Solid State Rectifier DO NOT have this High resistance to this flow of Current.
So When using the Circuit Above with Solid State Rectifiers You should put a Low Value Resistor in Series with each of these two Diodes, (Like between 10 t0 47 Ohms should be OK) to Reduce INRUSH Current that charges the Filter Cap.
You Don't say Where you Live?
But if you want to Talk, Possibly I could Phone you and explain this in Greater Detail.
(I have Free calling to Many countries)
Hope This Helps you!
Gary
Solid State Rectifiers Did Not Exist.
Most Rectifiers were "Tubes" or "Selenium" Rectifiers.
And these rectifier have a Somewhat HIGH Internal Resistance to the Flow of Current.
When you Rectify AC, The DC Output Voltage is 1.414 Times the input RMS Voltage.
The DC Output Current is 0.707 of the input AC Current.
Solid State Rectifier DO NOT have this High resistance to this flow of Current.
So When using the Circuit Above with Solid State Rectifiers You should put a Low Value Resistor in Series with each of these two Diodes, (Like between 10 t0 47 Ohms should be OK) to Reduce INRUSH Current that charges the Filter Cap.
You Don't say Where you Live?
But if you want to Talk, Possibly I could Phone you and explain this in Greater Detail.
(I have Free calling to Many countries)
Hope This Helps you!
Gary