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24.22.235.48
In Reply to: RE: How to set up a 274b rectifier posted by DAK on October 10, 2014 at 14:11:48
The actual requirement is to limit the peak repetitive current. You can model the PSU in PSUD to find this, though it does not contain a specific 274A/B model. I see no spec in the 1936 data sheet 274A) but the VadeMecum page says 525mA peak current. PSUD gives me 505mA with 4uF at 450+450v, 180+180 ohms per diode, 150mADC output, and using the 5V4G.
Follow Ups:
Not turn on surge current. That's a different matter.
Question, will a huge value C1, in a critical choke input filter cause high peak repetitive currents?
BTW, I'm not advocating the use of a huge value C1.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
If the choke has critical or greater inductance, then the current through the choke (and hence the rectifier) is roughly a sine wave superimposed on a steady bias. The current then is always more than zero and less than twice the average current. The following capacitor does not have any effect on this.
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