Electronics > Beginners
10 Amps power supply with LM723
LaserTazerPhaser:
--- Quote from: Wolfgang on November 04, 2018, 12:40:02 am ---The ARRL (American Radio Relay League) has some 30V/10A supply suggestions.
Important things are:
- adequate cooling (fan)
- bridge rectifier with sufficient current loading capability (20A min)
- 4 x 2N3055
- frequency compensation (see ARRL schematics)
- overtemp protection
- output crowbar to protect your load if something goes wrong.
http://www.dd1us.de/Downloads/an%20rf%20proof%2030%20amps%20power%20supply%201_0.pdf
--- End quote ---
Power supply doesen't need stud diode heatsinks, D1 & D2 studs can be replaced with a few ganged high efficiency schottkies dpak or other smt parts.
Aren't electrolytics inappropriate for mains side applications?
ArthurDent:
LaserTazerPhaser - "Aren't electrolytics inappropriate for mains side applications?"
The capacitors you marked are not polarized. The curved electrode generally indicates outside foil. There is no + or - that you would see on electrolytics. Check the values and you'll see they can't be electrolytics.
mike_mike:
--- Quote from: xavier60 on September 22, 2019, 09:13:28 pm ---More: I'd be curious to know what the current gain measures when you receive the 2N5551 and 2N5401 transistors.
--- End quote ---
hFE for 2N5401 is 180 and for 2N5551 is 163.
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