Power supply circuit » TIC216 http://apowersupply.com Sat, 19 May 2012 07:51:49 +0000 en hourly 1 http://wordpress.org/?v=3.1 AC DC Converter Circuit http://apowersupply.com/ac-dc-converter-circuit-263.html http://apowersupply.com/ac-dc-converter-circuit-263.html#comments Wed, 02 May 2012 01:00:23 +0000 aPowerSupply.com http://apowersupply.com/?p=263 This AC to DC converter circuit is capable to convert an alternative voltage from 70 – 260 Vac into a DC voltage from 180 to 250 Vdc.
To achieve this convertion we use a rectifier MC34161 as a voltage doubler at low input voltages and as a classic rectifier at high input voltages.

MC34161 includes a reference power supply which delivers 2.54V at pin 1. The signal level applied at pin 2 is internally compared with a 1.27V voltage.
D5 zener diode, togheter with R1 and C4 provide IC’s required 12V voltage. Capacitor’s voltage of C2 and C3 must be > 250V.

Attention: this ac to dc converter contains very high voltages and you must be careful!

Output DC voltage/Input AC voltage
ac dc voltage table

AC to DC converter circuit diagram

ac dc converter circuit diagram

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