12V to 250V Converter


A very simple portable
12 to 250V converter can be designed using this circuit diagram. This 12
to 250V converter is designed for portable use with a 12 V car
battery.A built astabil multivibrator T1 and T2 generates a rectangular
wave at a frequency of 50 Hz. As T1 and T2 drive alternative exit stage
system also works in “push-pull”. When T1 lead by passing a current T3:
T5 and that it engages the latter transistor connects to a half battery
of 12 V secondary winding of the transformer Tr When T2 network drive,
T6 transistor coupled to the battery the other half of the network
adapter.

12V to 250V Converter

12V to 250V Converter

If it is used for output stages 40 411 RCA
transistors, the current through secondary winding can be up to 10 A,
giving a power output of 180 watts. If you use 2N3055 transistors, power
output will be about 90 watts. Since the output transistors are driven
to saturation, they have very high mounted radiators.Although circuit is
simple construction and has high efficiency disadvantage is rectangular
output voltage which, in the absence of a regulator is dependent on
task: small loads, the output voltage is 250 V ac (not working properly
for the engine speed control, light dimmers, televisions, hi-fi
equipment.

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