Highly efficient DC/DC converter. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Voltage converters, rectifiers, inverters
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Fig. 1
A simple but highly efficient DC-DC converter (Fig. 1) by J. Wilkinson contains a minimum of elements, but provides several milliamps of current with a voltage of 400 ... 425 V at a current consumption of 80-90 mA from a 9 V source.
On the timer type 555, a multivibrator is made at a frequency of 14 kHz. The efficiency of the device is highly dependent on the quality factor of the coil with an inductance of 1 mH.
Author: J. Wilkinson; Publication: N. Bolshakov, rf.atnn.ru
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