Abstract
The design and performance of a simple resonant tank circuit, sine-wave, constant current source switching power supply are described. On the basis of a simplified circuit model, the main equations describing the operation of the power supply when the load voltage varies with time are evaluated and the general design formulae are presented. A comparison is made between the results given by the exact numerical model of the circuit and the results obtained using the inferred formulae. The circuit diagram of the constructed and investigated 40 kV, 15 mA sine-wave, constant current source switching power supply is given. An efficiency of 92% was measured and the actual parameters agreed within 10% with those calculated beforehand.
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