PWM Controller with Single Core Multivibrator
説明
A new PWM controller with simple structure is presented. This controller consists of a modified transistor-core multivibrator having a single saturable core and is capable of changing the oscillation frequency with ease by a low control voltage. Accordingly, if this controller is applied to a small DC power supply or a feedback element of the switching regulator, a considerable reduction of the number of components is given in comparison with that of IC type. Furthermore, because the output signal has the nearly constant V/f ratio, the PWM controller is suitable for a simple speed control circuit of the small AC motor.
収録刊行物
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- INTELEC - 1979 International Telecommunications Energy Conference
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INTELEC - 1979 International Telecommunications Energy Conference 258-264, 1979-01-01
IEEE