ELECTRONIC CIRCUITS;
POWER SUPPLY - PULSE WIDTH MODULATION;
D O I:
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摘要:
Switching regulators require a means of turning on the power supply gradually. In power supplies that use pulse-width modulators (PWM) a common method is to allow the pulses out of the PWM to gradually increase until the desired output voltage is reached and then allow the control loop to take over. A typical circuit that accomplishes this is shown which, however, is plagued by a given shortcoming. A circuit that resolves this shortcoming is described.