Voltage converting apparatus with low power consumption
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United States of America Patent
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May 5, 2015
Grant Date -
Jan 30, 2014
app pub date -
Sep 14, 2012
filing date -
Jul 27, 2012
priority date (Note) -
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Abstract
A voltage converting apparatus is disclosed. The voltage converting apparatus includes a pulse width modulation (PWM) signal generating circuit, a power transistor, a first inductor, a second inductor and a feedback rectifier. The PWM signal generating circuit receives a feedback power to be an operating power and generates a PWM signal. A first terminal of the power transistor receives an input voltage, and a control terminal of the power transistor receives the PWM signal. The second inductor couples with a voltage on the first inductor and generates a coupling voltage. The feedback rectifier rectifies the coupling voltage to generate a feedback power.
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