POWER TRANSFORMING DEVICE WITH A POWER-SAVING CIRCUIT LOOP
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Jun 21, 2013
filing date -
Jun 21, 2013
priority date (Note) -
Abandoned
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Abstract
A power transforming device with a power-saving circuit loop is connected between a voltage source and an electric/electronic appliance, and has a micro-controller unit (MCU), a mode-switching circuit, a conversion circuit, and an output circuit. The mode-switching circuit has a switching element. The conversion circuit has an isolating element and a winding. The isolating element and one end of the winding are connected to the switching element. The output circuit has a switching element having one contact connected with the winding and another contact connected with the switching element of the mode-switching circuit. The MCU controls the isolating element and the switching elements to boost or buck down an input voltage according to the value of the input voltage, and directly outputs the input voltage without additionally consuming energy when voltage transforming operation is not required.
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