Energy-recycling device and direct-current (DC) voltage-boosting device thereof
AssigneesMean Well Enterprises Co., Ltd., Mean Well (Guangzhou) Electronics Co., Ltd., Suzhou Mean Well Technology Co., Ltd.
InventorFanyi Yang
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Abstract
An energy-recycling device and a DC voltage-boosting device thereof is disclosed. The DC voltage-boosting device includes a first phase controller, an interleaved voltage booster, a second phase controller, and a phase-shift voltage converter. The first phase controller generates a first PWM signal and a second PWM signal. The interleaved voltage booster receives an input DC voltage, the first PWM signal and the second PWM signal and increases the input DC voltage to a supplying DC voltage. The second phase controller receives the supplying DC voltage and a setting voltage, thereby generating third PWM signals. The phase-shift voltage converter receives the third PWM signals and the supplying DC voltage and converts the supplying DC voltage into a stable DC voltage.
Claims20
A direct-current (DC) voltage-boosting device comprising:
- a first phase controller configured to receive a constant current, a first feedback current, and a second feedback current and generate a first pulse width modulation (PWM) signal and a second pulse width modulation (PWM) signal according to the constant current, the first feedback current, and the second feedback current, wherein phases of the first PWM signal and the second PWM signal are different from each other;
- an interleaved voltage booster coupled to the first phase controller and configured to receive an input direct-current (DC) voltage, the first PWM signal, and the second PWM signal and output the first feedback current and the second feedback current according to the input DC voltage, the first PWM signal, and the second PWM signal, wherein the interleaved voltage booster is configured to boost the input DC voltage to a supplying direct-current (DC) voltage according to the phases of the first PWM signal and the second PWM signal;
- a second phase controller coupled to the interleaved voltage booster and configured to receive the supplying DC voltage and a setting voltage and generate third pulse width modulation (PWM) signals according to the supplying DC voltage and the setting voltage, wherein the third PWM signals have different phases;
- and
- a phase-shift voltage converter coupled to the interleaved voltage booster and the second phase controller and configured to receive the third PWM signals and the supplying DC voltage and convert the supplying DC voltage into a stable direct-current (DC) voltage according to the different phases of the third PWM signals.
An energy-recycling device, coupled to a mains power grid, comprising:
- a first phase controller configured to receive a constant current, a first feedback current, and a second feedback current and generate a first pulse width modulation (PWM) signal and a second pulse width modulation (PWM) signal according to the constant current, the first feedback current, and the second feedback current, wherein phases of the first PWM signal and the second PWM signal are different from each other;
- an interleaved voltage booster coupled to the first phase controller and configured to receive an input direct-current (DC) voltage, the first PWM signal, and the second PWM signal and output the first feedback current and the second feedback current according to the input DC voltage, the first PWM signal, and the second PWM signal, wherein the interleaved voltage booster is configured to boost the input DC voltage to a supplying direct-current (DC) voltage according to the phases of the first PWM signal and the second PWM signal;
- a second phase controller coupled to the interleaved voltage booster and configured to receive the supplying DC voltage and a setting voltage and generate third pulse width modulation (PWM) signals according to the supplying DC voltage and the setting voltage, wherein the third PWM signals have different phases;
- a phase-shift voltage converter coupled to the interleaved voltage booster and the second phase controller and configured to receive the third PWM signals and the supplying DC voltage and convert the supplying DC voltage into a stable direct-current (DC) voltage according to the different phases of the third PWM signals;
- and
- an inverter coupled to the phase-shift voltage converter and the mains power grid and configured to receive the stable DC voltage, convert the stable DC voltage into an alternating-current (AC) voltage, and transmit the AC voltage to the mains power grid.
Dependencies are inferred from the claim text.