Energy retrieving device
AssigneeFoxnum Technology Co., Ltd.
InventorsCHING-HSIUNG MAO, CHIH-JUNG LIU
Life of this patent
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Abstract
An energy retrieving device includes a first rectifier circuit, a direct current (DC) link circuit, a second rectifier circuit, an energy retrieving unit, a motor controller, and a micro control unit (MCU). The MCU includes an energy retrieving control module, to control the energy retrieving unit to work according to control of a processing module. The processing module detects whether a motor deceleration signal is generated by the motor, and controls the energy retrieving control module to make the energy retrieving unit retrieve power when the motor deceleration signal is generated by the motor.
Claims4
An energy retrieving device for retrieving power from a motor, comprising,
- a first rectifier circuit, to be connected to a power source to receive three-phase alternating current (AC) from the power source, and convert the three-phase AC to direct current (DC);
- a DC link circuit, to receive the DC from the first rectifier circuit and transmit the DC to the second rectifier circuit;
- a second rectifier circuit, to receive the DC from the DC link circuit and convert the DC to AC;
- an energy retrieving unit, connected between the first rectifier circuit and the second rectifier circuit;
- a motor controller, to control the second rectifier circuit to drive a motor;
- and
- the MCU further comprising:
- an energy retrieving control module, to control the energy retrieving unit to work according to control of a processing module;
- and
- the processing module, to detect whether a motor deceleration signal is generated by the motor, and control the energy retrieving control module to make the energy retrieving unit retrieve power when the motor deceleration signal is generated by the motor.
Dependencies are inferred from the claim text.