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INVERTER DEVICE AND CONTROLLING METHOD THEREOF

  • US 20170272005A1
  • Filed: 02/02/2017
  • Published: 09/21/2017
  • Est. Priority Date: 03/16/2016
  • Status: Active Grant
First Claim
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1. An inverter device electrically connected to a direct current source, comprising:

  • a first stage circuit electrically connected to the direct current source and comprising a first switch module and a charge-discharge module, wherein the first switch module is electrically connected to the charge-discharge module;

    a second stage circuit electrically connected to the first stage circuit and an AC output terminal and comprising a second switch module and a filter module, wherein the second switch module is electrically connected to the filter module; and

    a control module electrically connected to the first switch module and the second switch module, and outputting a first control signal for controlling the first switch module to turn on/off and a second control signal for controlling the second switch module to turn on/off;

    wherein the control module obtains an input current from the first stage circuit, and adjusts the input current according to a predetermined current value, and the control module obtains an output power from the AC output terminal and adjusts the duty cycle of the first control signal according to the output power and a predetermined output power.

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