INVERTER DEVICE AND CONTROLLING METHOD THEREOF
First Claim
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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Accused Products
Abstract
An inverter device comprises a first stage circuit, a second stage circuit and a control module. The first stage circuit comprises a first switch module and a charge-discharge module. The second stage circuit comprises a second switch module and a filter module. The control module outputs 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. The control module obtains an input current from the first stage circuit, and adjusts the input current according to a predetermined current value. In addition, 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.
29 Citations
15 Claims
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1. An inverter device electrically connected to a direct current source, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of controlling an inverter device, wherein the inverter device comprises:
- a first stage circuit, a second stage circuit and a control module;
the first stage circuit electrically connected to a DC power and the second stage circuit, the second stage circuit electrically connected to the first stage circuit and an AC output terminal;
the control module electrically connected to the first stage circuit and the second stage circuit;
wherein the first stage circuit comprises a first switch module and a charge-discharge module, the first switch module is electrically connected to the charge-discharge module, the second stage circuit comprises a second switch module and a filter module, the second switch module is electrically connected to the filter module, wherein the method comprises the following steps;the control module obtaining an input current which flows into the first stage circuit, and adjusting the input current according to a predetermined current value, and the control module obtaining an output power from the AC output terminal, and adjusting the duty cycle of the first control signal according to a predetermined output power and the output power. - View Dependent Claims (14, 15)
- a first stage circuit, a second stage circuit and a control module;
Specification