Title:
インバータ
Document Type and Number:
Japanese Patent JP6832210
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an inverter capable of synchronizing the AC voltage to be output with a commercial AC voltage even when a noise is superimposed on a synchronous signal.SOLUTION: An inverter comprises: a DC/AC conversion unit which converts DC power to AC power; an edge detection unit which detects an edge of the synchronous signal supplied from the outside; a counter which resets a counter value when the edge detection unit detects the edge; a determination unit which determines whether the edge detected by the edge detection unit is normal; a phase calculation unit which calculates a phase of the AC power on the basis of the counter value of the counter; and an output voltage control unit which outputs the AC power of the phase calculated by the phase calculation unit from the DC/AC conversion unit. When the determination unit determines that the edge detected by the edge detection unit is not normal, the phase calculation unit calculates the phase of the AC power on the basis of a correction value obtained by adding a prescribed value to the count value per constant period.SELECTED DRAWING: Figure 3
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Inventors:
Junpei Hayakawa
Takashi Kinoshita
Kimio Iwao
Takashi Kinoshita
Kimio Iwao
Application Number:
JP2017068566A
Publication Date:
February 24, 2021
Filing Date:
March 30, 2017
Export Citation:
Assignee:
Shindengen Industry Co., Ltd.
International Classes:
H02M7/48
Domestic Patent References:
| JP2013198226A | ||||
| JP8126228A | ||||
| JP2012070590A | ||||
| JP10117484A | ||||
| JP4047275A | ||||
| JP7322090A |
Foreign References:
| US20050036253 |
Attorney, Agent or Firm:
Sumio Tanai
Yasushi Matsunuma
Toshio Komuro
Yasushi Matsunuma
Toshio Komuro