Title:
共振形電源装置
Document Type and Number:
Japanese Patent JP6684637
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a resonance type power supply unit capable of achieving miniaturization and cost reduction.SOLUTION: The resonance type power supply apparatus, applying a pulse-like voltage to a transformer and a resonant element by switching an input voltage with a primary switching element and performing switching with a secondary switching element to control an output voltage, includes a control function that sets a command value of an output voltage to be not more than a fraction of a transformer winding ratio of an amplitude of the pulse-like voltage, acquires a switching frequency during a preset period and corrects a gate signal of a secondary switching element on the basis of the acquired switching frequency.SELECTED DRAWING: Figure 1
Inventors:
Takuya Ishigaki
Takanori Ohashi
Takato Masato
Watanabe
Uei Yusuke
Takanori Ohashi
Takato Masato
Watanabe
Uei Yusuke
Application Number:
JP2016083045A
Publication Date:
April 22, 2020
Filing Date:
April 18, 2016
Export Citation:
Assignee:
Hitachi Industrial Equipment Systems Co., Ltd.
International Classes:
H02M3/28
Domestic Patent References:
| JP2014217199A | ||||
| JP8266050A | ||||
| JP2005168167A |
Foreign References:
| WO2015004989A1 |
Attorney, Agent or Firm:
Aoritsu patent business corporation