Title:
コンデンサ充電器の制御装置及び方法
Document Type and Number:
Japanese Patent JP4297832
Kind Code:
B2
Abstract:
In a capacitor charger, a transformer has a primary winding connected between an input voltage and a switch for generating a primary current flowing through the primary winding by switching the switch to thereby induce a secondary current flowing through a secondary winding of the transformer and a secondary voltage tapered from the secondary winding, a control apparatus and method adjusts the on-time period for the switch in response to the input voltage. The charging time and charging current are independent of the input voltage, and there is no power loss resulted from current sense to the primary current.
Inventors:
White dragon
Red crown
Yellow Shun
Liu Jing Mo
Red crown
Yellow Shun
Liu Jing Mo
Application Number:
JP2004135361A
Publication Date:
July 15, 2009
Filing Date:
April 30, 2004
Export Citation:
Assignee:
Richtek Technology Corporation
International Classes:
H02M3/28; H02J1/00; H02M3/335; H05B41/30; H05B41/32
Domestic Patent References:
| JP2276472A | ||||
| JP6153496A | ||||
| JP2001339258A | ||||
| JP2003284329A | ||||
| JP11220877A | ||||
| JP2002125367A |
Attorney, Agent or Firm:
▲吉▼川 俊雄
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