Title:
スイッチング電源回路部
Document Type and Number:
Japanese Patent JP4204115
Kind Code:
B2
Abstract:
Switched-mode power supplies require a power factor correction circuit in order to comply with anticipated regulations for the harmonic load on the line network. The object is to specify a switched-mode power supply of this type, which operates reliably over a wide input voltage range. In its second current path (I2), which produces a connection between a rectifier element (BR) and a tap (A) on the primary winding (W1) of a transformer (TR), the switched-mode power supply contains a capacitor (C19) which produces current limiting for an inductance (L19) in this current path. When the switching transistor (T60) is in the switching mode the inductance (L19) is charged, when the switching transistor (T60) is switched on, in the sense of an energy store until the capacitor (C19) is charged. When the switching transistor (T60) is switched off, the inductance (L19) and the capacitor (C19) are discharged via a diode (D18) in the direction of an energy-storage capacitor (C20). Particular applications include television sets and similar consumer electronics equipment.
Inventors:
Michael Mitzner
Jean-Paul Louvre
Jean-Paul Louvre
Application Number:
JP30856298A
Publication Date:
January 07, 2009
Filing Date:
October 29, 1998
Export Citation:
Assignee:
Deutsche Thomson-Brandt GmbH
International Classes:
H02M3/28; H02M1/00; H02M1/12; H02M1/14; H02M1/40; H02M1/42; H02M3/335
Domestic Patent References:
| JP8080032A | ||||
| JP6217535A | ||||
| JP6500226A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Reinhard Einsel
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