Title:
SWITCH MODE SOURCE
Document Type and Number:
Japanese Patent JPH02273073
Kind Code:
A
Abstract:
PURPOSE: To suppress overcurrent by providing a transformer having first and second windings, first and second switching means, a capacitor, a first control voltage controlling means and an output supply voltage generating means. CONSTITUTION: The switching mode power source include a transformer T1 having first and second windings W1 , W2 . A switching structure Q2 is connected to a first winding W1 , to generate a first current for energizing the second winding W2 in the first winding W1 . A second switching structure D3 in connected to the second winding W2 and a capacitor C4 to generate a rectified current for generating a first control voltage. The first control voltage is connected to the transformer T1 to generate a second control voltage changing with the first control voltage. The first control voltage is controlled in such a manner that the change of the amplitude of the output supply voltage from a normal value generates the amplified change in the amplitude of the second control voltage.
Inventors:
JIYOBANNI MIKEERE REONARUDEI
Application Number:
JP5627290A
Publication Date:
November 07, 1990
Filing Date:
March 06, 1990
Export Citation:
Assignee:
RCA LICENSING CORP
International Classes:
H04N5/63; H02M3/28; H02M3/335; (IPC1-7): H02M3/28; H04N5/63
Domestic Patent References:
| JPS55125078A | 1980-09-26 |
Attorney, Agent or Firm:
Satoshi Shimizu (2 outside)