Title:
【発明の名称】出力電圧補償回路
Document Type and Number:
Japanese Patent JP2886845
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To compensate the output voltage of a rectifying and distributing section 100, by performing half-wave rectification of the supply voltage, dividing the rectified voltage, comparing the divided voltage with the reference voltage and negatively feeding back the output voltage. SOLUTION: The anode terminal of a diode D2 is connected to one input terminal of a normal power supply AC, and first and second resistors R11 and R12 are connected in series between the cathode terminal of the diode D2 and ground. Then, a rectifying and distributing section 100 is constituted by connecting the second resistor R12 and a capacitor C2 in parallel. The section 100 outputs a voltage Vinput which is obtained by dividing a normal power supply voltage VAC by performing half-wave rectification to a comparing section 40, and the section 40 negative-feedback amplifies the output voltage Vinput by comparing the voltage Vinput with a prescribed reference voltage Vref . Therefore, the output voltage Vinput can be compensated.
Inventors:
JON BYUNNJO
Application Number:
JP12228197A
Publication Date:
April 26, 1999
Filing Date:
May 13, 1997
Export Citation:
Assignee:
ERU JII DENSHI KK
International Classes:
H02M7/06; G05F1/10; H02J3/12; H02M1/12; H03F3/45; (IPC1-7): G05F1/10; H02M7/06
Domestic Patent References:
| JP60103420A | ||||
| JP5265840U |
Attorney, Agent or Firm:
Takashi Ishida (3 others)