Title:
SWITCHING POWER SOURCE APPARATUS
Document Type and Number:
Japanese Patent JPH06105542
Kind Code:
A
Abstract:
PURPOSE: To reduce the deviation in overcurrent protective starting point due to the variation in input voltage.
CONSTITUTION: A part in which a correction resistor 20 and a zener diode 22 are connected in series is connected between a joint of a MOSFET 4 serving as a switching device and a resistor 6 and the opposed side of the MOSFET 4 of a primary winding 2a of a transformer 2 in a direction in which the zener diode 22 is reversely biased.
Inventors:
TANI RYUTA
NAKAHIRA KOJI
NAKAHIRA KOJI
Application Number:
JP27784292A
Publication Date:
April 15, 1994
Filing Date:
September 22, 1992
Export Citation:
Assignee:
MURATA MANUFACTURING CO
International Classes:
H02M3/28; (IPC1-7): H02M3/28
Attorney, Agent or Firm:
Keiji Yamamoto