Title:
SHORT-CIRCUIT
Document Type and Number:
Japanese Patent JP3467851
Kind Code:
B2
Abstract:
PURPOSE: To provide a short-circuit to be used in various kinds of electronic devices by solving a problem that the short-circuit cannot be used repeatedly because when a switching element is turned on, a short current flows into the switching element from a DC power source to break the switching element.
CONSTITUTION: A field effect transistor 8 is connected across the output terminals of a DC power source 6, while a control circuit for turning ON/OFF the field effect transistor 8 is provided via a diode 9 between the positive terminal and the field effect transistor 8. Therefore, an output voltage protection capacitor is connected to the control circuit so that the field effect transistor 8 does not generate thermal breakdown at the rising and falling edge when the field effect transistor 8 is ON, a diode 15 is connected between the capacitor 10 and the negative terminal of the DC power source 6 and a protection capacitor 11 when the output voltage rises is connected in series to the diode 9 connected to the positive terminal 11.
Inventors:
Noboru Hanaguchi
Tatsuhiro Hanada
Shigenobu Maeda
Tatsuhiro Hanada
Shigenobu Maeda
Application Number:
JP17548194A
Publication Date:
November 17, 2003
Filing Date:
July 27, 1994
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H02H3/08; H02M3/00; (IPC1-7): H02H3/08
Domestic Patent References:
| JP6169524A | ||||
| JP5267932U | ||||
| JP2122533U |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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