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Title:
PULSE GENERATING CIRCUIT
Document Type and Number:
Japanese Patent JPS5813026
Kind Code:
A
Abstract:

PURPOSE: To prevent a breakdown due to the backward voltage at a collector terminal, by connecting a diode in its forward direction to the collector of a transistor (TR) which drives a capacitive load.

CONSTITUTION: When a pulse generation command is applied to an input terminal P1, a TR3 turns on and a TR4 turns off, generating a positive pulse at a point Q1. At this time, the positive pulse is applied to a point Q2 as well, but a diode D2 turns off, so a TR6 is not broken down. When the pulse generation command is supplied to an input terminal P2, a TR5 turns on and the TR6 turns off to generate a negative pulse at the point Q2. At this time, a diode D1 turns off to prevent the TR4 from being broken down. A capacitive load is connected to a point A.


Inventors:
Samejima, Kazuhiro
Tomura, Koichi
Application Number:
JP1981000111625
Publication Date:
January 25, 1983
Filing Date:
July 16, 1981
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G06K15/14; H03K5/00; H03K17/0814; H03K17/66; (IPC1-7): G06K15/14; H03K5/00; H03K17/66
Domestic Patent References:
JP55109952B
JPS4933548A
JPS5370754A
JPS5676630A