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Patent Searching and Data


Title:
PULSATING VOLTAGE MONITOR CIRCUIT
Document Type and Number:
Japanese Patent JPS5717866
Kind Code:
A
Abstract:

PURPOSE: To implement good follow-up capability and precise monitor of a pulsating voltage by counting AND output between V/F conversion output of input voltage and a pulse of a pulsating cycle of the input voltage.

CONSTITUTION: A counter E is reset by a data processing part D and then control instruction is sent to a programmable one-shot pulse generator circuit C from the data processing part D, to make it generate a pulse in a pulse width corresponding to one cycle of pulsation of the input voltage 1. Then, the output of a V/F convertor A and the output of the pulse generator circuit C are applied to an AND circuit B, and this logical AND output is added to a counter E. A mean value of the input voltage 1 is found from the counting number of this counter E. Thus, a mean voltage pulsating signals can be simply and promptly obtained eliminating the effect of pulsating.


Inventors:
HONMA EIJIYU
Application Number:
JP1980000094656
Publication Date:
January 29, 1982
Filing Date:
July 08, 1980
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G01R19/02; G01R19/252; (IPC1-7): G01R19/02