Title:
CIRCUIT FOR GENERATING ACCURATE ONE SECOND PULSE-WIDTH FOR FREQUENCY COUNTER AND START/STOP TIMING FOR COUNTER
Document Type and Number:
Japanese Patent JP2016046795
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To utilize a common counter as a frequency counter by switching between a circuit for generating an accurate one second pulse and a circuit for generating start/stop timing which is used as a counter, and by initializing the circuit when turning on power.SOLUTION: In a circuit, in order to utilize a common counter as a frequency counter, an accurate one second pulse is generated, and in order to utilize the same as a counter, switching is performed between the counter and the frequency counter. Further, a monostable multivibrator is used in an input stage of the circuit for chattering prevention and waveform shaping, and when turning on power, the circuit is initialized.SELECTED DRAWING: Figure 1
Inventors:
UTSUGIDA MASAHITO
Application Number:
JP2014181698A
Publication Date:
April 04, 2016
Filing Date:
August 21, 2014
Export Citation:
Assignee:
UTSUGIDA MASAHITO
International Classes:
H03K21/02; H03K5/1254
Domestic Patent References:
| JPH0555079U | 1993-07-23 | |||
| JPS5773531A | 1982-05-08 |
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