Power-on clearing circuit in semiconductor IC

The pulse generator is provided in a semiconductor integrated circuit device, in the form of a power-on clearing circuit. The generator is comprised of a capacitor chargeable to produce a power-on clearing pulse, a current-flow regulating element for regulatively charging the capacitor to output a s...

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Bibliographic Details
Main Author UEDA; CHIHARU
Format Patent
LanguageEnglish
Published 15.12.1992
Subjects
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
PULSE TECHNIQUE
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Summary:The pulse generator is provided in a semiconductor integrated circuit device, in the form of a power-on clearing circuit. The generator is comprised of a capacitor chargeable to produce a power-on clearing pulse, a current-flow regulating element for regulatively charging the capacitor to output a state signal, and a voltage detector operative in an active condition for monitoring a level of a rising power source voltage to control the current-flow regulating element and being responsive to the state signal to switch to a rest condition. By such construction, a power-on clearing pulse is stably generated regardless of a rising rate of the power source voltage while eliminating a current consumption after completion of the generation of the power-on clearing pulse.
Bibliography:Application Number: US19910717410