Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1979-10-22
1981-03-31
Gellner, Michael L.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324433, 340636, 354 60E, 354289, G03B 1718, G03B 1738, G08B 2100
Patent
active
042589991
ABSTRACT:
A voltage checking circuit for checking a power source battery whose terminal voltage changes with time at an early stage subsequent to closing the battery load circuit. The checking circuit correctly checks whether the battery is effective or ineffective even while the terminal voltage is changing. To this end, there is provided a voltage generating circuit which is responsive to the change of the power source battery voltage and generates a constant output when a critical effective battery that shows a critical voltage at its steady state, is in use. The voltage generating circuit generates a voltage other than the constant voltage with a battery other than the critical effective battery. Thus, the power source battery is checked in accordance with the output of the voltage generating circuit.
REFERENCES:
patent: 3925771 (1975-12-01), Satake
patent: 4126874 (1978-11-01), Suzuki et al.
Gellner Michael L.
Minolta Camera Kabushiki Kaisha
LandOfFree
Power source voltage checking circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power source voltage checking circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power source voltage checking circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2240336