Latching relay circuits and analog to digital converters

Details Latching relay circuits and analog to digital converters Latching relay circuits and analog to digital converters

1978-09-18

1981-06-02

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural ranges, scales or registration rates

324 99D, 340347AD, 361208, G01R 1508, H01H 5122, H03K 1302

Patent

active

042713927

ABSTRACT:
The variable attenuator and variable current shunt of a battery-powered auto-ranging digital multimeter uses latching relays, each of which, since it is stable in each of its two switching states, requires only a current pulse to change its state. The circuit which operates the relays provides a drive pulse only when the desired relay state differs from the actual state, thus minimizing the power required, and includes a tank circuit for minimizing disturbance to the multimeter power supply. To ensure that the tank circuit can recharge, each relay is driven by a tri-state output.

REFERENCES:
patent: 2661260 (1953-12-01), Salzman, Jr.
patent: 2859402 (1958-11-01), Schaeve
patent: 2973238 (1961-02-01), Herzog
patent: 2993157 (1961-07-01), Bradley, Jr.
patent: 3237102 (1966-02-01), Newell
patent: 3544850 (1970-12-01), Casson

Affiliated with

Also associated with

Rating

Latching relay circuits and analog to digital converters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Latching relay circuits and analog to digital converters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latching relay circuits and analog to digital converters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1867414