Three state switch detection using current sensing

Details Three state switch detection using current sensing Three state switch detection using current sensing

1996-09-13

1998-02-03

Ro, Bentsu

Electricity: motive power systems

Plural diverse motor controls

Motor-reversing

318280, 318112, 318543, H02P 122

Patent

active

057148520

ABSTRACT:
A three state switch detection circuit converts a three state input to a two-bit binary output readable by a micro-controller or other digital logic. The circuit utilized complementary NPN and PNP transistors having coupled emitters and coupled bases connected by a resistor. The collector of the PNP transistor is connected by a resistor to ground while a complementary resistor ties the collector of the NPN transistor to V.sub.BATT. Additional circuitry preferably converts the voltage output from the collectors to a suitable voltage level readable by the micro-controller or other digital logic device.

REFERENCES:
patent: 3229181 (1966-01-01), Evans
patent: 3305718 (1967-02-01), Waldron
patent: 3731170 (1973-05-01), Emmert
patent: 3748557 (1973-07-01), Mittelstaedt
patent: 4476416 (1984-10-01), Licata et al.
patent: 4896084 (1990-01-01), Maue et al.
patent: 5369343 (1994-11-01), Niemela

Affiliated with

Also associated with

Rating

Three state switch detection using current sensing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Three state switch detection using current sensing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three state switch detection using current sensing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-665692