Control circuit with a single control input for controlling DC a

Details Control circuit with a single control input for controlling DC a Control circuit with a single control input for controlling DC a

1998-06-15

2000-02-01

Berhane, Adolf Deneke

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323315, G05F 110

Patent

active

060207280

ABSTRACT:
A control circuit for controlling a DC current and an AC current through an acoustic transducer such as a ringer or a buzzer in a telephone. The control circuit comprises a current controlled output stage with an output terminal for the acoustic transducer, and a driver transistor of which a main current path drives the output stage. The driver transistor has a single control input for controlling both the DC current and the AC current through the acoustic transducer.

REFERENCES:
patent: 4914317 (1990-04-01), Agiman
patent: 5469047 (1995-11-01), Kumamoto et al.
patent: 5535085 (1996-07-01), Tanaka et al.
patent: 5774013 (1998-06-01), Groe
By Philips Application Handbook IC 03B, p. 1180 , Jul. 1996.

Affiliated with

Also associated with

Rating

Control circuit with a single control input for controlling DC a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control circuit with a single control input for controlling DC a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control circuit with a single control input for controlling DC a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-940333