Current switch for high voltage process

Details Current switch for high voltage process Current switch for high voltage process

2008-04-08

2010-10-05

Lam, Tuan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S539000, C327S108000

Reexamination Certificate

active

07808304

ABSTRACT:
In a current switch, a bias generation circuit electrically connected to a high voltage power supply generates a bias current. The bias current is mirrored by a current mirror containing a first plurality of transistors to a first one of a second plurality of transistors. The first one of the second plurality of transistors amplifies the mirrored bias current and transmits the amplified bias current to a second one of the second plurality of transistors. The second one of the second plurality of transistors sinks the amplified bias current into a node shared by an internal reference voltage, thereby putting the node in a first logic state. A third one of the second plurality of transistors receives the amplified bias current from the second one of the second plurality of transistors and sinks the amplified bias current into a node shared by a gate of a high voltage p-type transistor, thereby putting the node in the first logic state. Putting both nodes in the first logic state turns off the high voltage transistor.

REFERENCES:
patent: 7215180 (2007-05-01), Nagata et al.
patent: 7352216 (2008-04-01), Hershbarger
patent: 7535285 (2009-05-01), Colman
patent: 2009/0108919 (2009-04-01), Ogiwara et al.
patent: 2009/0206919 (2009-08-01), Imtiaz

Affiliated with

Also associated with

Rating

Current switch for high voltage process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current switch for high voltage process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current switch for high voltage process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4211757