Current-voltage conversion circuit, current compressing and exte

Electric power conversion systems – Current conversion – Constant current to constant voltage or vice versa

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

323280, H02M 700, G05F 140

Patent

active

055152600

ABSTRACT:
A current-voltage conversion circuit which is capable of performing logarithmic compression is obtained using only CMOS processes. An emitter of a PNP transistor (10) and a current input terminal (51) are connected commonly to a reverse input terminal of an operational amplifier (53), while a first reference voltage input terminal is connected to a non-reverse input terminal of the operational amplifier (53). A collector of the PNP transistor (10) is grounded and a base of the PNP transistor (10) is connected to an output terminal of the operational amplifier (53) and an output terminal (55). A current (I) is supplied to the current input terminal (51) while a first reference voltage (V.sub.REF1) is applied to the first reference voltage input terminal. The PNP transistor (10) is formed by CMOS processes. The current-voltage conversion circuit is manufactured in a shorter manufacturing time and at a reduced cost.

REFERENCES:
patent: 4618814 (1986-10-01), Kato et al.
patent: 5157352 (1992-10-01), Chickanosky, Jr. et al.
patent: 5225766 (1993-07-01), O'Neill
patent: 5324982 (1994-06-01), Nakazato et al.
patent: 5341087 (1994-08-01), Van Leeuwen
patent: 5381082 (1995-01-01), Schlicht

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Current-voltage conversion circuit, current compressing and exte 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-voltage conversion circuit, current compressing and exte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current-voltage conversion circuit, current compressing and exte will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1232138

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.