Current sensing circuitry
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 10, 1981
Issued Date -
N/A
app pub date -
Jul 28, 1978
filing date -
Jul 28, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A current sensing circuit arrangement for controlling the response of a circuit electrically isolated from the circuit in which sensed current is flowing. The input portion of the circuit arrangement provides paths for D.C. input current, one through a current sensing element and another through a light emitting diode circuit. The current-to-voltage characteristic of the current sensing element is such that changes in voltage across the element are substantially less than proportional to changes in current through the element. The light emitting diode circuit is connected in parallel with the current sensing element and produces light energy dependent on the voltage across the element. Light energy so produced is received by an electrically isolated light sensitive semiconductor device which device is for controlling the response of an output control circuit.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully