DC input circuit with controlled leakage current

Details DC input circuit with controlled leakage current DC input circuit with controlled leakage current

1991-01-18

1992-05-05

LaRoche, Eugene R.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307318, 307363, 307571, H03K 342, H03K 1772

Patent

active

051110709

ABSTRACT:
A DC input circuit provides a digital output dependent on an input voltage spanning a low range and a high range. A first transistor current source provides a bounded leakage current for a low range voltage. A parallel transistor current source in series with a voltage breakdown diode provides a second constant current path for high range voltages through a current sensitive switch. The total input current is thus limited, thereby reducing heat dissipation.

REFERENCES:
patent: 4027235 (1977-05-01), Macrander et al.
patent: 4031417 (1977-06-01), Wesner
patent: 4346375 (1982-08-01), Billings
patent: 4507571 (1985-03-01), Callan
patent: 4513209 (1985-04-01), Tanabe et al.
patent: 4682061 (1987-07-01), Donovan
patent: 4745311 (1988-05-01), Iwasaki
patent: 4906055 (1990-03-01), Horiuchi

Affiliated with

Also associated with

Rating

DC input circuit with controlled leakage current does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DC input circuit with controlled leakage current, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC input circuit with controlled leakage current will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1414553