Voltage supply circuit

Details Voltage supply circuit Voltage supply circuit

1998-07-30

2000-03-14

Wong, Peter S.

Electricity: power supply or regulation systems

Input level responsive

307 66, G05F 112

Patent

active

060377615

ABSTRACT:
A voltage supply circuit for a CPU of a programmable controller is provided, the CPU receiving via the voltage supply circuit at least two supply voltages obtained from an input voltage. The circuit operates in a manner such that when the input voltage is increased from an open-circuit potential, a first supply voltage is received by the CPU as soon as the input voltage exceeds an upper input voltage threshold value. The second supply voltage is received by the CPU when the first supply voltage exceeds a primary supply voltage threshold value. When the input voltage decreases from a value (where both supply voltages are received by the CPU), the second supply voltage is no longer received by the CPU when the input voltage and drops below a lower input voltage threshold value, and also the first supply voltage is no longer received by the CPU as soon as the second supply voltage drops below a secondary supply voltage threshold value.

REFERENCES:
patent: 5739596 (1998-04-01), Takizawa et al.
Amphein et al., Neue Kompakterate runden SPS-Spektrum ab, Engineering & Automation 13, 1991, H.2, S. 4-7 * no month ava.

Affiliated with

Also associated with

Rating

Voltage supply circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-172786