Digital feedback power supply

Details Digital feedback power supply Digital feedback power supply

1997-11-24

1999-10-19

Riley, Shawn

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323284, G05F 140

Patent

active

059695145

ABSTRACT:
A digital feedback power supply circuit capable of adjusting the flow of power to a load includes a switching array having a plurality of switches. Each of the plurality of switches is individually controlled by a control circuit. A monitoring circuit measures the output voltage level at an output node and sends this measured output voltage to the control circuit as a feedback signal. The control circuit then compares the measured output voltage level with a reference voltage value. Based on this comparison, the control circuit determines how many of the switches contained in the switching array need to be active to satisfy the power drawn by the load. When the load requires more power, the control circuit sends control signals to turn ON a particular number of inactive switches to satisfy the power drawn by the load. In contrast, when the load requires less power, the control circuit sends control signals to turn OFF a particular number of active switches so that no more than the required power is delivered to the load.

REFERENCES:
patent: 4309088 (1982-01-01), Uchida et al.
patent: 4935740 (1990-06-01), Schouwenhaars et al.
patent: 5200692 (1993-04-01), Krinsky et al.
patent: 5444610 (1995-08-01), Gaudreau et al.
patent: 5481178 (1996-01-01), Wilcox et al.

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