Electrical load with preferential source
First Claim
1. A regulator circuit, embedded in a device, which is adapted to draw power from a power source internal to the device and a power source external to the device, said regulator circuit comprising:
- a first circuit segment for regulating power supplied by the internal power source;
a second circuit segment for regulating power supplied by the external power source;
an output circuit segment that monitors the output of the regulator circuit and supplies regulated power to said device; and
wherein responsive to said monitoring said regulator circuit preferentially draws power from said second circuit segment and complements the drawn power with power from said first circuit segment to maintain a regulated power supply at said output.
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Accused Products
Abstract
A regulator circuit, embedded in a device, which is adapted to draw power from a power source internal to the device and a power source external to the device. The regulator circuit includes a first circuit segment for regulating power supplied by the internal power source, a second circuit segment for regulating power supplied by the external power source, an output circuit segment that monitors the output of the regulator circuit and supplies regulated power to the device. Additionally, responsive to the monitoring the regulator circuit preferentially draws power from the second circuit segment and complements the drawn power with power from the first circuit segment to maintain a regulated power supply at the output.
96 Citations
22 Claims
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1. A regulator circuit, embedded in a device, which is adapted to draw power from a power source internal to the device and a power source external to the device, said regulator circuit comprising:
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a first circuit segment for regulating power supplied by the internal power source;
a second circuit segment for regulating power supplied by the external power source;
an output circuit segment that monitors the output of the regulator circuit and supplies regulated power to said device; and
wherein responsive to said monitoring said regulator circuit preferentially draws power from said second circuit segment and complements the drawn power with power from said first circuit segment to maintain a regulated power supply at said output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of powering a device from an internal and external power source while conserving charge of the internal power source, comprising:
- regulating the power supplied by the internal power source and the external power
source;
monitoring the power supplied for powering the device;
attempting to draw all the power required by the device from the external powersource;
compensating for unavailable power required by the device from the external power source by drawing power from the internal power source; and
combining the power from the external power source with the power from the internal power source to supply power to power the device. - View Dependent Claims (17, 18, 19, 20, 21, 22)
- regulating the power supplied by the internal power source and the external power
Specification