Power Supply
First Claim
Patent Images
1. A power supply for a cellular telephone having a first load and an LED flash, the power supply including:
- an input for connecting to a power source;
a first output for connecting to the first load;
a second output for connecting to the LED flash;
a supercapacitive device that is connected to the second output for powering the LED flash; and
a regulator unit connected to the input for charging the supercapacitive device.
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Accused Products
Abstract
A power supply (1) for powering a load, the load being in the form of a flash driver circuit (4) for a digital camera (not shown). The power supply includes a supercapacitive device, in the form of a supercapacitor (8), for powering circuit (4). A regulator unit, in the form of an inductive regulator (10), charges supercapacitor (8).
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Citations
20 Claims
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1. A power supply for a cellular telephone having a first load and an LED flash, the power supply including:
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an input for connecting to a power source; a first output for connecting to the first load; a second output for connecting to the LED flash; a supercapacitive device that is connected to the second output for powering the LED flash; and a regulator unit connected to the input for charging the supercapacitive device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A power supply for an LED flash, the power supply including:
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an input for connecting to a power source; an output for connecting to the LED gas; a supercapacitive device that is connected to output for powering the LED flash; and
;a regulator unit connected to the input for charging the supercapacitive device.
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19. A power supply for a plurality of loads that draw respective load currents I1, I2, . . . IN, where N≧
- 2, the power supply including;
an input for connecting to a power source that provides a minimum source voltage VS; an output for selectively connecting with one or more of the loads for providing the load currents I1, I2, . . . IN at respective predetermined load voltages V1, V2, . . . VN, wherein V1≠
V2, and, . . . , and V1≠
VN;a supercapacitive device in parallel with the output; and a control circuit disposed between the input and the output for selectively applying one of V1, V2, . . . VN to the output. - View Dependent Claims (20)
- 2, the power supply including;
Specification