Power supply system including thermal current limiting protection
First Claim
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1. A power supply system comprising:
- a constant voltage output source connected to a load, which is to be supplied;
a thermal current limiter in operative connection between the constant voltage output source and the load, the thermal current limiter constructed so as to incrementally lower an output of the constant voltage output source corresponding to a rise in temperature; and
a back-up battery in operative connection with the constant voltage source and the load.
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Abstract
A power supply system including a thermal current limiting device operating due to high temperatures. At predetermined temperatures, the device acts to incrementally control the output of a power supply. An implementation of the device may be found in a voltage or power regulator wherein a constant output voltage or power is desired. As temperature increases, the power supply system is not switched off, rather current output is adjusted in a controlled manner thereby eliminating the need for the device to be entirely shut down for a time period. A back-up battery is used to provide supplementing current needed by the load.
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Citations
16 Claims
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1. A power supply system comprising:
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a constant voltage output source connected to a load, which is to be supplied; a thermal current limiter in operative connection between the constant voltage output source and the load, the thermal current limiter constructed so as to incrementally lower an output of the constant voltage output source corresponding to a rise in temperature; and a back-up battery in operative connection with the constant voltage source and the load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A power supply system comprising:
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a constant power load; a constant voltage output source connected to the constant power load; a thermal current limiter in operative connection between the constant voltage output source and the constant power load, the thermal current limiter constructed to incrementally lower an output of the constant voltage output source corresponding to a rise in temperature, the thermal current limiter including a temperature sensor located in sensing relationship with the constant power load which is a separate device and distanced from the thermal current limiter, to sense a temperature value at the constant power load, wherein the sensed temperature value is used by the thermal current limiter to control output of the constant voltage output source. - View Dependent Claims (15, 16)
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Specification