Circuit for extending the useful discharge time of load driving capacitors
First Claim
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1. A capacitor-based energy storage and release system comprising:
- a) capacitive energy storage means having a capacitor voltage thereacross when charged;
b) voltage regulator means arranged to produce an output at an output voltage which is a small fraction of said capacitor voltage as long as said capacitor voltage is higher than said output voltage;
c) switched means for selectably connecting said energy storage means to a source of relatively high charging voltage, and to the input of said voltage regulator means; and
d) inverter means connected to said voltage regulator means and arranged to convert said output voltage to a substantially higher load operating voltage.
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Abstract
In a capacitor-based energy storage system, in which the capacitor charging voltage is on the same order of magnitude as the system output voltage, the time between recharges for a given energy release rate is extended by producing an intermediate regulated capacitor output of a voltage having a lower order of magnitude and then stepping that voltage back up to the system output voltage through the use of an inverter.
19 Citations
5 Claims
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1. A capacitor-based energy storage and release system comprising:
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a) capacitive energy storage means having a capacitor voltage thereacross when charged; b) voltage regulator means arranged to produce an output at an output voltage which is a small fraction of said capacitor voltage as long as said capacitor voltage is higher than said output voltage; c) switched means for selectably connecting said energy storage means to a source of relatively high charging voltage, and to the input of said voltage regulator means; and d) inverter means connected to said voltage regulator means and arranged to convert said output voltage to a substantially higher load operating voltage. - View Dependent Claims (2, 3, 4, 5)
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Specification