Shunt regulator for use with resonant input source
First Claim
1. A regulator adapted for shunt operation, said regulator being operatively coupled to a resonant inductive means, said regulator obtaining input power from said inductive means, said regulator comprisingregulating means for regulating output power by shunting said input power;
- said regulator having separate current paths for shunt current and output current.
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Accused Products
Abstract
A regulator is provided for receiving electrical power from an external alternating magnetic field and developing a regulated output voltage. The regulator is operatively coupled to a resonant inductive circuit for obtaining input power. It includes a circuit for regulating output power by shunting input power and providing separate current paths for shunt current and output current. The circuit includes a rectifier in the output current path. The regulator is integrated on a single VLSI chip.
61 Citations
27 Claims
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1. A regulator adapted for shunt operation, said regulator being operatively coupled to a resonant inductive means, said regulator obtaining input power from said inductive means, said regulator comprising
regulating means for regulating output power by shunting said input power; said regulator having separate current paths for shunt current and output current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 27)
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15. An integratable regulator comprising inductive means for receiving an impinging magnetic field and providing input power;
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shunting means adapted to divert excess power of said input power provided by said inductive means; rectifier means coupled with said inductive means and with charge storage means for providing a filtered output; said regulator having separate paths for the excess power and the output power. - View Dependent Claims (16, 17)
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18. A regulator adapted to provide a predetermined voltage at its output comprising, in combination,
a tuned circuit including means for receiving an impinging magnetic powering field said powering field being provided as input power; - and
a shunt regulating circuit adapted to shunt said input power, said circuit including rectifier and charge storage means for respectively rectifying and supplying said predetermined voltage, said circuit further including separate paths for shunted input power and said predetermined voltage; said shunt regulating circuit further including reference voltage means and sensor means adapted to provide a control signal to said shunt for dissipating excess input power. - View Dependent Claims (19, 20, 21, 22, 23)
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24. An integratable regulator adapted to provide a predetermined voltage at its output comprising:
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a tuned circuit including inductive means for receiving an applied magnetic powering field and providing input power; and a shunt regulating circuit having separate paths for excess power and output power, said circuit including comparator means for comparing an output voltage and a reference voltage and providing a shunt control signal, shunt means for shunting excess power in response to said shunt control signal, rectifier and charge storage means for stabilising said output voltage, wherein said shunt means is juxtaposed said tuned circuit in order to shield the remainder of said integratable regulator from excess input power; and said shunt regulating circuit is adapted to shunt excess input power when said output voltage exceeds said predetermined voltage in order to maintain said output and predetermined voltages substantially equal.
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25. An integratable shunt regulator comprising
shunt means adapted to receive an input voltage from a resonant inductive source and provide, as an output, a predetermined voltage by way of shunting excess energy for maintaining said predetermined voltage, and rectifier and charge storage means adapted to receive said predetermined voltage and respectively, rectify and filter and store said predetermined voltage for providing, as an output, a substantially stable supply voltage.
Specification