Adaptable power supply circuit
AssigneeSTMicroelectronics S.r.l.
InventorLuc Wuidart
Life of this patent
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Abstract
A power supply circuit and a transponder having a circuit for rectifying an A.C. voltage and two power storage elements, the rectifying circuit providing a rectified voltage to at least one of the storage elements and an output voltage being provided by at least one of the storage elements, and at least one switching element for switching the circuit operation between a state of provision of a relatively high voltage and a state of provision of a relatively low voltage, the second state configuring the rectifying circuit in halfwave operation.
Claims9
A power circuit comprising a circuit for rectifying an A.C. voltage and two power storage elements, the rectifying circuit providing a rectified voltage to at least one of the storage elements and an output voltage being provided by at least one of the storage elements, and comprising at least one switching element for switching the circuit operation between a first state of provision of a relatively high voltage and a second state of provision of a relatively low voltage, the second state configuring the rectifying circuit in halfwave operation.
A power circuit comprising a circuit for rectifying an A.C. voltage and two power storage elements, the rectifying circuit providing a rectified voltage to at least one of the storage elements and an output voltage being provided by at least one of the storage elements, and comprising at least one switching element for switching the circuit operation between a first state of provision of a relatively high voltage and a second state of provision of a relatively low voltage, the second state configuring the rectifying circuit in halfwave operation,
- wherein the switching element short-circuits one of the storage elements, and wherein the rectifying circuit and the storage elements are respectively formed of series associations of two diodes and of two capacitors, the A.C. voltage being applied to the respective midpoints of said series associations connected in parallel.
Dependencies are inferred from the claim text.