Circuit arrangement for voltage adjustment
AssigneeInfineon Technologies AG
InventorsGunter Haider, Christoph Mayerl, Gerhard Nebel, Iker San Sebastian, Holger Sedlak, Uwe Weder
Life of this patent
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Abstract
A circuit arrangement for voltage regulation having a series regulator with a regulating amplifier and a charge pump that is connected downstream of the regulating amplifier, a reference voltage unit that generates a reference voltage for the regulating amplifier, and a starter unit that generates a starter voltage in order to supply the regulating amplifier, the charge pump, and the reference voltage unit with voltage while the series regulator is being started.
Claims21
A circuit arrangement for voltage regulation comprising:
- a series regulator which has a regulating amplifier and a charge pump that is connected downstream of the regulating amplifier;
- a reference voltage unit that generates a reference voltage for the regulating amplifier;
- and
- a starter unit that generates a starter voltage in order to supply the regulating amplifier, the charge pump, and the reference voltage unit with voltage while the series regulator is being started.
A method for operating a voltage regulator, comprising the steps of:
- providing a series regulator having a charge pump that is connected downstream of a regulating amplifier;
- supplying the regulating amplifier and the charge pump, during a start phase, with a starter voltage that is generated by a starter unit;
- wherein, after the start phase has ended, a changeover is made to a normal operating phase by using a changeover unit to disconnect the regulating amplifier and the charge pump from the starter voltage of the starter unit and to connect the regulating amplifier and the charge pump to an output voltage that is generated by the series regulator.
A circuit arrangement for voltage regulation comprising:
- a series regulating means having a regulating amplifier and a charge pump that is connected downstream of the regulating amplifier;
- a reference voltage means for generating a reference voltage for the regulating amplifier;
- and
- a starter means for generating a starter voltage in order to supply the regulating amplifier, the charge pump, and the reference voltage means with voltage while the series regulating means is being started.
Dependencies are inferred from the claim text.