Back to results
US 7,405,548 B2Granted
Circuit for generating a supply voltage
AssigneeInfineon Technologies AG
InventorsAdmir Alihodzic, Thomas Jean Ludovic Baglin
Life of this patent
Estimating the term…
Abstract
Circuit for generating a supply voltage having a voltage input connected to a voltage regulator that generates a first supply voltage and to a low-noise voltage regulator that generates a low-noise supply voltage. A control unit determines which of the two supply voltages is switched to a supply voltage output of the circuit.
Claims20
A circuit for generating a supply voltage, comprising:
- a voltage input connected to a voltage regulator that generates a first supply voltage and to a low-noise voltage regulator that generates a low-noise supply voltage;
- a control unit that determines which one of the two supply voltages is switched to a supply voltage output of the circuit;
- and
- a switching unit controlled by the control unit wherein only one of said two supply voltages is switched to the supply voltage output of the circuit;
- wherein the switching unit further comprises:
- a first controllable switch via which the voltage regulator can be connected to the supply voltage output;
- and
- a second controllable switch via which the low-noise voltage regulator can be connected to the supply voltage output,
- wherein the control unit controls the two controllable switches.
6 more elements
A circuit for generating a supply voltage, comprising:
- a voltage input connected to a voltage regulating means for generating a first supply voltage and to a low noise voltage regulating means for generating a low noise supply voltage;
- a control means for determining which one of the two supply voltages is switched to a supply voltage output of the circuit;
- and
- a switching unit controlled by the control unit wherein only one of said two supply voltages is switched to the supply voltage output of the circuit;
- wherein the switching unit a first controllable switching means via which the voltage regulating means can be connected to the supply voltage output;
- and
- a second controllable switching means via which the low noise voltage regulating means can be connected to the supply voltage output,
- wherein the control means controls the two controllable switching means.
5 more elements
Dependencies are inferred from the claim text.