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US 10,321,539 B1Granted
Input protection circuit
AssigneeInfineon Technologies AG
InventorsFausto Borghetti, Fabio Fragiacomo, Davide Ghedin
Life of this patent
Estimating the term…
Abstract
In an example, a circuit includes one or more switches, wherein the circuit is configured to receive a battery voltage from a battery, deliver an input voltage to a controller, deliver an output voltage, and receive signals from the controller. The signals may activate the one or more switches and deactivate the one or more switches and activating the one or more switches and deactivating the one or more switches may control the input voltage to the controller.
Claims20
A circuit comprising one or more switches, wherein the circuit is configured to:
- receive a battery voltage from a battery;
- deliver an input voltage to a controller, wherein the input voltage is configured to provide power to circuitry of the controller;
- deliver an output voltage;
- and
- receive signals from the controller,
- wherein the signals activate the one or more switches and deactivate the one or more switches, and
- wherein activating the one or more switches and deactivating the one or more switches increases a magnitude of the input voltage to the controller if the battery voltage is below a voltage threshold.
4 more elements
A system comprising:
- a circuit comprising one or more switches;
- a battery configured to deliver a battery voltage to power the circuit;
- a load configured to be powered by an output voltage delivered by the circuit;
- and
- a controller configured to produce signals activating the one or more switches and deactivating the one or more switches, wherein the circuit is configured to provide an input voltage to the controller, and wherein the input voltage is configured to provide power to circuitry of the controller, and
- wherein activating the one or more switches and deactivating the one or more switches increases a magnitude of the input voltage to the controller if the battery voltage is below a voltage threshold.
3 more elements
A method comprising:
- receiving, by a circuit comprising one or more switches, a battery voltage from a battery;
- delivering, by the circuit, an output voltage to a load;
- delivering, by the circuit, an input voltage to a controller configured to activate the one or more switches and deactivate the one or more switches, wherein the input voltage is configured to provide power to circuitry of the controller;
- determining, by the controller, a voltage value of the battery voltage;
- and
- increasing, with the circuit, a magnitude of the input voltage to the controller in response to determining that the voltage value of the battery voltage is below a voltage threshold.
3 more elements
Dependencies are inferred from the claim text.