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US 2014/0233145 A1Published application
Circuit arrangement for protection against electrostatic discharges and a method for operating same
AssigneeAms AG
InventorDieter MAIER
Life of this patent
Estimating the term…
Abstract
A circuit arrangement for protection against electrostatic discharges has a diverting structure, which includes a diverting element and a switchable element. The diverting element can be set up to drain off an electrostatic discharge between a first and a second terminal. The switchable element can take a first and a second switching state, where a function of the diverting element can be activated depending on the switching state of the switchable element.
Claims5
A circuit arrangement for protection against electrostatic discharges comprising:
- a diverting structure with a diverting element, which is configured to drain off an electrostatic discharge between a first and a second terminal;
- a first trigger element, which is configured to issue a first trigger signal in accordance with a preset voltage rise between the first and second terminals;
- a second trigger element, which is configured to issue a second trigger signal in accordance with a preset threshold voltage between the first and second terminals;
- a first switchable element and a second switchable element, each of which can take on a first and a second switching state;
- and
- a control circuit, which is configured to activate a function of the first and second trigger elements via control of the first and second switchable elements,
- wherein the diverting element is configured to connect the first and second terminals in accordance with the first and/or the second trigger signal.
4 more elements
A method for operation of a circuit arrangement for protection against electrostatic discharges comprising:
- providing the circuit arrangement with a diverting element that is set up to drain off an electrostatic discharge between a first and a second terminal;
- generating a first trigger signal in accordance with a preset voltage rise between the first and the second terminal;
- generating a second trigger signal in accordance with a preset threshold voltage between the first and the second terminal;
- determining an operating state of the circuit arrangement;
- and
- transmitting of the first trigger signal if a first operating state is determined in the determination, and transmitting the second trigger signal if a second operating state is determined in the determining step,
- wherein the transmission element is controlled with the transmitted trigger signal.
4 more elements
Dependencies are inferred from the claim text.