Protection circuit for a simulated battery cell
AssigneedSPACE GmbH
InventorPaul Gruber
Life of this patent
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Abstract
A protection circuit for a simulated battery cell having an output comprising an output voltage includes: at least one MOSFET connected to the output of the simulated battery cell for short-circuiting the output of the simulated battery cell; a capacitor connected to a gate electrode of the at least one MOSFET; an overvoltage detection device configured to charge the capacitor with the output voltage based on an overvoltage limit of the output voltage being exceeded; and a threshold voltage detection device configured to release the gate electrode based on a threshold value of a voltage at the capacitor not being reached.
Claims8
A protection circuit for a simulated battery cell having an output comprising an output voltage, the protection circuit comprising:
- at least one MOSFET connected to the output of the simulated battery cell for short-circuiting the output of the simulated battery cell;
- a capacitor connected to a gate electrode of the at least one MOSFET;
- an overvoltage detection device configured to charge the capacitor with the output voltage based on an overvoltage limit of the output voltage being exceeded;
- and
- a threshold voltage detection device configured to release the gate electrode based on a threshold value of a voltage at the capacitor not being reached.
A method for protecting a simulation device fed by a simulated battery cell, comprising:
- charging a capacitor with an output voltage of an output of the simulated battery cell based on an overvoltage limit of the output voltage being exceeded, wherein the capacitor is connected to a gate electrode of at least one MOSFET, and wherein the at least one MOSFET is connected to the output for short-circuiting the same;
- and
- releasing the gate electrode based on a voltage at the capacitor falling below a threshold value.
Dependencies are inferred from the claim text.