Patent ID: 9391448
Filing Date: 2016-07-12
CPC Classification: H02H

Claim Text:
1. A protection circuit, comprising: a first resistive element configured for coupling to a protected circuit, wherein the first resistive element has a particular resistance value; a voltage regulator coupled to the first resistive element; a bypass capacitor coupled to the first resistive element and to the voltage regulator; and a second resistive element coupled to the bypass capacitor and configured for coupling between the bypass capacitor and the protected circuit, wherein the particular resistance value is selected to enable a magnitude of a bias current provided to the protected circuit to remain within a first operating current range associated with the protected circuit and to remain below a latchup holding current value associated with the protected circuit, and wherein a capacitance value of the bypass capacitor is less than or equal to 0.1 microfarads, and wherein a resistance value of the second resistive element is less than or equal to 10 ohms.