Patent ID: 9595954
Date: 2017-03-14
CPC Classifications: H03K

Claim:
1. A circuit comprising: a high side driver for driving a high side transistor to couple a load output to a supply voltage; a bootstrap capacitor coupled to a bootstrap input of the high side driver; a transfer capacitor coupled to the bootstrap capacitor to charge the bootstrap capacitor, the transfer capacitor having a first transfer capacitor terminal and a second transfer capacitor terminal, the second transfer capacitor terminal directly connected to a low side power input of a low side driver; a first resistor coupled to the first transfer capacitor terminal, the transfer capacitor configured to be charged from a voltage source through the first resistor, wherein the first resistor is configured to effectively decoupled the transfer capacitor from the voltage source during a voltage transient event; and a second resistor through which the transfer capacitor is configured to charge the boot capacitor.