Patent ID: 9013903
Filing Date: 2015-04-21
Classification: H02M,H03K

Abstract:
1. A switch driver circuitry, comprising: a voltage-to-current converter circuitry configured to receive a control signal referenced to a first reference potential and configured to convert the control signal to a current pulse signal, wherein the first reference potential is a ground potential; a current-to-voltage converter circuitry configured to generate a switch drive voltage signal based on the current pulse signal; wherein the voltage-to-current converter circuitry is further configured to sink the current pulse signal from the current-to-voltage converter circuitry; wherein the switch drive voltage signal is referenced to a second reference potential that is floating with respect to the first reference potential; wherein the switch drive voltage signal is configured to control the conduction state of a power switch; and wherein the voltage-to-current converter circuitry comprises a bi-polar junction transistor (BJT) coupled to a metal oxide semiconductor transistor (MOS) in a Cascode arrangement; wherein the BJT is also coupled to the current-to-voltage converter circuitry; and wherein the control signal is configured to control the conduction state of the BJT and MOS transistors to generate the current pulse signal.