Patent ID: 11936496
Assignee: MICROCHIP TECHNOLOGY INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A method of operating a controller area network (CAN) transmitter, comprising:
at an input stage circuit, receiving an input signal, the input signal to indicate whether an output stage circuit is to provide dominant or recessive states in CANH and CANL outputs from a CANH port and a CANL port;
at a first cascode circuit, providing output signals on the output stage circuit to provide dominant or recessive states based on the input signal;
at a first switch circuit, switching the first cascode circuit on and off;
with a second cascode circuit, providing output signals on the output stage circuit to provide dominant or recessive states based on the input signal;
with a second switch circuit, based upon the input signal, switching the second cascode circuit on and off;
with the first switch circuit and second switch circuit, based upon an indication from the input signal to output a recessive state, switching off the first cascode circuit and the second cascode circuit to short-circuit sources of the first cascode circuit and the second cascode circuit.