Patent ID: 10050648

Abstract:
Satellite controller circuitry includes a connection (i.e. coaxial or single wire with ground), with a control unit receiving a data message and generating a response message as output, and transmitter circuitry transmitting the response message. The transmitter circuitry has a first transistor having a first conduction terminal coupled to the connection, a second conduction terminal coupled to ground, and a control terminal coupled to receive output from the control unit, a second transistor having a first conduction terminal coupled to the connection, a second conduction terminal coupled to ground, and a control terminal coupled to receive the output from the control unit. The first and second transistors are configured such that a second current flowing through the first conduction terminal of the second transistor is in a non-unity ratioed relationship, or in a unity ratioed relationship, with a first current flowing through the first conduction terminal of the first transistor.