Driver circuit for a digital signal transmitting bus

摘要

A driver circuit for a digital signal transmitting bus includes a main switch. The main switch is connected to the bus, is controllable by the digital signal to be transmitted, and has one on-switching state in which it has maximum electrical conductivity, one off-switching state in which it has minimum electrical conductivity and at least one intermediate switching state with an electrical conductivity between the minimum and maximum conductivity. The digital signal has a first logic state and a second logic state, the first logic state controls the main switch to be in the on-switching state and the second logic state controls the main switch to be in the off-switching state. The main switch is in the intermediate switching state during switching from the on-switching state to the off-switching state and/or vice versa.

主权项

1. A driver circuit for a digital signal transmitting bus comprising a main switch, wherein
the main switch is connected to the bus, is controllable by the digital signal to be transmitted, and has one on-switching state in which it has maximum electrical conductivity, one off-switching state in which it has minimum electrical conductivity and one or more intermediate switching states, each with an electrical conductivity between the minimum and maximum conductivity; the main switch comprises a plurality of sub-switches and a plurality of resistive elements, each resistive element coupled in series with one of the sub-switches with serial connections formed of a sub-switch and a resistive element being coupled in parallel; the digital signal has a first logic state and a second logic state, the first logic state controls the main switch to be in the on-switching state and the second logic state controls the main switch to be in the off-switching state; and the main switch is in one of the one or more intermediate switching states during switching from the on-switching state to the off-switching state and/or vice versa.