Patent ID: 9669780
Date: 2017-06-06
CPC Classifications: B60R,H02M

Claim:
1. An electrical system assembly for a motor vehicle, comprising: a first electrical system, a second electrical system galvanically isolated from the first electrical system, the second electrical system being switchable between an idle state and an active state, a capacitive coupling element, wherein the first electrical system is capacitively coupled to the second electrical system via the capacitive coupling element for transmitting signals, a signal transmission unit arranged in the first electrical system and communicating with the capacitive coupling element, wherein the signal transmission unit is configured to transmit an activation signal on an input side of the capacitive coupling element for activating the second electrical system from the idle state to the active state, and wherein the signal transmission unit includes a signal transmitter configured to transmit the activation signal as an alternating voltage signal, a signal receiving unit arranged in the second electrical system and communicating with the capacitive coupling element, wherein the signal receiving unit is configured to receive the activation signal on an output side of the capacitive coupling element and switch the second electrical system from the idle state to the active state in response to receiving the activation signal, and a charge pump disposed in the first electrical system between the signal transmission unit and the capacitive coupling element wherein the charge pump is configured to adjust an amplitude of the alternating voltage signal transmitted via the signal transmitter of the signal transmission unit.