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1. (WO2017186958) ASSEMBLY FOR SWITCHING A RESISTOR

Pub. No.:    WO/2017/186958    International Application No.:    PCT/EP2017/060297
Publication Date: Fri Nov 03 00:59:59 CET 2017 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: H05B 1/02
Applicants: WEBASTO SE
Inventors: HENNE, Alexander
BOTZENMAYER, Norbert
RECHBERGER, Hans
SEILER, Heinz
Title: ASSEMBLY FOR SWITCHING A RESISTOR
Abstract:
The invention relates to an assembly, comprising a heat-releasing first resistor (R1 to R4), a control device for switching the first resistor (R1 to R4), and a component, in particular a grounded component, that lies at a potential not directly related to a control voltage, in particular a housing or a chassis component (10), wherein the first resistor (R1 to R4) is arranged in close spatial proximity to the component, in particular housing (10), and has a first and a second connection, wherein the control device comprises a first switching device (M1) and a second switching device (M2), wherein the first switching device (M1), the first resistor (R1 to R4), and the second switching device (M2) are connected in series in the stated order and therefore form a series circuit, wherein a compensation device (20) is provided and is configured in such a way that, in the ON state of the first resistor (R1 to R4), a voltage is present between the first and the second connections, such that the first connection is at a first potential and the second connection is at a second potential, wherein, in the OFF state, the resistor (R1 to R4) is held at an intermediate potential, which lies between the first and the second potentials, in particular at, at least approximately, half of the supply voltage and/or wherein the control device is configured to control the first resistor with pulse-width modulation, wherein the first and the second switching devices are switched synchronously.