Abstract: An ASIC for current, voltage and temperature measurements has signal inputs (RSHH, VBAT, ETS, ETR) for receiving input signals, several choppers, an amplifier, an analog/digital converter and a digital signal output for outputting the result of the measurement and for communicating with a higher-order control unit. The invention proposes that the measuring circuit contain several differential signal inputs (RSHH-RSHL, VBAT-RSHL, ETS-RSHL, ETR-RSHL and VBAT-ETS), wherein one respective chopper/multiplexer is arranged downstream of each signal input.

Abstract: In a power supply system supplying several loads (10, 11, 12) using a joint power bus (LB) and connecting electronic control units (&mgr;C) with each other and the loads by means of a control bus (CAN) for digital information and control data, a measuring resistor (21) connected in series with the power bus measures the total current of the loads connected, measurement information is transferred on the control bus (CAN), and the differential current resulting from a switching process is evaluated by the control system. The measuring resistor (21) comprising a metal alloy is integrated with a semiconductor chip with heat conducting connection directly or via a printed circuit board (PCB), which contains the whole evaluation and transmission electronics, into a small, compact current measuring module.

Abstract: A resistor of SMD (Surface Mounted Device) construction includes a film of a resistive alloy as a resistive track on two electrically separated carrier plate elements of copper, which are constructed as contact elements solderable to the terminals of a printed circuit board to thereby ensure good heat dissipation into a printed circuit board. In order to manufacture such resistors, a resistive film sufficient for a plurality of individual resistors is adhered to but electrically isolated from a large copper plate and the laminate formed thereby is split into the individual resistors after producing the individual resistive tracks and their electrical connections to the copper plate and after producing gaps between the plate elements for each track.

Abstract: A resistor of SMD (Surface Mounted Device) construction includes a film of a resistive alloy as a resistive track on two electrically separated carrier plate elements of copper, which are constructed as contact elements solderable to the terminals of a printed circuit board to thereby ensure good heat dissipation into a printed circuit board. In order to manufacture such resistors, a resistive film sufficient for a plurality of individual resistors is adhered to but electrically isolated from a large copper plate and the laminate formed thereby is split into the individual resistors after producing the individual resistive tracks and their electrical connections to the copper plate and after producing gaps between the plate elements for each track.