Abstract: A frequency converter kit includes: basic units having a first plug-in connector by means of which the basic units are connectable to an AC voltage grid; a power electronics system; and a heat sink for cooling the power electronics system, wherein the heat sink has coupling elements; and extension units that are pluggable onto the basic units and have a port by means of which the extension units are connectable to the AC voltage grid; a first plug-in connector for forming a plug-in connection with the first plug-in connector of the basic units; and a housing element, the housing element having coupling elements. The coupling elements of the basic units and the coupling elements of the extension units are formed such that they interlock when the extension units are plugged onto the basic units.

Abstract: A motor system includes an electric motor and a frequency converter for controlling the electric motor, wherein the frequency converter has a circuit board with conductor paths. The circuit board is to be electrically connected to the electric motor via a wire-to-board connection. The wire-to-board connection has: through-openings in the circuit board; electrically conductive contact elements which are inserted into the through-openings in the circuit board, which are electrically contacting corresponding conductor paths on the circuit board, and which have through-openings; and a pin terminal having pin contacts, which are to be introduced into corresponding through-openings of the contact elements to form an electrical contact with the contact elements, and which has terminal contacts that are electrically connected to the pin contacts, into which corresponding motor conductors can be introduced in order to electrically connect the motor conductor to a corresponding conductor path of the circuit board.

Abstract: An electric control device includes a first delta sigma modulator having a clock input connection, a second delta sigma modulator having a clock input connection, and an evaluation unit. The evaluation unit includes a first clock output connection which is connected to the clock input connection of the first delta sigma modulator by a first electrical cable, and a second clock output connection which is connected to the clock input connection of the second delta sigma modulator by a second electrical cable. The evaluation unit is designed to generate a clock signal (CLK1) at the first clock output connection (7) in phase opposition to a clock signal (CLK2) at the second clock output connection (9).

Abstract: An electric control device includes a first delta sigma modulator having a clock input connection, a second delta sigma modulator having a clock input connection, and an evaluation unit. The evaluation unit includes a first clock output connection which is connected to the clock input connection of the first delta sigma modulator by a first electrical cable, and a second clock output connection which is connected to the clock input connection of the second delta sigma modulator by a second electrical cable. The evaluation unit is designed to generate a clock signal (CLK1) at the first clock output connection (7) in phase opposition to a clock signal (CLK2) at the second clock output connection (9).