Abstract: The invention relates to a regulating device (1) for a motor, comprising a housing (2) which can be associated with said motor and in which a control unit (5) and an actuator (6) are arranged. Due to heat-related reasons, said device can only be used in an encapsulated manner, for example close to a motor. In order to solve this problem, the actuator (6) comprises an electromagnetic switching element (8a,8b) and the control signal (7) for the same is designed as a timing signal which is measured—taking into consideration at least one heat source inside or optionally outside the housing (2)—in such a way that the operating temperature of the electromagnetic switching element (8a,8b) is below an upper authorised limiting value.

Abstract: The invention relates to a regulating device (1) for a motor, comprising a housing (2) which can be associated with said motor and in which a control unit (5) and an actuator (6) are arranged. Due to heat-related reasons, said device can only be used in an encapsulated manner, for example close to a motor. In order to solve this problem, the actuator (6) comprises an electromagnetic switching element (8a,8b) and the control signal (7) for the same is designed as a timing signal which is measured—taking into consideration at least one heat source inside or optionally outside the housing (2)—in such a way that the operating temperature of the electromagnetic switching element (8a,8b) is below an upper authorised limiting value.

Abstract: A process for the production of ceramic substrates for thin layer circuits utilizes a cast compound which may be transformed into a ceramic body by sintering. The compound is poured out in the form of a coating on a base, for drying whereupon a leather-like, tough, "green" substrate layer is formed from which the required shapes can be punched out and sintered. In the green, air-drying state, the substrates are exposed to a pressure of up to approximately 1000 kp/cm.sup.2 between highly polished, plane parallel surfaces constituted by mirror finished surfaces of compression rams which may advantageously include highly polished surfaces of synthetic material.