Patent ID: 6380702
Filing Date: 2002-04-30
Classification: H02P,Y10S

Abstract:
A controller for a commutator motor (1) operated with the aid of a phase-gating controller (3), having a steady and also a jerky rotational behavior of the commutator motor, for which purpose the phase-gating controller (3) is assigned a first and a second control device (4, 5), for a first and a second gating (aâ€², bâ€², câ€², dâ€²; e) of the half waves of an AC voltage, wherein during the operation of the commutator motor (1) without transitions, and in the case of a soft transition from steady to jerky rotational behavior both a steady and a jerky rotational behavior of the commutator motor (1) are achieved by a grid-like permanent splitting of the half waves of an AC voltage in first and second subranges (7, 8) in the case of a permanently set gating level (9) of the half waves in the second subranges (8), wherein all the half waves of an AC voltage can be variably gated with the aid of the first control device (4), and the gating of the half waves in the second subranges (8) can be permanently set in a variable fashion with the aid of the second control device (5), the gating of the half waves with the aid of the first control device (4) being controlled in the first and in the second subranges (7, 8) from the maximum gating as far as the permanently set gating level (9) of the half waves in the second subranges (8), and in the further course of the gating reduction of the half waves down to the minimum gating the half waves of an AC voltage are gated only in the first subranges (7) with the aid of the first control device (4), the gating level (9) of the half waves which is permanently set with the aid of the second control device (5) remaining constant in the second subranges (8).