JPH03120699U

JPH03120699U -

Info

Publication number: JPH03120699U
Application number: JP2700090U
Authority: JP
Priority date: 1990-03-16
Filing date: 1990-03-16
Publication date: 1991-12-11

Description

[Brief explanation of drawings]

第１図は本考案の実施例に係わるステツピング
モータ装置を示すブロツク図、第２図は第１図の
第１の制御回路を詳しく示す回路図、第３図は第
１図の各部の状態を示す波形図である。１……電源、２ａ〜２ｄ……巻線、３ａ〜３ｄ
……スイツチング素子、４ａ，４ｂ……抵抗、１
６……第１のＮＯＲゲート、１７……第２のＮＯ
Ｒゲート、１８……第１のＮＯＴ回路、１９……
第２のＮＯＴ回路。 Fig. 1 is a block diagram showing a stepping motor device according to an embodiment of the present invention, Fig. 2 is a circuit diagram showing details of the first control circuit shown in Fig. 1, and Fig. 3 is a state of each part in Fig. 1. FIG. 1...Power supply, 2a-2d...Winding, 3a-3d
...Switching element, 4a, 4b...Resistor, 1
6...First NOR gate, 17...Second NO
R gate, 18...first NOT circuit, 19...
Second NOT circuit.

Claims

[Claims for Utility Model Registration] A pair of windings is connected between one end and the other end of a DC power source, one and the other of the pair of windings are wound around the same magnetic pole, and the one and the other are wound around the same magnetic pole. In a bifilar-wound stepping motor device in which first and second switching elements are connected in series to each winding, an excitation current is caused to flow through one of the windings when the first switching element is turned on. a first output terminal that generates a first excitation signal to cause the switching element to turn on; and a second output terminal that generates a second excitation signal to cause the excitation signal to flow through the other winding by turning on the second switching element. an excitation signal generation circuit comprising an output terminal; a first NOT circuit for inverting the phase of the first excitation signal generated from the first output terminal; and an excitation signal generation circuit comprising an excitation signal generated from the second output terminal. a second NOT circuit for inverting the phase of the second excitation signal; the first excitation signal generated from the first output terminal and the output of the second NOT circuit are input; The first excitation signal is at a first level to turn on the first switching element and the second excitation signal is at a second level to turn off the second switching element. Sometimes the first switching element is allowed to be in the on state, and the first excitation signal is
When the second excitation signal is at the first level that turns on the second switching element, the first switching element turns on. a first logic circuit that prohibits turning on; the second signal generated from the second output terminal and the output of the first NOT circuit are input;
The second excitation signal is at a first level state turning on the second switching element and the first excitation signal is at a second level state turning off the first switching element. At one time, the second switching element is allowed to turn on, and even when the second excitation signal is in a first level state that turns on the second switching element, the first excitation signal and a second logic circuit that prohibits the second switching element from turning on when the first switching element is in a first level state turning on the first switching element. Ping motor device.