JPS61153475U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of an encoder with a brushless co-radiator according to an embodiment of this invention;
The figure is a signal generation circuit diagram, Figure 3 is a waveform diagram showing the relationship of signals to obtain DC output, Figure 4 is a longitudinal cross-sectional view of a conventional encoder with a brushless co-generator, and Figure 5 is a diagram showing the relationship between signals to obtain DC output. FIG. 6 is a perspective view of a part of the encoder section, and FIG. 7 is a waveform diagram showing the encoder output. 1 is a rotating shaft, 15 is a brushless co-radiator section, 22 is an encoder section, C1 to C4 are rectangular wave power generation outputs, and D and E are switching signals. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] In an encoder with a brushless co-generator, which consists of a brushless co-generator section and an encoder section, and is attached to the rotating shaft of a permanent magnet synchronous motor to detect speed and position, the magnetic pole position of the permanent magnet output from the encoder section is detected. 1. An encoder with a brushless co-generator, characterized in that a signal to be detected is combined with a signal whose phase is shifted by a predetermined angle to form a switching signal for switching a rectangular wave power generation output output from a brushless co-generator section.