JPS59170212U

JPS59170212U - Load position detection device using resolver

Info

Publication number: JPS59170212U
Application number: JP6465883U
Authority: JP
Inventors: 井上　堅治
Original assignee: 神鋼電機株式会社
Priority date: 1983-04-28
Filing date: 1983-04-28
Publication date: 1984-11-14
Also published as: JPH0236090Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は実施例のブロック線図、第２図は動作説明のタ
イムチャートである。１・・・・・・基準発振器、２・・・・・・分周器、３
・・・・・・２相発振器、４・・・・・・レゾルバ、８
・・・・・・波形変換回路、９・・・・；・第１のラッ
チ回路、１０・・・・・・第２のラッチ回路、１１・・
・・・・第１の比較回路、１２・・・・・・第２の比較
回路、１３・・・・・・カウンタ回路、１４・・・・・
・第３のラッチ回路。FIG. 1 is a block diagram of the embodiment, and FIG. 2 is a time chart for explaining the operation. 1... Reference oscillator, 2... Frequency divider, 3
...Two-phase oscillator, 4...Resolver, 8
... Waveform conversion circuit, 9....; First latch circuit, 10... Second latch circuit, 11...
...First comparison circuit, 12...Second comparison circuit, 13...Counter circuit, 14...
-Third latch circuit.

Claims

[Scope of utility model registration request]

In a resolver equipped with a two-phase excitation winding and a detection winding that generates an output corresponding to the rotation angle of the rotor, there is a reference oscillator, a frequency divider that divides the output of the reference oscillator, and a frequency divider that divides the output from the frequency divider. A two-phase oscillator that receives the frequency output and outputs a two-phase resolver excitation signal, a waveform conversion circuit that converts the phase modulation signal from the resolver detection winding into a rectangular wave, and a waveform that converts the inverted output of the counter value of the frequency divider. A first latch circuit that latches at the rising edge of the rectangular wave output of the conversion circuit and outputs it as a rotation angle, and a first latch circuit that latches the rotation angle output of the first latch circuit at the falling edge of the rectangular wave output of the waveform conversion circuit and outputs it as a rotation angle. This time, the second latch circuit outputs a rotation angle of 7, and the first and second latch circuits.
Compares the rotation angle output of the previous latch, and if the difference is greater than a predetermined positive or negative value, two comparison circuits each output a pulse signal, and one of the pulse signals of the two comparison circuits is incremented. A counter circuit that uses one signal and the other as a decrement signal to determine one rotation in the forward or reverse direction and detect the number of rotations, and a load that latches the number of rotations of this counter circuit and the rotation angle of the first latch circuit. A load position detection device using a resolver, comprising a third latch circuit that outputs a position.