JPH0292815U

JPH0292815U -

Info

Publication number: JPH0292815U
Application number: JP228489U
Authority: JP
Priority date: 1989-01-11
Filing date: 1989-01-11
Publication date: 1990-07-24

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すブロツク図、
第２図は第１図に示す信号発生回路のタイムチヤ
ート、第３図は従来の一例を示すブロツク図であ
る。１……エンコーダ、２……デジスイツチ、３…
…ｎ進カウンタ、４……シフトレジスタ、５……
一致回路、６……ＰＬＬ回路、７……アツプダウ
ンカウンタ、８……Ｄ／Ａ変換回路、９……分周
カウンタ。ａ……原点信号、ｂ……回転角信号、ｃ……ス
イツチ信号、ｄ……キヤリー信号、ｅ，ｆ，ｇ…
…シフト信号、ｈ……カウントアツプ信号、ｉ…
…カウント信号、ｊ……カウント値信号、ｋ……
アナログ信号、ｌ……分周信号。 FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a time chart of the signal generating circuit shown in FIG. 1, and FIG. 3 is a block diagram showing a conventional example. 1...Encoder, 2...Digital switch, 3...
...N-ary counter, 4...Shift register, 5...
Matching circuit, 6... PLL circuit, 7... Up/down counter, 8... D/A conversion circuit, 9... Frequency division counter. a... Origin signal, b... Rotation angle signal, c... Switch signal, d... Carry signal, e, f, g...
...Shift signal, h...Count up signal, i...
...Count signal, j...Count value signal, k...
Analog signal, l...divided signal.

Claims

[Claims for Utility Model Registration] (A) An encoder that generates an origin signal of one pulse per rotation and a rotation angle signal that divides the rotation angle into equal angles; (B) Generates a switch signal corresponding to a set value. (C) an n-ary counter that counts the rotation angle signal from the origin signal and generates a carry signal when the counted value reaches the switch signal; (D) an n-ary counter that counts the rotation angle signal from the origin signal; a shift register that outputs first, second, and third shift signals that are set by the fourth carry signal and reset by the origin signal; (E) the first shift signal and the second shift signal; (F) a matching circuit that outputs an active count-up signal when the logic of the signals matches; (F) a PLL that converts the frequency of the rotation angle signal and outputs a count signal synchronized with the rotation angle signal;
(G) an up-down counter that counts up the count signal when the count-up signal is active, counts down the count signal when the count-up signal is inactive, and outputs a count value signal while the third shift signal is inactive; H) A D/A converter that converts the count value signal into an analog signal.