CN201910790U - Decoding circuit of rotary encoder - Google Patents
Decoding circuit of rotary encoder Download PDFInfo
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- CN201910790U CN201910790U CN2010206899691U CN201020689969U CN201910790U CN 201910790 U CN201910790 U CN 201910790U CN 2010206899691 U CN2010206899691 U CN 2010206899691U CN 201020689969 U CN201020689969 U CN 201020689969U CN 201910790 U CN201910790 U CN 201910790U
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Abstract
A decoding circuit of a rotary encoder comprises an input end A, an input end B, an output end E, an output end F, two triggers D, two three-input AND gates and three phase inverters. The decoding circuit is combined with the rotary encoder to replace a potentiometer used in the early stage and a button in a later digital control circuit, and has the advantages of randomly changeable rotating speed, convenience in adjustment, long service life and low cost compared with an automatic control sliding block.
Description
Technical field
The utility model relates to the decoder circuit technical field, is specifically related to be used for the decoding circuit of rotary encoder.
Background technology
Early stage what use is parameters such as potentiometer regulation voltage or electric current, is the mechanical conductive contact chip change resistance value of sliding on resistive element because potentiometer uses.If the contact chip of slide block and resistive element contact resistance become big or disconnect in use for some time, will cause the fluctuation of electric power output voltage, life of product there is very big influence, even when out-put supply changes significantly, also can burns subscriber equipment.Its advantage is that the user can arbitrarily change the rotation speed, and is easy to adjust.Along with development of science and technology, digitized processing is applied to power source products, by the Digital Circuit Control electric current and voltage, and with computer current use with automatic control system in, increase work efficiency greatly.But use potentiometer to be unfavorable for control able to programme (control slide block cost height automatically, and damaged).Adopt two buttons (increase, reduces) by CPU control voltage or electric current and other more parameters.Button long service life, and the user does not regulate electric current and voltage when having gone bad, and the equipment that out-put supply can the influence of fluctuations user use.Maximum shortcoming is with whenever by once can only unit of increment, regulates when meticulous very loaded down with trivial detailsly, as the voltage of control output 1000V, whenever by once increasing or reduce 1V, adjusts from 0V to 1000V so, and the user will be by 1000 buttons.
Occurred rotary encoder afterwards, it is by the change transitions of mechanical angle physical quantity being become a kind of device of the signal of telecommunication; In the classification of transducer, he belongs to angular displacement sensor.The rotary encoder elementary diagram as shown in Figure 1.By rotating handles, Nei Bu two switch alternate runs wherein.Output signal has three terminals of A, B, C to constitute, and C is a common, and signal (revolve turn around 24,36 or more pulse output) is judged in A, B output.Signal output waveform as shown in Figure 2.The A output square-wave pulse that clockwise rotates when rotary encoder leading with 90 ° at B end, B holds leading A to hold 90 ° when being rotated counterclockwise on the contrary.So just need the phase demodulation demodulation to export clockwise pulse and pulse counterclockwise respectively.As shown in Figure 3, sort signal also needs to decode actual use waveform signal, so that turn clockwise counting circuit and be rotated counterclockwise counting circuit identification.
Comprehensive above design feature is used selection rotary encoder replacing key-press at system control cpu, can be to be beneficial to the pulse signal that digital circuit is handled and export as potentiometer by Spin Control.Only need decoding clockwise or counterclockwise just can very simple replacing key-press.
Summary of the invention
The technical problems to be solved in the utility model is: the decoding circuit that provides a kind of rotary encoder to use, the purpose of realization rotary encoder replacing key-press in different control circuits.
To achieve the above object of the invention, the technical scheme that the utility model adopted is:
The decoding circuit of rotary encoder comprises A input, B input, E output, F output, two d type flip flops, two three inputs and door and three inverters;
The A input is connected respectively to the D input port of first d type flip flop and the D input port of second d type flip flop,
The B input is connected respectively to the input port of first inverter and the trailing edge of second d type flip flop triggers port,
The trailing edge that the delivery outlet port of first inverter is connected respectively to first d type flip flop triggers the input port of the input port of port, the one or three input and door and the two or three input and door,
The Q output port of first d type flip flop and second d type flip flop is connected to the input port of the one or three input and door, first d type flip flop and second d type flip flop
Output port is connected to the input port of the two or three input and door,
The one or three input is connected to the E output with the output port of door by second inverter,
The two or three input is connected to the F output with the output port of door 106 by the 3rd inverter.
This practical beneficial effect is: combine with rotary encoder, replace early stage potentiometer that uses and the button in the digital control circuit afterwards, have and arbitrarily to change rotation speed, advantage easy to adjust, long service life, cost are controlled the low advantage of slide block more automatically.
Description of drawings
Fig. 1 is the rotary encoder schematic diagram;
Fig. 2 is the rotary encoder output signal;
Fig. 3 is decoding circuit signal output waveform figure of the present utility model;
Fig. 4 is decoding circuit figure of the present utility model;
Fig. 5 is an application example structured flowchart of the present utility model;
Wherein, 1, the decoding circuit of rotary encoder, 101, first inverter, 102, first d type flip flop, the 103, the 1 input and door, 104, second inverter, 105, the 3rd inverter, the 106, the 23 input and door, 107, second d type flip flop, 2, rotary encoder, 3, other control circuit.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done and to be described in detail:
The decoding circuit of rotary encoder comprises A input, B input, E output, F output, two d type flip flops, two three inputs and door and three inverters;
The A input is connected respectively to the D input port of first d type flip flop 102 and the D input port of second d type flip flop 107,
The B input is connected respectively to the input port of first inverter 101 and the trailing edge of second d type flip flop 107 triggers port,
The trailing edge that the delivery outlet port of first inverter 101 is connected respectively to first d type flip flop 102 triggers the input port of the input port of port, the one or three input and door 103 and the two or three input and door 106,
The Q output port of first d type flip flop 102 and second d type flip flop 107 is connected to the input port of the one or three input and door 103, first d type flip flop 102 and second d type flip flop 107
Output port is connected to the input port of the two or three input and door 106,
The one or three input is connected to the E output with the output port of door 103 by second inverter 104,
The two or three input is connected to the F output with the output port of door 106 by the 3rd inverter 105.
The A input of the decoding circuit 1 of rotary encoder links to each other with the A of rotary encoder 2 end, the B end of B input and rotary encoder 2 links to each other, the E output is connected to the counting circuit that turns clockwise of other control circuit 3, and the F output is connected to the counting circuit that is rotated counterclockwise of other control circuit 3.Realize replacing the function of button in the electrical apparatus control circuit.
The utility model is not limited to above-mentioned example, in claims of the present utility model institute restricted portion, and various distortion that those skilled in the art can make without creative work or revise the protection that all is subjected to this patent.
Claims (1)
1. the decoding circuit of rotary encoder is characterized in that: comprise A input, B input, E output, F output, two d type flip flops, two three inputs and door and three inverters;
The A input is connected respectively to the D input port of first d type flip flop (102) and the D input port of second d type flip flop (107),
The B input is connected respectively to the input port of first inverter (101) and the trailing edge of second d type flip flop (107) triggers port,
The delivery outlet port of first inverter (101) is connected respectively to trailing edge triggering port, the one or three input and the input port of (103) and the input port of the two or three input and door (106) of first d type flip flop (102),
The Q output port of first d type flip flop (102) and second d type flip flop (107) is connected to the input port of the one or three input and door (103), first d type flip flop (102) and second d type flip flop (107)
Output port is connected to the input port of the two or three input and door (106),
The one or three input is connected to the E output with the output port of door (103) by second inverter (104),
The two or three input is connected to the F output with the output port of door (106) by the 3rd inverter (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206899691U CN201910790U (en) | 2010-12-30 | 2010-12-30 | Decoding circuit of rotary encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206899691U CN201910790U (en) | 2010-12-30 | 2010-12-30 | Decoding circuit of rotary encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201910790U true CN201910790U (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206899691U Expired - Lifetime CN201910790U (en) | 2010-12-30 | 2010-12-30 | Decoding circuit of rotary encoder |
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| CN (1) | CN201910790U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609012A (en) * | 2012-04-13 | 2012-07-25 | 柳州职业技术学院 | Synchronous speed controller |
| CN104776793A (en) * | 2014-12-18 | 2015-07-15 | 宁波宏大纺织仪器有限公司 | Detection circuit for angle encoder |
| CN105450231A (en) * | 2015-12-04 | 2016-03-30 | 浙江佳乐科仪股份有限公司 | Collecting electrode encoder decoding circuit |
| TWI588450B (en) * | 2015-04-21 | 2017-06-21 | Murata Manufacturing Co | Encoder |
-
2010
- 2010-12-30 CN CN2010206899691U patent/CN201910790U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609012A (en) * | 2012-04-13 | 2012-07-25 | 柳州职业技术学院 | Synchronous speed controller |
| CN104776793A (en) * | 2014-12-18 | 2015-07-15 | 宁波宏大纺织仪器有限公司 | Detection circuit for angle encoder |
| CN104776793B (en) * | 2014-12-18 | 2017-08-08 | 宁波宏大纺织仪器有限公司 | A kind of detection circuit of angular encoder |
| TWI588450B (en) * | 2015-04-21 | 2017-06-21 | Murata Manufacturing Co | Encoder |
| CN105450231A (en) * | 2015-12-04 | 2016-03-30 | 浙江佳乐科仪股份有限公司 | Collecting electrode encoder decoding circuit |
| CN105450231B (en) * | 2015-12-04 | 2018-12-07 | 浙江佳乐科仪股份有限公司 | A kind of collector encoder decoding circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU SIWI POWER ELECTRONICS TECHNOLOGY CO., LTD Free format text: FORMER NAME: CHENGDU SIWI AVIATION POWER SUPPLY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 3, No. 1, building 1, building 35, 610091 west slope Su Road, Chengdu, Sichuan Patentee after: CHENGDU SIWI POWER ELECTRONIC TECHNOLOGY CO., LTD. Address before: 610091 Sichuan province Chengdu City Temple four electronic cutch building 3 floor Patentee before: Chengdu SIWI Aviatic Power Supply Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |