CN202735775U - Control circuit and control device for flat knitting machine needle selector - Google Patents
Control circuit and control device for flat knitting machine needle selector Download PDFInfo
- Publication number
- CN202735775U CN202735775U CN 201220351134 CN201220351134U CN202735775U CN 202735775 U CN202735775 U CN 202735775U CN 201220351134 CN201220351134 CN 201220351134 CN 201220351134 U CN201220351134 U CN 201220351134U CN 202735775 U CN202735775 U CN 202735775U
- Authority
- CN
- China
- Prior art keywords
- chip
- drv8844
- capacitor
- flat knitting
- knitting machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Knitting Machines (AREA)
Abstract
The utility model discloses a control circuit and a control device for a flat knitting machine needle selector. The control circuit comprises a decoding chip, a capacitor C1, a capacitor C2 and a TI chip DRV8844, wherein the decoding chip is connected with a control end of the TI chip DRV8844, the capacitor C1 is connected between a first turning pin and a second turning pin of the TI chip DRV8844, one end of the capacitor C2 is connected with a third turning pin of the TI chip DRV8844, the other end of the capacitor C2 is connected with a driving power, and an output end of the TI chip DRV8844 is connected with the flat knitting machine needle selector. An output of the chip DRV8844 of a TI company has a load short circuit protection function, and inner protection can be carried out if load is in a short circuit state; a control signal decoded by a chip 74HC259D of an NXP company can directly drive the chip DRV8844 of the TI company, so cost is saved when isolation is not required; one needle selector can be driven by only two chips DRV8844 of the TI company, and peripheral components are a few.
Description
Technical field
The utility model relates to control circuit and the control device of needle selecting device for flat knitting machine.
Background technology
Existing technology control mode is: a slide cam selector has 8 blades (coil) to control the action of blade by metal-oxide-semiconductor conducting or cut-off.Defective or deficiency that it mainly exists are: metal-oxide-semiconductor does not have short-circuit protection function, very easily MOS is punctured if be responsible for short-circuit conditions; The driving of metal-oxide-semiconductor need to add light-coupled isolation, has increased cost; Action needs+the 24V of slide cam selector blade reaches-24V, and metal-oxide-semiconductor also needs P raceway groove and N raceway groove, and driving a slide cam selector needs 16 light-coupled isolations of 16 metal-oxide-semiconductors, and the many peripheral cells of device model are many.
Summary of the invention
For above-mentioned technological deficiency, the utility model proposes control circuit and the control device of needle selecting device for flat knitting machine.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows:
The control circuit of needle selecting device for flat knitting machine comprises decoding chip, capacitor C 1, capacitor C 2 and TI chip DRV8844; Described decoding chip connects the control end of described TI chip DRV8844, connect described capacitor C 1 between the 1st turning of described TI chip DRV8844 and the 2nd turning, one end of described capacitor C 2 connects the 3rd turning of TI chip DRV8844, the other end connects driving power, and the output terminal of described TI chip DRV8844 connects needle selecting device for flat knitting machine.
Further, described decoding chip is chip 74HC259D, and described chip 74HC259D connects 8 road control pins of chip DRV8844; Described capacitor C 1 is the pump electric capacity of TI chip DRV8844.
Further, described capacitor C 1 is 103P, and described capacitor C 2 is 104P.
The control device of needle selecting device for flat knitting machine comprises two control circuits.
The beneficial effects of the utility model are: the chip DRV8844 output of TI company has load short circuit protection function, and inside is protected if load has the short circuit meeting; The control signal that the chip 74HC259D of NXP company decodes out can directly drive the chip DRV8844 of TI company, does not need isolation to save cost; Driving a slide cam selector only needs chip DRV8844 and the peripheral cell of 2 TI companies few.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further.
The necessary components and parts of the utility model forming circuit product have: the chip DRV8844 of TI company, decoding chip and electric capacity.
Embodiment one
As shown in Figure 1, the utility model comprises one of the chip DRV8844 of TI company, 1 one of 103P capacitor C, 2 one of 104P capacitor C and decoding chip 74HC259D.
Concrete annexation is as follows: 8 road control pins of the decoding model connection-core sheet DRV8844 of decoding chip 74HC259D, come the output control of control chip DRV8844; Wherein 103P capacitor C 1 connects between the 1st turning and the 2nd turning of chip DRV8844, is the pump electric capacity of chip DRV8844; 104P capacitor C 2 one ends connect the other end connection+24V of the 3rd turning of chip DRV8844, the A0 of decoding chip 74HC259D, A1, the address model of A2 for controlling; DATA is data-signal; Y1 is chip selection signal; The XZOUT1 of chip DRV8844, XZOUT2, XZOUT3, XZOUT4 connect needle selecting device for flat knitting machine for output.
Because chip DRV8844 output has load short circuit protection function, inside is protected if load has the short circuit meeting; Decoding control signal out can directly drive chip DRV8844, does not need isolation to save cost; Driving a needle selecting device for flat knitting machine only needs two identical control circuits among Fig. 1 to get final product, and XZOUT5, the XZOUT6, XZOUT7, the XZOUT8 that are about to the chip DRV8844 of another control circuit connect in addition four links of needle selecting device for flat knitting machine.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, without departing from the concept of the premise utility; can also make some improvements and modifications, these improvements and modifications also should be considered as in the utility model protection domain.
Claims (4)
1. the control circuit of needle selecting device for flat knitting machine is characterized in that, comprises decoding chip, capacitor C 1, capacitor C 2 and chip DRV8844; Described decoding chip connects the control end of described chip DRV8844, connect described capacitor C 1 between the 1st turning of described chip DRV8844 and the 2nd turning, one end of described capacitor C 2 connects the 3rd turning of chip DRV8844, the other end connects driving power, and the output terminal of described chip DRV8844 connects needle selecting device for flat knitting machine.
2. the control circuit of needle selecting device for flat knitting machine according to claim 1 is characterized in that, described decoding chip is chip 74HC259D, and described chip 74HC259D connects 8 road control pins of chip DRV8844; Described capacitor C 1 is the pump electric capacity of chip DRV8844.
3. the control circuit of needle selecting device for flat knitting machine according to claim 2 is characterized in that, described capacitor C 1 is 103P, and described capacitor C 2 is 104P.
4. the control device of needle selecting device for flat knitting machine is characterized in that, comprises the control circuit of two needle selecting device for flat knitting machines claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351134 CN202735775U (en) | 2012-07-19 | 2012-07-19 | Control circuit and control device for flat knitting machine needle selector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351134 CN202735775U (en) | 2012-07-19 | 2012-07-19 | Control circuit and control device for flat knitting machine needle selector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202735775U true CN202735775U (en) | 2013-02-13 |
Family
ID=47661460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220351134 Expired - Fee Related CN202735775U (en) | 2012-07-19 | 2012-07-19 | Control circuit and control device for flat knitting machine needle selector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202735775U (en) |
-
2012
- 2012-07-19 CN CN 201220351134 patent/CN202735775U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102931971B (en) | Three-state control signal input/output (IO) circuit | |
| CN202735775U (en) | Control circuit and control device for flat knitting machine needle selector | |
| CN201113376Y (en) | Direct-current power supply and electronic equipment possessing the direct-current power supply | |
| CN202975764U (en) | Mobile mechanical intelligent controller based on CANopen | |
| CN103501173A (en) | Pull-up resistor circuit for preventing inverse current transmission and input-output port circuit | |
| CN204792788U (en) | Electric leakage protection circuit | |
| CN201323560Y (en) | High-capacity switch driving circuit | |
| CN101989073B (en) | Relay control circuit and relay control system | |
| CN204030577U (en) | A kind of surge impact protection circuit for direct current machine and air conditioner | |
| CN204400466U (en) | A kind of integrated relay for controlling hoisting crane | |
| CN203307566U (en) | Coil type needle selector driving device | |
| CN203574370U (en) | Power supply filtering/energy storage circuit | |
| CN201584761U (en) | Overvoltage detection circuit | |
| CN206946227U (en) | Midsequent control circuit | |
| CN204407866U (en) | A kind of motor | |
| CN204795568U (en) | Cell -phone audio interface communication equipment with from adaption function | |
| CN203537368U (en) | Pull-up resistor circuit capable of preventing reverse current transmission | |
| CN204947911U (en) | Intelligent power module and air conditioner | |
| CN203618116U (en) | A contactless-electronic-horn-used reversal-connection-preventing circuit made of MOS pipes | |
| CN202586965U (en) | Charge pump and transmitting device employing charge pump | |
| CN202190241U (en) | Limiting tube-shaped motor for multiple parallel-connection machinery | |
| CN103701198B (en) | A kind of DC circuit and direct-flow electricity utilization apparatus | |
| CN201332257Y (en) | Power protecting circuit and TV set with the circuit | |
| CN202339492U (en) | Protection circuit for enhancing robustness of control interface circuit | |
| CN203070020U (en) | Toggle switch circuit structure |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 310053 Binjiang District East Road No. 1805 Patentee after: Hangzhou Comfirmware Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310053 Binjiang District East Road No. 1805 Patentee before: ConfirmWare Technology (Hangzhou) Incorporated |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20180719 |