CN211112495U - Driving circuit for piezoelectric ceramic piece - Google Patents
Driving circuit for piezoelectric ceramic piece Download PDFInfo
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- CN211112495U CN211112495U CN201921618283.0U CN201921618283U CN211112495U CN 211112495 U CN211112495 U CN 211112495U CN 201921618283 U CN201921618283 U CN 201921618283U CN 211112495 U CN211112495 U CN 211112495U
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Abstract
The utility model belongs to the technical field of the drive circuit and specifically relates to a drive circuit for piezoceramics piece. The driving circuit comprises a signal INPUT, a power supply VPP, a first resistor R1, a second resistor R2, a third resistor R3, a first triode Q1, a second triode Q2, a diode D1, a first capacitor C1 and a second capacitor C2. The utility model provides a drive circuit for piezoceramics piece, commonly known piezoelectricity merchant card, not only the circuit is simple, and the components and parts of use are less, and the cost is reduced can small-size arrange moreover, with drive circuit and piezoelectricity merchant card comb integration together, can save traditional merchant card and comb middle winding displacement, not only make whole sley bar can dismantle and not produce the influence to weaving the yarn way, can realize more complicated more various flower type and weave.
Description
Technical Field
The utility model belongs to the technical field of the drive circuit and specifically relates to a drive circuit for piezoceramics piece.
Background
The knitting industry has been rapidly and continuously developed in recent years. Particularly, after various piezoelectric jacquard machines appear, the realization of the knitting jacquard function advances the electronic control era, and various piezoelectric jacquard machine control systems appear on the market.
The piezoelectric ceramic plate is a knitting accessory which utilizes the piezoelectric effect principle to act on knitting equipment for jacquard, and compared with mechanical and electromagnetic functional devices, the piezoelectric ceramic plate has the advantages of stable performance, low power consumption, low noise, no electromagnetic wave interference, high working frequency, low heat and the like.
At present, in the market, a part of driving circuit boards use integrated chips, the size is large, the cost is high, the other part of the driving circuit boards uses circuits of discrete components, the number of the components is large, each piezoelectric control circuit needs at least 10 discrete components, the small-size layout cannot be realized due to the fact that the number of the driving components is too large, and the knitting equipment is limited in installation space and can only be realized by adopting a mode of separating a driving plate from an actuator.
The to-be-solved technical problem of the utility model is:
1. the existing circuit has many components, complex circuit and unrealizable small-size layout.
2. The drive circuit is connected with the jacquard comb through a lead, and the jacquard comb cannot be disassembled and cannot be flexibly arranged in a fixed position.
SUMMERY OF THE UTILITY MODEL
The utility model provides a drive circuit for piezoceramics piece, the utility model provides a technical scheme that its technical problem adopted is:
the circuit comprises a signal INPUT, a power supply VPP, a first resistor R1, a second resistor R2, a third resistor R3, a first triode Q1, a second triode Q2, a diode D1, a first capacitor C1 and a second capacitor C2. The signal INPUT is connected to one end of a second resistor R2; the other end of the second resistor R2 is connected to the base of the first triode Q1; the collector of the first triode Q1 is respectively connected with one end of the R1, the base of the second triode Q2 and the negative electrode of the diode D1; the other end of the first resistor R1 is respectively connected to the power supply VPP, the collector of the second triode Q2 and one end of the first capacitor C1; second triode Q2
The emitters are respectively connected with the anode of the diode D1 and one end of the third resistor R3; the other end of the third resistor R3 is connected to the other end of the first capacitor C1 and one end of the second capacitor C2 respectively; the emitter of the first triode Q1 is connected to the other end of the second capacitor C2 and grounded.
Specifically, the first transistor Q1 is an NPN transistor.
Specifically, the second transistor Q2 is an NPN transistor.
Specifically, the power supply VPP is a direct current power supply of 170V-180V.
Specifically, one end of the first capacitor C1 is connected to one end of the third resistor R3 and one end of the second capacitor C2, respectively, wherein the other end of the third resistor R3 is connected to the anode of the diode D1 and the emitter of the second transistor Q2, respectively; the other end of the first capacitor C1 is connected to the collector of the second transistor Q2 and one end of the first resistor R1, respectively.
One end of the second capacitor C2 is connected to the first capacitor C1 and the third resistor R3, respectively, wherein the other end of the third resistor R3 is connected to the anode of the diode D1 and the emitter of the second triode Q2, respectively; the other end of the second capacitor C2 is connected to the emitter of the first triode Q1 and grounded.
The utility model provides a drive circuit for piezoceramics piece, not only the circuit is simple, and the components and parts of use are less, and the cost is reduced, can arrange by the small-size moreover, and be in the same place piezoelectricity merchant card comb is integrated, has reduced middle connecting wire, not only makes piezoelectricity merchant card comb can dismantle and not produce the influence to weaving the yarn way, can realize more complicated more various flower type and weave.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this use novel circuit simpler, the components and parts of use are less to can cancel with the merchant card connecting wire between the comb, further the cost is reduced. Because of the device is small in quantity, can realize that drive circuit board small-size arranges, be in the same place drive circuit and piezoelectricity merchant card comb integration to realize the detachability of whole sley bar, can arrange wantonly with the ground comb, produce more weaving effects.
2. The connecting wires of the jacquard comb are reduced, the influence of the previous connecting wires on the weaving of yarn paths is avoided, and more complex and diversified patterns can be woven.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The attached drawings are simplified schematic diagrams, and only schematically illustrate the novel basic structure of the experiment.
A drive circuit for a piezoelectric ceramic piece is characterized in that: the circuit comprises a signal INPUT, a power supply VPP, a first resistor R1, a second resistor R2, a third resistor R3, a first triode Q1, a second triode Q2, a diode D1, a first capacitor C1 and a second capacitor C2. The signal INPUT is connected to one end of a second resistor R2; the other end of the second resistor R2 is connected to the base of the first triode Q1; the collector of the first triode Q1 is respectively connected with one end of the R1, the base of the second triode Q2 and the negative electrode of the diode D1; the other end of the first resistor R1 is respectively connected to the power supply VPP, the collector of the second triode Q2 and one end of the first capacitor C1; an emitter of the second triode Q2 is respectively connected with the anode of the diode D1 and one end of a third resistor R3; the other end of the third resistor R3 is connected to the other end of the first capacitor C1 and one end of the second capacitor C2 respectively; the emitter of the first triode Q1 is connected to the other end of the second capacitor C2 and grounded. The first triode Q1 is an NPN transistor. The second triode Q2 is an NPN transistor. The power supply is 170V-180V direct current power supply.
As shown in fig. 1, the circuit process of this embodiment includes the following steps: the piezoceramic wafer may be equivalent to two capacitors, the circuit having one INPUT for the signal INPUT and one OUTPUT for the signal OUTPUT. The output end is connected with the common end of the first capacitor C1 and the second capacitor C2, and the action of the piezoelectric jacquard comb is driven by changing the high-low level of the signal INPUT.
The working principle of piezoelectric jacquard is explained as follows:
1. when the signal INPUT is low, the first transistor Q1 is turned off, the dc power VPP flows to the base of the second transistor Q2 through the first resistor R1, and the second transistor Q2 is turned on. The dc power VPP is supplied from the collector to the emitter of the second transistor Q2 through the first resistor R1, and flows through the third resistor R3 to charge the piezoelectric jacquard.
2. When the signal INPUT is at a high level, the current of the signal INPUT flows to the base of the first transistor Q1 through the second resistor R2, the first transistor Q1 is turned on, and the dc power VPP flows from the collector to the emitter of the transistor through the first resistor R1 and is connected to ground. Meanwhile, the high voltage of the piezoelectric jacquard is connected to the collector flow emitter of the first triode Q1 from the anode flow cathode of the diode D1 through the third resistor R3 and is connected to the ground. In this process, the second transistor Q2 is in the off state.
The utility model provides a drive circuit for piezoceramics piece, not only the circuit is simple, and the components and parts of use are less, and the cost is reduced, can arrange by the small-size moreover, and be in the same place piezoelectricity merchant card comb is integrated, has reduced middle connecting wire, not only makes piezoelectricity merchant card comb can dismantle and not produce the influence to weaving the yarn way, can realize more complicated more various flower type and weave.
The above is the concrete implementation of the present invention, but the technical scope and the thinking concept of the present invention are not limited to this, and the technical scope must be determined according to the scope of the claims, and all the insubstantial changes of the present invention performed by this concept should belong to the act of infringing the protection scope of the present invention.
Claims (6)
1. A drive circuit for a piezoelectric ceramic piece is characterized in that: the high-voltage power supply comprises a signal INPUT, a power supply VPP, a first resistor R1, a second resistor R2, a third resistor R3, a first triode Q1, a second triode Q2, a diode D1, a first capacitor C1 and a second capacitor C2, wherein the signal INPUT is connected to one end of the second resistor R2; the other end of the second resistor R2 is connected to the base of the first triode Q1; the collector of the first triode Q1 is respectively connected with one end of the R1, the base of the second triode Q2 and the negative electrode of the diode D1; the other end of the first resistor R1 is respectively connected to the power supply VPP, the collector of the second triode Q2 and one end of the first capacitor C1; an emitter of the second triode Q2 is respectively connected with the anode of the diode D1 and one end of a third resistor R3; the other end of the third resistor R3 is connected to the other end of the first capacitor C1 and one end of the second capacitor C2 respectively; the emitter of the first triode Q1 is connected to the other end of the second capacitor C2 and grounded.
2. The driving circuit for the piezoelectric ceramic plate as claimed in claim 1, wherein: the first triode Q1 is an NPN transistor.
3. The driving circuit for the piezoelectric ceramic plate as claimed in claim 1, wherein: the second triode Q2 is an NPN transistor.
4. The driving circuit for the piezoelectric ceramic plate as claimed in claim 1, wherein: the power supply VPP is a direct current power supply of 170V-180V.
5. The driving circuit for the piezoelectric ceramic plate as claimed in claim 1, wherein: one end of the first capacitor C1 is connected to one end of the third resistor R3 and one end of the second capacitor C2, respectively, wherein the other end of the third resistor R3 is connected to the anode of the diode D1 and the emitter of the second triode Q2, respectively; the other end of the first capacitor C1 is connected to the collector of the second transistor Q2 and one end of the first resistor R1, respectively.
6. The driving circuit for the piezoelectric ceramic plate as claimed in claim 1, wherein: one end of the second capacitor C2 is connected to the first capacitor C1 and the third resistor R3, respectively, wherein the other end of the third resistor R3 is connected to the anode of the diode D1 and the emitter of the second triode Q2, respectively; the other end of the second capacitor C2 is connected to the emitter of the first triode Q1 and grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921618283.0U CN211112495U (en) | 2019-09-26 | 2019-09-26 | Driving circuit for piezoelectric ceramic piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921618283.0U CN211112495U (en) | 2019-09-26 | 2019-09-26 | Driving circuit for piezoelectric ceramic piece |
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| Publication Number | Publication Date |
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| CN211112495U true CN211112495U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921618283.0U Active CN211112495U (en) | 2019-09-26 | 2019-09-26 | Driving circuit for piezoelectric ceramic piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718421A (en) * | 2021-08-17 | 2021-11-30 | 福建杰嘉科技有限公司 | Piezoelectric ceramic wireless jacquard guide bar and warp knitting machine |
-
2019
- 2019-09-26 CN CN201921618283.0U patent/CN211112495U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718421A (en) * | 2021-08-17 | 2021-11-30 | 福建杰嘉科技有限公司 | Piezoelectric ceramic wireless jacquard guide bar and warp knitting machine |
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