CN209885033U - Output circuit of electric acupuncture apparatus - Google Patents
Output circuit of electric acupuncture apparatus Download PDFInfo
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- CN209885033U CN209885033U CN201920424190.8U CN201920424190U CN209885033U CN 209885033 U CN209885033 U CN 209885033U CN 201920424190 U CN201920424190 U CN 201920424190U CN 209885033 U CN209885033 U CN 209885033U
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Abstract
The utility model discloses an output circuit of electric acupuncture apparatus, include: the device comprises a buffer unit, a power amplifier chip, a transformer and a change-over switch; the input end of the buffer unit is connected with the pulse generator, the output end of the buffer unit is connected with the input end of the power amplifier chip, the output end of the power amplifier chip is connected with the primary coil of the transformer, and the secondary coil of the transformer is connected with the change-over switch. The utility model provides a technical scheme can export more stable, safer pulse wave, improves user's service quality.
Description
Technical Field
The utility model belongs to the technical field of the electron, especially, relate to an output circuit of electric acupuncture instrument.
Background
The electric acupuncture apparatus is a kind of Chinese medical diagnosis and treatment equipment which can electrically stimulate the specific acupoints of human body instead of acupuncture technique, and the basic principle of electric stimulation is to output pulse waves with controllable frequency and intensity at the acupoints of human body. At present, the electric acupuncture apparatus has been widely used in home health care, and a user can conveniently perform electrotherapy operation at home.
The output signal of the existing electric acupuncture apparatus is easy to be interfered, so that the output parameter of the pulse wave is unstable, and the treatment effect of the user is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an output circuit of electric acupuncture appearance can export more stable, safer pulse wave, improves user's use quality.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses an output circuit of electric acupuncture apparatus, include: the device comprises a buffer unit, a power amplifier chip, a transformer and a change-over switch; the input end of the buffer unit is connected with the pulse generator, the output end of the buffer unit is connected with the input end of the power amplifier chip, the output end of the power amplifier chip is connected with the primary coil of the transformer, and the secondary coil of the transformer is connected with the change-over switch; the buffer unit comprises a resistor R35, a resistor R36, a resistor R40, a capacitor C40 and a capacitor C41; one end of the resistor R35 is connected with the pulse generator, and the other end of the resistor R35 is respectively connected with one end of the resistor R36 and one end of the capacitor C40; the other end of the resistor R36 is respectively connected with one end of a capacitor C41, one end of a resistor R40 and the input end of the power amplifier chip; the other end of the capacitor C40, the other end of the capacitor C41, and the other end of the resistor R40 are grounded.
Preferably, the main control chip of the electric acupuncture apparatus is a chip X1000; one end of the resistor R35 is connected with the 18 th pin of the main control chip.
Preferably, the power amplifier chip is a chip HT 6879; the step-up ratio of the transformer is 1: 10; the 1 st pin of the power amplifier chip is grounded through a capacitor C19; the 2 nd pin of the power amplifier chip is connected with the 68 th pin of the main control chip, and the 3 rd pin of the power amplifier chip is connected with the 62 nd pin of the main control chip; the 4 th pin of the power amplifier chip is grounded through a capacitor C37; the 5 th pin of the power amplifier chip is connected with the output end of the buffer unit; the 9 th pin of the power amplifier chip is connected with one end of a resistor R32, and the other end of a resistor R32 is respectively connected with one end of the primary coil of the transformer, one end of a capacitor C22 and one end of a capacitor C29; the other end of the capacitor C22 is connected with the other end of the primary coil of the transformer, and the other end of the capacitor C29 is grounded; the 6 th pin of the power amplifier chip is connected with one end of a connecting resistor R37, and the other end of a resistor R37 is respectively connected with one end of a capacitor C34 and the other end of the primary coil of the transformer; the other end of the capacitor C34 is grounded; two ends of the secondary coil of the transformer are connected through a resistor R29, and two ends of a resistor R29 are connected with the change-over switch.
Furthermore, the 7 th pin and the 8 th pin of the power amplifier chip are also connected through a capacitor C25.
Furthermore, the number of the power amplifier chips is 6, each power amplifier chip is connected with one transformer, and a secondary coil of each transformer is connected with one change-over switch.
The utility model provides an electric acupuncture instrument's output circuit makes it through a buffer unit before pulse signal input power amplifier chip, simultaneously, chooses the power amplifier chip of dual input, dual output for use, can obtain more stable, safer output signal to improve the user to the use quality of electric acupuncture instrument.
Drawings
Fig. 1 is a schematic diagram of an output circuit according to an embodiment of the present invention;
fig. 2 is a block diagram of an output circuit according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a master control chip of the electric acupuncture apparatus in the embodiment of the present invention;
fig. 4 is a schematic diagram of a six-way output circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, includes: the device comprises a buffer unit, a power amplifier chip, a transformer and a change-over switch; the input end of the buffer unit is connected with the pulse generator, the output end of the buffer unit is connected with the input end of the power amplifier chip, the output end of the power amplifier chip is connected with the primary coil of the transformer, and the secondary coil of the transformer is connected with the change-over switch.
In this embodiment, the buffer unit includes a resistor R35, a resistor R36, a resistor R40, a capacitor C40, and a capacitor C41; one end of the resistor R35 is connected with the pulse generator, and the other end of the resistor R35 is respectively connected with one end of the resistor R36 and one end of the capacitor C40; the other end of the resistor R36 is respectively connected with one end of a capacitor C41, one end of a resistor R40 and the input end of the power amplifier chip; the other end of the capacitor C40, the other end of the capacitor C41, and the other end of the resistor R40 are grounded.
In this embodiment, the main control chip of the electric acupuncture apparatus is a chip X1000; one end of the resistor R35 is connected with the 18 th pin of the main control chip and receives the pulse wave generated by the main control chip.
In this embodiment, the power amplifier chip is a chip HT 6879; the step-up ratio of the transformer is 1: 10; the 1 st pin of the power amplifier chip is grounded through a capacitor C19; the 2 nd pin of the power amplifier chip is connected with the 68 th pin of the main control chip, and the 3 rd pin of the power amplifier chip is connected with the 62 nd pin of the main control chip; the 4 th pin of the power amplifier chip is grounded through a capacitor C37; the 5 th pin of the power amplifier chip is connected with the output end of the buffer unit; the 9 th pin of the power amplifier chip is connected with one end of a resistor R32, and the other end of a resistor R32 is respectively connected with one end of the primary coil of the transformer, one end of a capacitor C22 and one end of a capacitor C29; the other end of the capacitor C22 is connected with the other end of the primary coil of the transformer, and the other end of the capacitor C29 is grounded; the 6 th pin of the power amplifier chip is connected with one end of a connecting resistor R37, and the other end of a resistor R37 is respectively connected with one end of a capacitor C34 and the other end of the primary coil of the transformer; the other end of the capacitor C34 is grounded; two ends of the secondary coil of the transformer are connected through a resistor R29, and two ends of a resistor R29 are connected with the change-over switch.
Furthermore, the 7 th pin and the 8 th pin of the power amplifier chip are also connected through a capacitor C25, so that the stability and the safety of the output circuit are improved.
Furthermore, the number of the power amplifier chips is 6, each power amplifier chip is connected with one transformer, and a secondary coil of each transformer is connected with one change-over switch, so that the electric acupuncture apparatus has 6 paths of outputs, and each path of output can be controlled to be switched on and switched off through the corresponding change-over switch, thereby further improving the safety of the electric acupuncture apparatus.
The utility model provides an electric acupuncture instrument's output circuit makes it through a buffer unit before pulse signal input power amplifier chip, simultaneously, chooses the power amplifier chip of dual input, dual output for use, can obtain more stable, safer output signal to improve the user to the use quality of electric acupuncture instrument.
Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (5)
1. An output circuit of an electric acupuncture apparatus, comprising: the device comprises a buffer unit, a power amplifier chip, a transformer and a change-over switch; the input end of the buffer unit is connected with the pulse generator, the output end of the buffer unit is connected with the input end of the power amplifier chip, the output end of the power amplifier chip is connected with the primary coil of the transformer, and the secondary coil of the transformer is connected with the change-over switch;
the buffer unit comprises a resistor R35, a resistor R36, a resistor R40, a capacitor C40 and a capacitor C41; one end of the resistor R35 is connected with the pulse generator, and the other end of the resistor R35 is respectively connected with one end of the resistor R36 and one end of the capacitor C40; the other end of the resistor R36 is respectively connected with one end of a capacitor C41, one end of a resistor R40 and the input end of the power amplifier chip; the other end of the capacitor C40, the other end of the capacitor C41, and the other end of the resistor R40 are grounded.
2. The output circuit of the electric acupuncture instrument according to claim 1, wherein the main control chip of the electric acupuncture instrument is a chip X1000; one end of the resistor R35 is connected with the 18 th pin of the main control chip.
3. The output circuit of the electric acupuncture apparatus of claim 2, wherein the power amplifier chip is a chip HT 6879; the step-up ratio of the transformer is 1: 10; the 1 st pin of the power amplifier chip is grounded through a capacitor C19; the 2 nd pin of the power amplifier chip is connected with the 68 th pin of the main control chip, and the 3 rd pin of the power amplifier chip is connected with the 62 nd pin of the main control chip; the 4 th pin of the power amplifier chip is grounded through a capacitor C37; the 5 th pin of the power amplifier chip is connected with the output end of the buffer unit; the 9 th pin of the power amplifier chip is connected with one end of a resistor R32, and the other end of a resistor R32 is respectively connected with one end of the primary coil of the transformer, one end of a capacitor C22 and one end of a capacitor C29; the other end of the capacitor C22 is connected with the other end of the primary coil of the transformer, and the other end of the capacitor C29 is grounded; the 6 th pin of the power amplifier chip is connected with one end of a resistor R37, and the other end of a resistor R37 is respectively connected with one end of a capacitor C34 and the other end of the primary coil of the transformer; the other end of the capacitor C34 is grounded; two ends of the secondary coil of the transformer are connected through a resistor R29, and two ends of a resistor R29 are connected with the change-over switch.
4. The output circuit of the electric acupuncture instrument of claim 3, wherein the 7 th pin and the 8 th pin of the power amplifier chip are further connected through a capacitor C25.
5. The output circuit of the electric acupuncture apparatus of claim 1, wherein there are 6 power amplifier chips, each of the power amplifier chips is connected to one of the transformers, and a secondary winding of each of the transformers is connected to one of the switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920424190.8U CN209885033U (en) | 2019-03-29 | 2019-03-29 | Output circuit of electric acupuncture apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920424190.8U CN209885033U (en) | 2019-03-29 | 2019-03-29 | Output circuit of electric acupuncture apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209885033U true CN209885033U (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920424190.8U Active CN209885033U (en) | 2019-03-29 | 2019-03-29 | Output circuit of electric acupuncture apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209885033U (en) |
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2019
- 2019-03-29 CN CN201920424190.8U patent/CN209885033U/en active Active
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