CN104027888B - A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits - Google Patents
A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits Download PDFInfo
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- CN104027888B CN104027888B CN201410304067.4A CN201410304067A CN104027888B CN 104027888 B CN104027888 B CN 104027888B CN 201410304067 A CN201410304067 A CN 201410304067A CN 104027888 B CN104027888 B CN 104027888B
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Abstract
The invention discloses a kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits, including port a, described port a is connected on the input of bridge rectifier, the outfan of described bridge rectifier is connected on the negative pole of diode, the negative pole of described diode is connected with first pin of three terminal regulator LM7815, first pin of described three terminal regulator LM7815, it is connected to the first decoupling circuit on 3rd pin, second decoupling circuit, on described port a, connection has resettable fuse, the outfan of described bridge rectifier is connected on port b, the first described decoupling circuit, second decoupling circuit all includes the first electric capacity and the second electric capacity, the first described electric capacity and the second electric capacity are in parallel and a common end grounding, described diode is commutation diode.Have an advantage in that: safety is high, can avoid electrostatic that circuit is disturbed.
Description
Technical field
The present invention relates to power circuit field, in particular it relates to a kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits.
Background technology
Electro-therapeutic apparatus of intermediate frequency is by the electric current of intermediate frequency of low frequency modulations.The most both remained the feature of low-frequency electrical, played again the feature of medium frequency electric, electrotherapy have analgesia, detumescence, antiinflammatory, desensitize, alleviate muscle spasm, strengthen tissue tension, promote recover the therapeutical effect such as normal nerve conduction and regulatory function.Electrode slice is one of critically important parts of electro-therapeutic apparatus of intermediate frequency.Its direct and human contact, alternating current power supply is powered directly to electrode slice by power supply processing circuit, due to human body institute static electrification, its voltage may be up to hundreds of several kilovolts, especially in dry environment, easily produce backflow by electrode slice, electrode slice controller or other electronic components are damaged.
Summary of the invention
It is high that the technical problem to be solved is to provide a kind of safety, can avoid the single-minded kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits that circuit is disturbed by electrostatic.
The present invention solves the problems referred to above and be the technical scheme is that
A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits, including port a, described port a is connected on the input of bridge rectifier, the outfan of described bridge rectifier is connected on the positive pole of diode, the negative pole of described diode is connected with first pin of three terminal regulator LM7815, first pin of described three terminal regulator LM7815, it is connected to the first decoupling circuit on 3rd pin, second decoupling circuit, on described port a, connection has resettable fuse, the outfan of described bridge rectifier is connected on port b, the first described decoupling circuit, second decoupling circuit all includes the first electric capacity and the second electric capacity, the first described electric capacity and the second electric capacity are in parallel and a common end grounding, described diode is commutation diode.LM7815 is three terminal regulator, and its first pin, the second pin and the 3rd pin are respectively pin Input, pin GND and pin Ouput.In the present invention, port a is connected on power supply, i.e. in alternating current power supply, commutation diode is sent to after bridge rectifier rectification, commutation diode has unilateal conduction performance, it allows electric current to flow to three terminal regulator LM7815 end from bridge rectifier end, and three terminal regulator LM7815 i.e. exports the power voltage supply pole piece of 15V and uses.Owing to rectification diode has one-way transmission, the electrostatic induced current that on its electrode slice, electrostatic potential produces will not reflux, i.e. circuit or electrode slice controller will not be damaged by the electrostatic of human body, i.e. its safety is high, uses reliable.Three terminal regulator LM7815 produces the voltage of 15V, i.e. the controller of electrode slice needs voltage.Port b produces a pulsating volage, and the controller being supplied directly to electrode slice uses so that electrode slice is Tong Bu with the control signal of controller.Voltage input end and voltage output end at three terminal regulator LM7815 connect the first decoupling circuit and the second decoupling circuit respectively, and decoupling circuit filters high-frequency signal, change the transient response of circuit, the stability of intensifier circuit.Whole circuit is protected by resettable fuse, and when short circuit or overload occurs in circuit, resettable fuse disconnects automatically to be protected circuit.
As preferably, described diode is IN4007.Commutation diode uses IN4007, and it has stronger forward surge ability to bear and low reverse current leakage, can improve the overall performance of circuit.
As preferably, described the first electric capacity, the capacitance of the second electric capacity are respectively 0.1 μ f, 10 μ f..Using the electric capacity of 0.1 μ f, its capacitance is little, can effectively reduce power supply high frequency internal resistance.First electric capacity and the second electric capacity parallel connection constitute decoupling circuit, its capacitance small one and large one, utilize big capacitance electric capacity little to low frequency signal capacitive reactance, the characteristic that low-capacitance electric capacity is little to high-frequency signal capacitive reactance, reduce the interference of power supply.
To sum up, the invention has the beneficial effects as follows:
1, the present invention utilizes bridge rectifier that power supply is carried out rectification; and rectified diode process after export and produce the output of 15V voltage to three terminal regulator LM7815; owing to commutation diode has signal one-way transmission; static electricity on human body will not be refluxed; i.e. electrode slice controller or other electronic components are protected, it is to avoid it is damaged by electrostatic.
2, the present invention can prevent electrostatic from refluxing, and electrostatic can be avoided to disturb circuit, and safety is high.
3, the circuit structure of the present invention is simple, cheap for manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is made detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits as shown in Figure 1, including port a, described port a is connected on the input of bridge rectifier, the outfan of described bridge rectifier is connected on the positive pole of diode, the negative pole of described diode is connected with first pin of three terminal regulator LM7815, first pin of described three terminal regulator LM7815, it is connected to the first decoupling circuit on 3rd pin, second decoupling circuit, on described port a, connection has resettable fuse, the outfan of described bridge rectifier is connected on port b, the first described decoupling circuit, second decoupling circuit all includes the first electric capacity and the second electric capacity, the first described electric capacity and the second electric capacity are in parallel and a common end grounding, described diode is commutation diode.
In the present embodiment, power supply obtains unidirectional current after bridge rectifier rectification, one branch road directly transmits the signal to controller, another branch road flow to after sending commutation diode to first decoupling circuit process after send to again three terminal regulator LM7815, three terminal regulator LM7815 output 15V voltage again through second decoupling circuit process after for subsequent conditioning circuit.Decoupling circuit filters high-frequency signal, changes the transient response of circuit, the stability of intensifier circuit.When occurring short circuit or overload in circuit, resettable fuse disconnects automatically, protects circuit.
Embodiment 2:
A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits as shown in Figure 1, the present embodiment discloses a specific embodiment on the basis of above-described embodiment, and i.e. described diode is IN4007.Described the first electric capacity, the capacitance of the second electric capacity are respectively 0.1 μ f, 10 μ f.Resettable fuse can use JK60-050 or JK60-135.Bridge rectifier can use KBPC-25-10.
As it has been described above, the present invention can preferably be realized.
Claims (3)
- null1. electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits，Including port a，It is characterized in that: described port a is connected on the input of bridge rectifier，The outfan of described bridge rectifier is connected on the positive pole of diode，The negative pole of described diode is connected with first pin of three terminal regulator LM7815，It is connected to the first decoupling circuit and the second decoupling circuit on first pin of described three terminal regulator LM7815 and the 3rd pin，On described port a, connection has resettable fuse，The outfan of described bridge rectifier is additionally attached to the port b for being connected with the controller of electrode slice，The first described decoupling circuit and the second decoupling circuit all include the first electric capacity and the second electric capacity，The first described electric capacity and the second electric capacity are in parallel and a common end grounding，Described diode is commutation diode.
- A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits the most according to claim 1, it is characterised in that: described diode is IN4007.
- A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits the most according to claim 1, it is characterised in that: the first described electric capacity and the capacitance of the second electric capacity are respectively 0.1 μ f and 10 μ f.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304067.4A CN104027888B (en) | 2014-06-30 | 2014-06-30 | A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304067.4A CN104027888B (en) | 2014-06-30 | 2014-06-30 | A kind of electro-therapeutic apparatus of intermediate frequency battery lead plate power supply circuits |
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| CN104027888A CN104027888A (en) | 2014-09-10 |
| CN104027888B true CN104027888B (en) | 2016-08-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198838Y (en) * | 1994-08-12 | 1995-05-31 | 杨占军 | Electrothermic rug without induction electricity |
| CN2493229Y (en) * | 2001-07-11 | 2002-05-29 | 何超焕 | High/low frequency electronic masseur |
| CN101274121A (en) * | 2008-05-19 | 2008-10-01 | 胡立武 | Polar pulse magnetic and far infrared radiation composite energy therapeutic equipment with two-way switchable outputs |
| CN201490884U (en) * | 2009-04-29 | 2010-05-26 | 新华自动化科技发展(上海)有限公司 | Novel voltage converting circuit |
| US8688240B1 (en) * | 2012-10-30 | 2014-04-01 | Mitosis Inc. | Device for neuro-physiologic stimulation |
-
2014
- 2014-06-30 CN CN201410304067.4A patent/CN104027888B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198838Y (en) * | 1994-08-12 | 1995-05-31 | 杨占军 | Electrothermic rug without induction electricity |
| CN2493229Y (en) * | 2001-07-11 | 2002-05-29 | 何超焕 | High/low frequency electronic masseur |
| CN101274121A (en) * | 2008-05-19 | 2008-10-01 | 胡立武 | Polar pulse magnetic and far infrared radiation composite energy therapeutic equipment with two-way switchable outputs |
| CN201490884U (en) * | 2009-04-29 | 2010-05-26 | 新华自动化科技发展(上海)有限公司 | Novel voltage converting circuit |
| US8688240B1 (en) * | 2012-10-30 | 2014-04-01 | Mitosis Inc. | Device for neuro-physiologic stimulation |
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| CN104027888A (en) | 2014-09-10 |
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Address after: 610000 Sichuan city of Chengdu province Chenghua District two East 3rd Ring Rd section of Longtan Industrial Park Patentee after: Sichuan Trinidad times Yikang medical Polytron Technologies Inc Address before: 610000 Sichuan city of Chengdu province Chenghua District two East 3rd Ring Rd section of Longtan Industrial Park Patentee before: Chengdu a thousand li Electronics Equipment Co., Ltd |
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