CN104027887B - It is applicable to the power-supply circuit of electro-therapeutic apparatus of intermediate frequency - Google Patents
It is applicable to the power-supply circuit of electro-therapeutic apparatus of intermediate frequency Download PDFInfo
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- CN104027887B CN104027887B CN201410304020.8A CN201410304020A CN104027887B CN 104027887 B CN104027887 B CN 104027887B CN 201410304020 A CN201410304020 A CN 201410304020A CN 104027887 B CN104027887 B CN 104027887B
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Abstract
nullThe invention discloses a kind of power-supply circuit being applicable to electro-therapeutic apparatus of intermediate frequency，Including the first power circuit、Second source circuit and the 3rd power circuit，The first described power circuit includes the first bridge rectifier and the first three terminal regulator being electrically connected with，Described second source circuit includes the second bridge rectifier and the second three terminal regulator being electrically connected with，The 3rd described power circuit includes the 3rd bridge rectifier being electrically connected with successively、Diode and the 3rd three terminal regulator，The first described three terminal regulator、Second three terminal regulator and the voltage input end of the 3rd three terminal regulator and voltage output end are respectively connected with decoupling circuit，The first described bridge rectifier、It is respectively connected with resettable fuse on the input of the second bridge rectifier and the 3rd bridge rectifier，Described decoupling circuit 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.It can provide multiple voltage, so that each electronic component performance of electro-therapeutic apparatus of intermediate frequency reaches optimum.
Description
Technical field
The present invention relates to field of power supplies, specifically, relate to a kind of power-supply circuit for being applicable to electro-therapeutic apparatus of intermediate frequency.
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.Containing a lot of electronic components in electro-therapeutic apparatus of intermediate frequency, its interior electronic component is more, and the operation of each electronic component is both needed to provide power supply, such as operational amplifier, controller etc..Owing to the supply voltage of each electronic component is different, at power supply supply respect, if directly providing a power supply, owing to the demand voltage of each electronic component is different, the operation making electronic component is restricted so that electro-therapeutic apparatus of intermediate frequency can not well play its performance, affects using effect.
Summary of the invention
The technical problem to be solved is to provide one can provide multiple voltage, so that each electronic component performance of electro-therapeutic apparatus of intermediate frequency reaches optimum power-supply circuit.
The present invention solves the problems referred to above and be the technical scheme is that
nullIt is applicable to the power-supply circuit of electro-therapeutic apparatus of intermediate frequency，Including the first power circuit、Second source circuit and the 3rd power circuit，The first described power circuit includes the first bridge rectifier and the first three terminal regulator being electrically connected with，Described second source circuit includes the second bridge rectifier and the second three terminal regulator being electrically connected with，The 3rd described power circuit includes the 3rd bridge rectifier being electrically connected with successively、Diode and the 3rd three terminal regulator，The first described three terminal regulator、Second three terminal regulator and the voltage input end of the 3rd three terminal regulator and voltage output end are respectively connected with decoupling circuit，The first described bridge rectifier、It is respectively connected with resettable fuse on the input of the second bridge rectifier and the 3rd bridge rectifier，Described decoupling circuit 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.In the present invention, it is provided that three power supplys supply branch roads, the i.e. first power circuit, second source circuit and the 3rd power circuit, provide respectively different voltage for different electronic components so that the performance of each electronic component reaches optimum.Supply voltage inputs to subsequent conditioning circuit after bridge rectifier rectification, three terminal regulator carries out voltage stabilizing to voltage, to be supplied to follow-up electronic component, its circuit structure is simple, decoupling circuit uses two electric capacity in parallel, AC noise is filtered by the decoupling circuit of the voltage input end of the first three terminal regulator, the second three terminal regulator and the 3rd three terminal regulator, and the electric current making output is more steady；The decoupling circuit of the voltage output end of the first three terminal regulator, the second three terminal regulator and the 3rd three terminal regulator filters high-frequency signal, changes the transient response of circuit；Decoupling circuit makes the stability of circuit strengthen.Whole power circuit and follow-up electronic component are protected by the resettable fuse of the input of the first bridge rectifier, the second bridge rectifier and the 3rd bridge rectifier; when the first power circuit, second source circuit and the 3rd power circuit occur short circuit or overload; automatically disconnect, play a protective role.3rd power circuit is on the basis of the first power circuit, second source circuit, diode is connected between the 3rd bridge rectifier and the 3rd three terminal regulator, electrode slice and the electronic component of drive circuit thereof that this power branch is electro-therapeutic apparatus of intermediate frequency provide power supply, diode has unipolarity, make the signal of telecommunication can only one-way flow, ensure that the signal of telecommunication on electrode slice can only one-way transmission, it is to avoid static electricity on human body's destruction to electro-therapeutic apparatus of intermediate frequency；And the 3rd bridge rectifier of this power branch outfan connect interface b, its directly for electro-therapeutic apparatus of intermediate frequency panel provide pulsating volage, the control signal i.e. making panel is Tong Bu with electrode slice.
As preferably, the first described three terminal regulator is LM7912, and the second described three terminal regulator is LM7805, and the 3rd described three terminal regulator is LM7815.First three terminal regulator, the second three terminal regulator and the 3rd three terminal regulator are respectively adopted LM7912, LM7805 and LM7815, produce different magnitude of voltage output respectively, i.e. produce-12V, the voltage of 5V, 15V between outfan and ground, to be supplied to the different electronic components of electro-therapeutic apparatus of intermediate frequency, meet the power demands of each electronic component.
As preferably, the first described electric capacity is the electrochemical capacitor of 220 μ f, and the second described electric capacity is the electric capacity of 0.1 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 uses three power branch to produce different magnitudes of voltage respectively, different voltage is utilized respectively the different electronic components of electro-therapeutic apparatus of intermediate frequency to be powered, the performance making each electronic component of electro-therapeutic apparatus of intermediate frequency reaches optimum, i.e. makes the best performance of electro-therapeutic apparatus of intermediate frequency.
2, the circuit structure of the present invention is simple, it is easy to accomplish.
3, the 3rd power circuit of the present invention both can be that panel provides pulsating volage, and the control signal making panel is Tong Bu with electrode slice；Its diode has unipolarity, also makes the signal of telecommunication on electrode slice can only one-way transmission, it is to avoid static electricity on human body's destruction to electro-therapeutic apparatus of intermediate frequency.
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:
nullA kind of power-supply circuit being applicable to electro-therapeutic apparatus of intermediate frequency as shown in Figure 1，Including the first power circuit、Second source circuit and the 3rd power circuit，The first described power circuit includes the first bridge rectifier and the first three terminal regulator being electrically connected with，Described second source circuit includes the second bridge rectifier and the second three terminal regulator being electrically connected with，The 3rd described power circuit includes the 3rd bridge rectifier being electrically connected with successively、Diode and the 3rd three terminal regulator，The first described three terminal regulator、Second three terminal regulator and the voltage input end of the 3rd three terminal regulator and voltage output end are respectively connected with decoupling circuit，The first described bridge rectifier、It is respectively connected with resettable fuse on the input of the second bridge rectifier and the 3rd bridge rectifier，Described decoupling circuit 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.In the present embodiment, it is utilized respectively different three the power branch different voltage of generation and is supplied to each electronic component of electro-therapeutic apparatus of intermediate frequency so that each electronic component obtains the voltage needed for it runs.The alternating current of the first power circuit is input in power circuit through interface a, unidirectional current is obtained after the first bridge rectifier processes, the decoupling circuit of the first three terminal regulator voltage input end flows to the first three terminal regulator after decoupling unidirectional current, first three terminal regulator carries out process and obtains a magnitude of voltage again through decoupling circuit process unidirectional current, strengthen the stability of output voltage, it is ensured that the reliability service of follow-up each electronic component.The operation principle of second source circuit is identical with the operation logic of the first power circuit.3rd power circuit only connects a diode at the outfan of the 3rd bridge rectifier, and diode has signal one-way transmission, it is to avoid current reflux, the reliability of intensifier circuit.
Embodiment 2:
A kind of power-supply circuit being applicable to electro-therapeutic apparatus of intermediate frequency as shown in Figure 1, the present embodiment discloses one group of detailed description of the invention on the basis of above-described embodiment, the first i.e. described three terminal regulator is LM7912, the second described three terminal regulator is LM7805, and the 3rd described three terminal regulator is LM7815.
The first described electric capacity is the electrochemical capacitor of 220 μ f, and the second described electric capacity is the electric capacity of 0.1 μ f.
Electronic component within electro-therapeutic apparatus of intermediate frequency uses operational amplifier, controller, power amplifier, it needs-12V ,+15V, the voltage of+5V, use LM7912, LM7805 and LM7815 can produce-12V ,+15V ,+5V respectively, meet the operation demand of each electronic component.Resettable fuse can use JK60-050 or JK60-135 according to the different model of voltage different choice.Bridge rectifier can use KBPC-25-10.
As it has been described above, the present invention can preferably be realized.
Claims (3)
- null1. it is applicable to the power-supply circuit of electro-therapeutic apparatus of intermediate frequency，It is characterized in that: include the first power circuit、Second source circuit and the 3rd power circuit，The first described power circuit includes the first bridge rectifier and the first three terminal regulator being electrically connected with，Described second source circuit includes the second bridge rectifier and the second three terminal regulator being electrically connected with，The 3rd described power circuit includes the 3rd bridge rectifier being electrically connected with successively、Diode and the 3rd three terminal regulator，The first described three terminal regulator、Second three terminal regulator and the voltage input end of the 3rd three terminal regulator and voltage output end are respectively connected with decoupling circuit，The first described bridge rectifier、It is respectively connected with resettable fuse on the input of the second bridge rectifier and the 3rd bridge rectifier，Described decoupling circuit 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；The outfan of described 3rd bridge rectifier connects the interface b of the panel offer pulsating volage of promising electro-therapeutic apparatus of intermediate frequency.
- The power-supply circuit being applicable to electro-therapeutic apparatus of intermediate frequency the most according to claim 1, it is characterised in that: the first described three terminal regulator is LM7912, and the second described three terminal regulator is LM7805, and the 3rd described three terminal regulator is LM7815.
- The power-supply circuit being applicable to electro-therapeutic apparatus of intermediate frequency the most according to claim 1, it is characterised in that: the first described electric capacity is the electrochemical capacitor of 220 μ f, and the second described electric capacity is the electric capacity of 0.1 μ f.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304020.8A CN104027887B (en) | 2014-06-30 | 2014-06-30 | It is applicable to the power-supply circuit of electro-therapeutic apparatus of intermediate frequency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304020.8A CN104027887B (en) | 2014-06-30 | 2014-06-30 | It is applicable to the power-supply circuit of electro-therapeutic apparatus of intermediate frequency |
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| Publication Number | Publication Date |
|---|---|
| CN104027887A CN104027887A (en) | 2014-09-10 |
| CN104027887B true CN104027887B (en) | 2016-08-24 |
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| CN201410304020.8A Active CN104027887B (en) | 2014-06-30 | 2014-06-30 | It is applicable to the power-supply circuit of electro-therapeutic apparatus of intermediate frequency |
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| CN106345054A (en) * | 2016-08-23 | 2017-01-25 | 哈尔滨工业大学 | Programmable functional electrical stimulator with real-time feedback function |
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 CN201410304020.8A patent/CN104027887B/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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| CN104027887A (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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