CN204500946U - A kind of electric knife closed loop calibration of power circuit - Google Patents
A kind of electric knife closed loop calibration of power circuit Download PDFInfo
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- CN204500946U CN204500946U CN201520098931.XU CN201520098931U CN204500946U CN 204500946 U CN204500946 U CN 204500946U CN 201520098931 U CN201520098931 U CN 201520098931U CN 204500946 U CN204500946 U CN 204500946U
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Abstract
This utility model relates to a kind of electric knife closed loop calibration of power circuit, comprise input, outfan, sample circuit, Root Mean square Converter and slide rheostat, described sample circuit is connected with described Root Mean square Converter by described slide rheostat, described sample circuit comprises adapter, electric capacity C3 and electric capacity C4, described slide rheostat is connected with the pin 15 of Root Mean square Converter, the pin 1 of described Root Mean square Converter is connected with pin 6 difference electric capacity C77, the pin 11 of described Root Mean square Converter is connected with electric capacity C77, the pin 10 of described Root Mean square Converter is in parallel with resistance R23, the pin 16 of described Root Mean square Converter is outfan, the pin 5 of described Root Mean square Converter is connected with input by resistance R35.The beneficial effects of the utility model are, this utility model provides a kind of stable output power, performance number accurate and the electric knife closed loop calibration of power circuit that high-frequency leakage current is little.
Description
Technical field
This utility model relates to a kind of electric knife closed loop calibration of power circuit.
Background technology
Organize the human body electrical characteristics of different manifestations also different due to human body, such as: fat, muscle and blood etc.Represent by electrical characteristics, be just resistance, its scope is generally at 100 Ω ~ 2000 Ω.For load change electric knife so greatly.Certainly will output be affected, such as output 600 Ω so likely export several watts during 40W on 2000 Ω, can not meet the needs of operation.If so electric knife will the output power range of 100 Ω ~ 2000 Ω all at 40W time.Tissue signal will be got back in machine.We are named sampling this process.That is constantly human body signal is adopted in the machine of getting back to when electric knife works and calculated by CPU, then result of calculation is being fed back on output.Make, in its scope ensureing to change at 100 Ω ~ 2000 Ω, to export still constant at 40W.This process we be referred to as, electric knife closed loop control system.
Utility model content
In view of the above-mentioned problems in the prior art, main purpose of the present utility model is to address the deficiencies of the prior art, and this utility model provides a kind of stable output power and the electric knife closed loop calibration of power circuit that remains unchanged under different human body impedances of output.
This utility model provides a kind of electric knife closed loop calibration of power circuit, comprise input, outfan, sample circuit, Root Mean square Converter and slide rheostat, described sample circuit is connected with described Root Mean square Converter by described slide rheostat, described sample circuit comprises adapter, electric capacity C3 and electric capacity C4, the pin 1 of described adapter is connected with described electric capacity C3, the pin 3 of described adapter is connected with described electric capacity C4, the pin 1 of described adapter is connected with described slide resistor by resistance R1, the pin 2 of described adapter is hindered with slip power transformation by resistance R31 and is connected, the pin 2 of described adapter is connected with electric capacity C4 with resistance R2 by resistance R32, described slide rheostat is connected with the pin 15 of Root Mean square Converter with electric capacity C126 by electric capacity C125 parallel with one another, the pin 1 of described Root Mean square Converter is connected with electric capacity C77 respectively by resistance R23 with pin 6, the pin 11 of described Root Mean square Converter is connected with electric capacity C77, the pin 10 of described Root Mean square Converter is by electric capacity C71 parallel with one another, electric capacity C72 and electric capacity C73 is in parallel with resistance R23, the pin 16 of described Root Mean square Converter is outfan, the pin 5 of described Root Mean square Converter is connected with input by resistance R35.
Optionally, described electric capacity C3, electric capacity C4, electric capacity C125, electric capacity C126, electric capacity C71, electric capacity C72, electric capacity C73, electric capacity C77 are the electric capacity of 100pf.
Optionally, described resistance R1 and resistance R2 is the resistance of 10k Ω.
Optionally, described resistance R30 and resistance R31 is the resistance of 2k Ω.
This utility model has the following advantages and beneficial effect: this utility model provides a kind of electric knife closed loop calibration of power circuit, when outer load (human body resistance) changes, flow through the high frequency electric in loop also in change, got into by the electric current of the adapter in sample circuit by change, slide rheostat one end is given again through resistance R1 and resistance R31 dividing potential drop, to be sent into by AC signal after Root Mean square Converter carries out root-mean-square computing through electric capacity C125 and electric capacity C126 again, obtaining a direct current signal through the pin 16 of Root Mean square Converter exports; Send into outside CPU again and carry out computing; Obtain a variable quantity, then according to the continuous Modulating Power of this variable quantity, thus reaching the object of output automatic calibration, this circuit is simple, and work efficiency is high simultaneously.
Accompanying drawing explanation
The circuit theory diagrams of a kind of electric knife closed loop calibration of power circuit that Fig. 1 provides for this utility model.
Detailed description of the invention
With specific embodiment, this utility model is further described below with reference to accompanying drawings.
As shown in Figure 1: a kind of electric knife closed loop calibration of power circuit of this utility model embodiment, comprise input, outfan, sample circuit 100, Root Mean square Converter AD637 and slide rheostat R38, described sample circuit 100 is connected with described Root Mean square Converter AD637 by described slide rheostat R38, described sample circuit 100 comprises adapter J27, electric capacity C3 and electric capacity C4, the pin 1 of described adapter J27 is connected with described electric capacity C3, the pin 3 of described adapter J27 is connected with described electric capacity C4, the pin 1 of described adapter J27 is connected with described slide resistor R38 by resistance R1, the pin 2 of described adapter J27 hinders R38 by resistance R31 with slip power transformation and is connected, the pin 2 of described adapter J27 is connected with electric capacity C4 with resistance R2 by resistance R32, described slide rheostat R38 is connected with the pin 15 of Root Mean square Converter AD637 with electric capacity C126 by electric capacity C125 parallel with one another, the pin 1 of described Root Mean square Converter AD637 is connected with electric capacity C77 respectively by resistance R23 with pin 6, the pin 11 of described Root Mean square Converter AD637 is connected with electric capacity C77, the pin 10 of described Root Mean square Converter AD637 is by electric capacity C71 parallel with one another, electric capacity C72 and electric capacity C73 is in parallel with resistance R23, the pin 16 of described Root Mean square Converter AD637 is outfan, the pin 5 of described Root Mean square Converter AD637 is connected with input by resistance R35, when outer load (human body resistance) changes, flow through the high frequency electric in loop also in change, by the adapter J27 in sample circuit, the electric current of change is got into, slide rheostat R38 one end is given again through resistance R1 and resistance R31 dividing potential drop, to be sent into by AC signal after Root Mean square Converter AD637 carries out root-mean-square computing through electric capacity C125 and electric capacity C126 again, obtaining a direct current signal through the pin 16 of Root Mean square Converter AD637 exports, send into outside CPU again and carry out computing, obtain a variable quantity, then according to the continuous Modulating Power of this variable quantity, thus reach the object of output automatic calibration.
As the preferred implementation of above-described embodiment, described electric capacity C3, electric capacity C4, electric capacity C125, electric capacity C126, electric capacity C71, electric capacity C72, electric capacity C73, electric capacity C77 are the electric capacity of 100pf.
As the preferred implementation of above-described embodiment, described resistance R1 and resistance R2 is the resistance of 10k Ω.
As the preferred implementation of above-described embodiment, described resistance R30 and resistance R31 is the resistance of 2k Ω.
Last it is noted that above-described each embodiment is only for illustration of the technical solution of the utility model, be not intended to limit; Although be described in detail this utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or to wherein partly or entirely technical characteristic carry out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of this utility model.
Claims (4)
1. an electric knife closed loop calibration of power circuit, it is characterized in that: comprise input, outfan, sample circuit, Root Mean square Converter and slide rheostat, described sample circuit is connected with described Root Mean square Converter by described slide rheostat, described sample circuit comprises adapter, electric capacity C3 and electric capacity C4, the pin 1 of described adapter is connected with described electric capacity C3, the pin 3 of described adapter is connected with described electric capacity C4, the pin 1 of described adapter is connected with described slide resistor by resistance R1, the pin 2 of described adapter is hindered with slip power transformation by resistance R31 and is connected, the pin 2 of described adapter J27 is connected with electric capacity C4 with resistance R2 by resistance R32, described slide rheostat is connected with the pin 15 of Root Mean square Converter with electric capacity C126 by electric capacity C125 parallel with one another, the pin 1 of described Root Mean square Converter is connected with electric capacity C77 respectively by resistance R23 with pin 6, the pin 11 of described Root Mean square Converter is connected with electric capacity C77, the pin 10 of described Root Mean square Converter is by electric capacity C71 parallel with one another, electric capacity C72 and electric capacity C73 is in parallel with resistance R23, the pin 16 of described Root Mean square Converter is outfan, the pin 5 of described Root Mean square Converter is connected with input by resistance R35.
2. electric knife closed loop calibration of power circuit according to claim 1, it is characterized in that, described electric capacity C3, electric capacity C4, electric capacity C125, electric capacity C126, electric capacity C71, electric capacity C72, electric capacity C73, electric capacity C77 are the electric capacity of 100pf.
3. electric knife closed loop calibration of power circuit according to claim 1, it is characterized in that, described resistance R1 and resistance R2 is the resistance of 10k Ω.
4. electric knife closed loop calibration of power circuit according to claim 1, it is characterized in that, described resistance R30 and resistance R31 is the resistance of 2k Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098931.XU CN204500946U (en) | 2015-02-11 | 2015-02-11 | A kind of electric knife closed loop calibration of power circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098931.XU CN204500946U (en) | 2015-02-11 | 2015-02-11 | A kind of electric knife closed loop calibration of power circuit |
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| CN204500946U true CN204500946U (en) | 2015-07-29 |
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| CN201520098931.XU Active CN204500946U (en) | 2015-02-11 | 2015-02-11 | A kind of electric knife closed loop calibration of power circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833735A (en) * | 2017-10-31 | 2018-03-23 | 赛诺微医疗科技（浙江）有限公司 | Resonance transformer and use its electric knife equipment |
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2015
- 2015-02-11 CN CN201520098931.XU patent/CN204500946U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833735A (en) * | 2017-10-31 | 2018-03-23 | 赛诺微医疗科技（浙江）有限公司 | Resonance transformer and use its electric knife equipment |
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Addressee: BEIJING KANGWEI ELECTRONICS & TECHNOLOGY Co.,Ltd. Person in charge of patentsThe principal of patent Document name: payment instructions |
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