CN206313427U - For the overcurrent protection device of electromyogram electro photoluminescence output - Google Patents
For the overcurrent protection device of electromyogram electro photoluminescence output Download PDFInfo
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- CN206313427U CN206313427U CN201621220886.1U CN201621220886U CN206313427U CN 206313427 U CN206313427 U CN 206313427U CN 201621220886 U CN201621220886 U CN 201621220886U CN 206313427 U CN206313427 U CN 206313427U
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- circuit
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- optical coupled
- coupled switch
- charging
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Abstract
The utility model discloses a kind of overcurrent protection device for electromyogram electro photoluminescence output, including booster circuit, optical coupled switch, output circuit, charging circuit, constant-current source circuit and waveform control circuit；The three-terminal link of booster circuit and optical coupled switch, the 4th end electrical connection output circuit of optical coupled switch, the first end connection power supply of optical coupled switch, one end connection power supply of charging circuit, the other end connect the input of not gate, the output end of not gate connects the second end of optical coupled switch, one end of constant-current source circuit connects the other end, one end of other end connection waveform control circuit of output circuit and charging circuit, the other end ground connection of waveform control circuit respectively.When output current failure produces excessively stream, the voltage of node A can be constantly pulled down to low potential by constant-current source circuit, and node A voltage causes optical coupled switch to disconnect after dragging down, and booster circuit to output circuit is disconnected, the high pressure of booster circuit has been cut off in time, it is ensured that the safety of patient.
Description
Technical field
The utility model is related to the technical field of the electro photoluminescence of electromyogram, more particularly to a kind of to be used to export electro photoluminescence
Carry out real-time monitoring and take the device of overcurrent protection.
Background technology
Electromyogram and the functional status that evoked potentuial measuring system is for determining peripheral neuromuscular system and central nervous system
And suspicious lesions, subclinical focus is detected, disease damage is accurately positioned.To peripheral nerve disease, myelopathy, demyelinating disease, neck
The examination of vertebra disease, diabetes, all kinds of neurotrosises, rehabilitation evaluation, sensation and motor function evaluation etc. determines.It is clinically wide
It is general to be applied to neural Medicine and Surgery, hand surgery, orthopaedics, paediatrics, rehabilitation department, division of endocrinology, anorectum department, otology, ophthalmology, uropoiesis
The section office such as section, sexual function section, forensic identification.
The common electromyogram egersimeter of in the market generally comprises output circuit, control wave generator circuit and rises piezoelectricity
Road.Output circuit, with certain frequency and waveform, is exported by booster circuit under the control of control wave generator circuit to human body
The sufficiently high voltage that there is provided and produce the constant current for flowing through human body, this high pressure is general in 300V-400V or so, the arteries and veins of stimulation
Within 1ms, frequency of stimulation is within 20Hz, it is seen that the electric stimulation pulse time of output is very short for width, within the 1s times,
The overall width of 20ms is at most also only exported, but because voltage is sufficiently high, so the tolerance degree of human body is very low, stimulates defeated in 20Hz
When going out, intolerable tingling sensation can be experienced.If envisioning egersimeter produced flow problem, electric current pulsewidth
Control failure, then the high pressure of 300V will always put on human body, it will cause serious consequence.
Utility model content
The problem and shortage that the utility model exists for prior art, there is provided a kind of new for electromyogram electro photoluminescence
The overcurrent protection device of output.
The utility model is to solve above-mentioned technical problem by following technical proposals：
The utility model provides a kind of overcurrent protection device for electromyogram electro photoluminescence output, and its feature is,
Booster circuit that it includes an output high pressure, an optical coupled switch, one are used to electrically connecting the output circuit of stimulating electrode, one charge electricity
Road, a constant-current source circuit and a waveform control circuit；
The booster circuit is electrically connected with the 3rd end of the optical coupled switch, and the 4th end of the optical coupled switch electrically connects output electricity
The first input end on road, the first end electric connection of power supply of the optical coupled switch, one end electric connection of power supply of the charging circuit, the other end
The input of a not gate is electrically connected, the output end of the not gate electrically connects the second end of the optical coupled switch, the one of the constant-current source circuit
End is electrically connected the second input of the output circuit and the other end of the charging circuit, the other end electrically connect waveform control
One end of circuit, the other end ground connection of the waveform control circuit.
It is preferred that the charging circuit is charging interval controllable charging circuit.
On the basis of common sense in the field is met, above-mentioned each optimum condition can be combined, obtain final product the utility model it is each compared with
Good example.
Positive effect of the present utility model is：
The utility model stimulates output loop to turn on when output current failure produces excessively stream, and the voltage of node A can pass through
Constant-current source circuit is constantly pulled down to low potential, and node A voltage causes optical coupled switch to disconnect after dragging down, booster circuit to output
Circuit is disconnected, and the 300V-400V voltages of booster circuit has been cut off in time, it is ensured that the safety of patient.
Brief description of the drawings
Fig. 1 is the structural representation of the overcurrent protection device of the utility model preferred embodiment.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made all belongs to
In the scope of the utility model protection.
As shown in figure 1, the present embodiment provides a kind of overcurrent protection device for electromyogram electro photoluminescence output, its bag
Including the booster circuit 1 of an output high pressure, an optical coupled switch 2, is used to electrically connect the charging electricity of output circuit 3, of stimulating electrode
Road 4, a constant-current source circuit 5, a waveform control circuit 6 and a not gate 7.
The booster circuit 1 is electrically connected with the 3rd end of the optical coupled switch 2, the 4th end electrical connection output of the optical coupled switch 2
The first input end of circuit 3, the first end electric connection of power supply of the optical coupled switch 2, one end electric connection of power supply of the charging circuit 4,
The other end electrically connects the input of the not gate 7, and the output end of the not gate 7 electrically connects the second end of the optical coupled switch 2, the constant-current source
One end of circuit 5 is electrically connected the second input of the output circuit 3 and the other end of the charging circuit 4, the other end are electrically connected
One end of the waveform control circuit 6 is connect, the other end ground connection of the waveform control circuit 6.
Additionally, the charging circuit 4 is charging interval controllable charging circuit.
Lower mask body introduces the operation principle of the overcurrent protection device：
What booster circuit 1 was exported is the high pressure of 300V-400V, controls whether to turn on output circuit by optical coupled switch 2
3, VLL is the operating voltage of 12V, for providing operating voltage for optical coupled switch 2.
Constant-current source circuit 5 is the continuous current for producing 0-100mA as needed, and pulse-width controlled is also by constant-current source circuit 5
To control.
The stimulating electrode of Output ends connection output, is put on patient by stimulating electrode.
Node A is for monitoring output current excessively stream.When electro photoluminescence is not exported, stimulate loop to be not turned on, save
Point A is slowly charged to the voltage i.e. 12V of VLL by charging circuit 4, the 12V voltages of node A by vanishing after not gate 7, then optocoupler
The lower end of the diode in switch 2 is 0V, and the voltage of the upper end of diode is 12V, then diode current flow, so that optocoupler
Switch 2 is closed, and allows booster circuit 1 to be switched to output loop 3.
When waveform control circuit 6 exports electric-impulse stimulation signal, stimulating electrode sends electro photoluminescence and acts on human body.Work as electricity
During the normal work of road, node A is slowly charged by charging circuit 4, while the voltage of node A can be pulled low by constant-current source circuit 5,
But the charging rate of A points is more than the speed of voltage pull-down during due to circuit normal work, so that the voltage of A points or electricity high
Pressure, by vanishing after not gate 7, then the lower end of the diode in optical coupled switch 2 is 0V to the high voltage of node A, and diode
The voltage of upper end is 12V, then diode current flow, so that optical coupled switch 2 is closed, allows booster circuit 1 to be switched to output loop
3。
When output current failure produces excessively stream, output loop 3 is stimulated to turn on, node A is slowly charged by charging circuit 4,
The voltage of node A can be persistently pulled down to low potential by constant-current source circuit 5 simultaneously, the charging speed of A points during due to fault
, less than the speed of voltage pull-down, so that the voltage of A points is low-voltage, the low-voltage of node A is by being changed into high after not gate 7 for degree
Voltage, then the lower end of the diode in optical coupled switch 2 be high voltage V, and the upper end of diode also for high voltage is 12V, then
Diode is not turned on, so that optical coupled switch 2 disconnects, booster circuit 1 to output circuit 3 is disconnected, and boosting has been cut off in time
The 300V-400V voltages of circuit 1, it is ensured that the safety of patient.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or repair to these implementation methods on the premise of without departing substantially from principle of the present utility model and essence
Change, but these changes and modification each fall within protection domain of the present utility model.
Claims (2)
1. it is a kind of for electromyogram electro photoluminescence output overcurrent protection device, it is characterised in that it includes an output high pressure
Booster circuit, an optical coupled switch, one be used to electrically connect output circuit, a charging circuit, a constant-current source circuit of stimulating electrode
With a waveform control circuit；
The booster circuit is electrically connected with the 3rd end of the optical coupled switch, and the 4th end of the optical coupled switch electrically connects the output circuit
First input end, the first end electric connection of power supply of the optical coupled switch, one end electric connection of power supply of the charging circuit, the other end are electrically connected
The input of a not gate is connect, the output end of the not gate electrically connects the second end of the optical coupled switch, one end point of the constant-current source circuit
The second input of the output circuit is not electrically connected and the other end of the charging circuit, the other end electrically connect the waveform control circuit
One end, the waveform control circuit the other end ground connection.
2. it is as claimed in claim 1 to be used for the overcurrent protection device that electromyogram electro photoluminescence is exported, it is characterised in that this fills
Circuit is charging interval controllable charging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220886.1U CN206313427U (en) | 2016-11-14 | 2016-11-14 | For the overcurrent protection device of electromyogram electro photoluminescence output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220886.1U CN206313427U (en) | 2016-11-14 | 2016-11-14 | For the overcurrent protection device of electromyogram electro photoluminescence output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313427U true CN206313427U (en) | 2017-07-07 |
Family
ID=59245473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621220886.1U Expired - Fee Related CN206313427U (en) | 2016-11-14 | 2016-11-14 | For the overcurrent protection device of electromyogram electro photoluminescence output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206313427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682867A (en) * | 2020-06-19 | 2020-09-18 | 深圳市麦积电子科技有限公司 | Trigger circuit |
-
2016
- 2016-11-14 CN CN201621220886.1U patent/CN206313427U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682867A (en) * | 2020-06-19 | 2020-09-18 | 深圳市麦积电子科技有限公司 | Trigger circuit |
| CN111682867B (en) * | 2020-06-19 | 2024-04-02 | 深圳市麦积电子科技有限公司 | Trigger circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20191114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |