CN205643727U - Geiger - effective low -power consumption high -voltage circuit of miller count - Google Patents
Geiger - effective low -power consumption high -voltage circuit of miller count Download PDFInfo
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- CN205643727U CN205643727U CN201620468548.3U CN201620468548U CN205643727U CN 205643727 U CN205643727 U CN 205643727U CN 201620468548 U CN201620468548 U CN 201620468548U CN 205643727 U CN205643727 U CN 205643727U
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Abstract
The utility model discloses a geiger the effective low -power consumption high -voltage circuit of miller count, including low pressure power supply, power manager, transformer, voltage multiplying circuit, the geiger that connects gradually miller count pipe and waveform conversion circuit have met current sampling circuit between voltage multiplying circuit's the output and the input of power manager, voltage multiplying circuit includes xiao jite diode D2, xiaojite diode D3, xiaojite diode D4 and xiaojite diode D5. The utility model relates to a novelty, simple structure, is voltage multiplying circuit conversion efficiency high and the voltage multiplying circuit line is small, for the geiger that is used for radiation measurement miller count pipe provides high voltage power supply, and low power dissipation that voltage multiplying circuit self consumed has reduced complete machine consumption and unloaded consumption, and the practicality is strong.
Description
Technical field
This utility model belongs to pressure build-up technique field, is specifically related to a kind of Geiger-low merit of Miller counter tube
Consumption high-tension circuit.
Background technology
Radiation detector is substantially all and high voltage power supply need to be used to power, and Geiger-Miller counter tube is exactly therein
A kind of, it is desirable to provide the high pressure of 100-1000V.For battery powered portable radiant instrument,
The working time of radiac instruments is an important technical specification, reduces power consumption, extends radiac instruments work
Time has become an important technical research；For the radiation detector of high pressure, high-tension circuit need to be provided
The power consumption self consumed accounts for exhausted vast scale, for Geiger-Miller counter tube detector, current domestic generally
Using high-pressure modular to provide high pressure, the power consumption of high-pressure modular generally more than 30mW, account for the 2/3 of Overall Power Consumption
Above；Geiger-Miller counter tube detector uses extensively, portable radiant instrument mostly can use Geiger-
Miller counter tube detector, designs a high-tension circuit being exclusively used in Geiger-Miller counter tube detector, right
In reducing Overall Power Consumption important in inhibiting, generally there is high-tension electricity in current domestic designed high-tension circuit
Road conversion efficiency is low, and no-load power consumption is high, and the shortcomings such as high-pressure modular size is big are with not enough.
Utility model content
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to carry
For a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is novel in design rationally, voltage multiplication
Circuit conversion efficiency is high and voltage multiplying circuit line volume is little, for for radiometric Geiger-rice
Strangling counter tube and provide high voltage power supply, it is low in energy consumption that voltage multiplying circuit self is consumed, and reduces complete machine
Power consumption and no-load power consumption, it is simple to promote the use of.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of Geiger-rice
Strangle counter tube low-power dissipation high pressure circuit, it is characterised in that: the low-voltage power supply that includes being sequentially connected with,
Power supervisor, transformator, voltage multiplying circuit, Geiger-Miller counter tube and waveform changing circuit,
It is connected to current sampling circuit between outfan and the input of power supervisor of voltage multiplying circuit；Electricity
Voltage multiplying circuit include Xiao Jite diode D2, Xiao Jite diode D3, Xiao Jite diode D4 and
2nd pin of Xiao Jite diode D5, Xiao Jite diode D2 and the 1st of Xiao Jite diode D3 the
Pin connects, the 2nd pin of Xiao Jite diode D3 and the 1st pin phase of Xiao Jite diode D4
Connecing, the 2nd pin of Xiao Jite diode D4 connects with the 1st pin of Xiao Jite diode D5, Xiao
3rd pin of base spy diode D5 divides three tunnels, a road through electric capacity C10, electric capacity C9, electric capacity C8 and
Electric capacity C7 ground connection, another road connects with current sampling circuit, and the 3rd tunnel is through resistance R11 and resistance R12
One end connect；3rd pin of Xiao Jite diode D4 and the connection end of electric capacity C10 and electric capacity C9
Connecting, the 3rd pin of Xiao Jite diode D3 connects with the connection end of electric capacity C9 and electric capacity C8,
3rd pin of Xiao Jite diode D2 connects with the connection end of electric capacity C8 and electric capacity C7, resistance R12
The signal output part that the other end is voltage multiplying circuit.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
Xiao Jite diode D2, Xiao Jite diode D3, Xiao Jite diode D4 and Xiao Jite diode D5
It is the Xiao Jite diode of cascaded structure.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
Transformator includes that two-way is divided in secondary one end of transformator T1, transformator T1, a road and Xiao Jite bis-pole
1st pin of pipe D2 connects, and another road is through electric capacity C12, electric capacity C13 and electric capacity C14 and Xiao Jite
The connection end of the 2nd pin of diode D4 and the 1st pin of Xiao Jite diode D5 connects；Electric capacity
C12 and electric capacity C13 connects end and the 2nd pin of Xiao Jite diode D2 and Xiao Jite diode
The connection end of the 1st pin of D3 connects, the connection end of electric capacity C13 and electric capacity C14 and Xiao Jite bis-pole
The connection end of the 2nd pin of pipe D3 and the 1st pin of Xiao Jite diode D4 connects, transformator T1
Secondary other end ground connection.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
Power supervisor includes low-power dissipation power supply amplifier.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
Low-power dissipation power supply amplifier includes the 4th pin and the transformator T1 of chip LT1304, chip LT1304
One end, former limit connect, the 3rd pin of chip LT1304 and the connection end of the 7th pin and transformator
The former limit other end of T1 connects, and the 8th pin of chip LT1304 connects with current sampling circuit.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
Current sampling circuit is high pressure resistant resistance R13.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
Low-voltage power supply is low-voltage dc power supply VCC1, and low-voltage dc power supply VCC1 is through switch element JP1
Connection end and the 3rd of chip LT1304 with electric capacity C18 ground connection, switch element JP1 and electric capacity C18
The connection end of pin and the 7th pin connects.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
The magnitude of voltage of low-voltage dc power supply VCC1 is 3V～5V.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
Geiger-Miller counter tube includes counter tube GM1, the anode of counter tube GM1 through resistance R1 in parallel and
Electric capacity C1 connects with the signal output part of voltage multiplying circuit, and the negative electrode of counter tube GM1 is through parallel connection
Resistance R7 and electric capacity C6 ground connection.
Above-mentioned a kind of Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: described
Waveform changing circuit includes that the IN-pin of comparator LMV7235, comparator LMV7235 is through resistance R5
Connecting with the negative electrode of electric capacity C5 counter tube GM1, the IN+ pin of comparator LMV7235 divides two-way, and one
Road connects through resistance R6 and 3.3V power supply, and another road is fixing with one of swept resistance RP2 holds and sliding
The connection end of the sliding end of galvanic electricity resistance RP2 connects；Another fixing end ground connection of swept resistance RP2,
The Vout pin of comparator LMV7235 divides three tunnels, and a road connects through resistance R2 and 3.3V power supply,
Another road connects through the IN+ pin of resistance R4 and comparator LMV7235, and the 3rd tunnel is waveform conversion electricity
The signal output part on road.
This utility model compared with prior art has the advantage that
1, the low-voltage power supply of input is boosted after power supervisor and transformator process by this utility model
An order of magnitude, then by voltage multiplying circuit, by voltage multiplication to required high pressure, High voltage output value
Feeding back to power supervisor by current sampling circuit, voltage multiplying circuit uses the cascaded structure of cascade
Xiao Jite diode realizes, and circuit is simple, boost conversion efficiency height and voltage multiplying circuit line volume
Little, low in energy consumption, it is simple to promote the use of.
2, this utility model by high pressure resistant resistance R13 as feedback resistance, by the way of resistance adjustment
Feedback signal, output ripple is little, reliable and stable, and using effect is good.
3, this utility model is novel in design rationally, and all of components and parts use paster packing forms, enter one
Step reduces circuit power consumption, practical, it is simple to promote the use of.
In sum, this utility model is novel in design rationally, simple in construction, and voltage multiplying circuit is changed
Efficiency is high and voltage multiplying circuit line volume is little, for for radiometric Geiger-Miller counter tube
Thering is provided high voltage power supply, it is low in energy consumption that voltage multiplying circuit self is consumed, and reduces Overall Power Consumption and sky
Carry power consumption, practical, it is simple to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is done and further retouches in detail
State.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Description of reference numerals:
1 low-voltage power supply；2 power supervisors；3 transformators；
4 voltage multiplying circuits；5 Geiger-Miller counter tube；6 current sampling circuits；
7 waveform changing circuits.
Detailed description of the invention
As depicted in figs. 1 and 2, this utility model includes low-voltage power supply 1, the power supply being sequentially connected with
Manager 2, transformator 3, voltage multiplying circuit 4, Geiger-Miller counter tube 5 and waveform conversion electricity
Road 7, is connected to electric current between outfan and the input of power supervisor 2 of voltage multiplying circuit 4 and adopts
Sample circuit 6；Voltage multiplying circuit 4 includes Xiao Jite diode D2, Xiao Jite diode D3, Xiao Ji
Special diode D4 and Xiao Jite diode D5, the 2nd pin of Xiao Jite diode D2 and Xiao Jite bis-
1st pin of pole pipe D3 connects, the 2nd pin of Xiao Jite diode D3 and Xiao Jite diode D4
The 1st pin connect, the 2nd pin of Xiao Jite diode D4 and the 1st of Xiao Jite diode D5 the
Pin connects, and the 3rd pin of Xiao Jite diode D5 divides three tunnels, and a road is through electric capacity C10, electric capacity
C9, electric capacity C8 and electric capacity C7 ground connection, another road connects with current sampling circuit 6, and the 3rd tunnel is through electricity
One end of resistance R11 and resistance R12 connects；3rd pin of Xiao Jite diode D4 and electric capacity C10
Connect with the connection end of electric capacity C9, the 3rd pin of Xiao Jite diode D3 and electric capacity C9 and electric capacity
The connection end of C8 connects, the 3rd pin of Xiao Jite diode D2 and electric capacity C8 and the company of electric capacity C7
Connecing end to connect, the other end of resistance R12 is the signal output part of voltage multiplying circuit 4.
In the present embodiment, described Xiao Jite diode D2, Xiao Jite diode D3, Xiao Jite bis-pole
Pipe D4 and Xiao Jite diode D5 is the Xiao Jite diode of cascaded structure.
In actually used, voltage multiplying circuit 4 can according to reality output high pressure need increase and decrease tandem junction
The quantity of the Xiao Jite diode of structure and the use of the Xiao Jite diode peripheral cell of cascaded structure,
Connect simple.
As in figure 2 it is shown, in the present embodiment, described transformator 3 includes transformator T1, transformator T1
Secondary one end divide two-way, a road connects with the 1st pin of Xiao Jite diode D2, another road warp
2nd pin of electric capacity C12, electric capacity C13 and electric capacity C14 and Xiao Jite diode D4 and Xiao Jite bis-
The connection end of the 1st pin of pole pipe D5 connects；The connection end of electric capacity C12 and electric capacity C13 and Xiao Ji
The connection end of the 2nd pin of special diode D2 and the 1st pin of Xiao Jite diode D3 connects, electricity
That holds C13 and electric capacity C14 connects end and the 2nd pin of Xiao Jite diode D3 and Xiao Jite bis-pole
The connection end of the 1st pin of pipe D4 connects, the secondary other end ground connection of transformator T1.
In the present embodiment, described power supervisor 2 includes low-power dissipation power supply amplifier.
As in figure 2 it is shown, in the present embodiment, described low-power dissipation power supply amplifier includes chip LT1304,
4th pin of chip LT1304 connects with one end, former limit of transformator T1, the 3rd of chip LT1304
The end that connects of pin and the 7th pin connects with the former limit other end of transformator T1, chip LT1304's
8th pin connects with current sampling circuit 6.
As in figure 2 it is shown, in the present embodiment, described current sampling circuit 6 is high pressure resistant resistance R13.
In actually used, current sampling circuit 6 uses the principle of resistance sampling to realize the anti-of high-voltage signal
Feedback, ripple is little, it is achieved efficiency is high.
As in figure 2 it is shown, in the present embodiment, described low-voltage power supply 1 is low-voltage dc power supply VCC1,
Low-voltage dc power supply VCC1 is through switch element JP1 and electric capacity C18 ground connection, switch element JP1 and electricity
The end that connects holding C18 connects with the 3rd pin of chip LT1304 and the connection end of the 7th pin.
In the present embodiment, the magnitude of voltage of described low-voltage dc power supply VCC1 is 3V～5V.
As in figure 2 it is shown, in the present embodiment, described Geiger-Miller counter tube 5 includes counter tube GM1,
The anode of counter tube GM1 is defeated with the signal of voltage multiplying circuit 4 through resistance R1 in parallel and electric capacity C1
Going out end to connect, the negative electrode of counter tube GM1 is through resistance R7 in parallel and electric capacity C6 ground connection.
As in figure 2 it is shown, in the present embodiment, described waveform changing circuit 7 includes comparator LMV7235,
The IN-pin of comparator LMV7235 connects through the negative electrode of resistance R5 and electric capacity C5 counter tube GM1,
The IN+ pin of comparator LMV7235 divides two-way, and a road connects, separately through resistance R6 and 3.3V power supply
One tunnel is the connection end phase of the sliding end of fixing end and swept resistance RP2 with one of swept resistance RP2
Connect；Another fixing end ground connection of swept resistance RP2, the Vout pin of comparator LMV7235 divides
Three tunnels, a road connects through resistance R2 and 3.3V power supply, and another road is through resistance R4 and comparator LMV7235
IN+ pin connect, the 3rd tunnel is the signal output part of waveform changing circuit 7.
It should be noted that counter tube GM1 is output as the pulse signal of vibration, pulse signal cannot send
Enter in peripheral control unit, use waveform changing circuit 7 to be turned by the pulse signal that counter tube GM1 exports
It is changed to the receivable square-wave signal of peripheral control unit, it is simple to later data processes.
When this utility model uses, use low-voltage power supply 1 provides for Geiger-Miller counter tube 5
Low-voltage dc power supply, switch element JP1 is as switch, when needs are powered, connecting valve element JP1
Two terminals, low-voltage power supply 1 provides low pressure for power supervisor 2 and transformator 3 simultaneously
DC source, power supervisor 2 compares regulation low-voltage dc power supply, and transformator 3 is by this low-voltage direct
Power booster an order of magnitude, the voltage after boosting is multiplied to required height through voltage multiplying circuit 4 again
Pressure, voltage one tunnel of voltage multiplying circuit 4 output provides high-tension electricity for Geiger-Miller counter tube 5,
Magnitude of voltage now is fed back to power supervisor 2 through current sampling circuit 6 by another road, it is to avoid under-voltage
Or overvoltage and cause Geiger-Miller counter tube 5 cannot normally work use, Geiger-Miller counter tube
The pulse signal of 5 outputs exports square-wave signal after waveform changing circuit 7 is changed, and meets external control
Device signal receives, and using effect is good.
The above, be only preferred embodiment of the present utility model, not makees this utility model any
Limit, every according to this utility model technical spirit, above example is made any simple modification,
Change and equivalent structure change, all still fall within the protection domain of technical solutions of the utility model.
Claims (10)
1. Geiger-Miller counter tube low-power dissipation high pressure circuit, it is characterised in that: include successively
The low-voltage power supply (1) of connection, power supervisor (2), transformator (3), voltage multiplication
Circuit (4), Geiger-Miller counter tube (5) and waveform changing circuit (7), voltage multiplying circuit
(4) it is connected to current sampling circuit (6) between outfan and the input of power supervisor (2)；
Voltage multiplying circuit (4) includes Xiao Jite diode D2, Xiao Jite diode D3, Xiao Jite bis-pole
Pipe D4 and Xiao Jite diode D5, the 2nd pin of Xiao Jite diode D2 and Xiao Jite diode
1st pin of D3 connects, the of the 2nd pin of Xiao Jite diode D3 and Xiao Jite diode D4
1 pin connects, the 2nd pin of Xiao Jite diode D4 and the 1st pin of Xiao Jite diode D5
Connecting, the 3rd pin of Xiao Jite diode D5 divides three tunnels, a road through electric capacity C10, electric capacity C9,
Electric capacity C8 and electric capacity C7 ground connection, another road connects with current sampling circuit (6), and the 3rd tunnel is through electricity
One end of resistance R11 and resistance R12 connects；3rd pin of Xiao Jite diode D4 and electric capacity C10
Connect with the connection end of electric capacity C9, the 3rd pin of Xiao Jite diode D3 and electric capacity C9 and electric capacity
The connection end of C8 connects, the 3rd pin of Xiao Jite diode D2 and electric capacity C8 and the company of electric capacity C7
Connecing end to connect, the other end of resistance R12 is the signal output part of voltage multiplying circuit (4).
2. according to a kind of Geiger described in claim 1-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: described Xiao Jite diode D2, Xiao Jite diode D3, Xiao Jite diode D4
With the Xiao Jite diode that Xiao Jite diode D5 is cascaded structure.
3. according to a kind of Geiger described in claim 1-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: described transformator (3) includes that secondary one end of transformator T1, transformator T1 divides two
Road, a road connects with the 1st pin of Xiao Jite diode D2, and another road is through electric capacity C12, electric capacity
2nd pin and the 1st of Xiao Jite diode D5 the of C13 and electric capacity C14 and Xiao Jite diode D4
The connection end of pin connects；Electric capacity C12 and electric capacity C13 connects end and Xiao Jite diode D2's
The connection end of the 1st pin of the 2nd pin and Xiao Jite diode D3 connects, electric capacity C13 and electric capacity
C14 connects the end the 2nd pin with Xiao Jite diode D3 and the 1st pipe of Xiao Jite diode D4
The connection end of foot connects, the secondary other end ground connection of transformator T1.
4. according to a kind of Geiger described in claim 3-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: described power supervisor (2) includes low-power dissipation power supply amplifier.
5. according to a kind of Geiger described in claim 4-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: described low-power dissipation power supply amplifier includes the of chip LT1304, chip LT1304
4 pins connect with one end, former limit of transformator T1, the 3rd pin of chip LT1304 and the 7th pin
Connect end connect with the former limit other end of transformator T1, the 8th pin and the electric current of chip LT1304
Sample circuit (6) connects.
6. according to a kind of Geiger described in claim 5-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: described current sampling circuit (6) is high pressure resistant resistance R13.
7. according to a kind of Geiger described in claim 5-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: described low-voltage power supply (1) is low-voltage dc power supply VCC1, low-voltage DC
Source VCC1 is through switch element JP1 and electric capacity C18 ground connection, switch element JP1 and the company of electric capacity C18
Connect end to connect with the 3rd pin of chip LT1304 and the connection end of the 7th pin.
8. according to a kind of Geiger described in claim 7-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: the magnitude of voltage of described low-voltage dc power supply VCC1 is 3V～5V.
9. according to a kind of Geiger described in claim 1-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: described Geiger-Miller counter tube (5) includes counter tube GM1, counter tube GM1's
Anode connects with the signal output part of voltage multiplying circuit (4) through resistance R1 in parallel and electric capacity C1,
The negative electrode of counter tube GM1 is through resistance R7 in parallel and electric capacity C6 ground connection.
10. according to a kind of Geiger described in claim 9-Miller counter tube low-power dissipation high pressure circuit,
It is characterized in that: described waveform changing circuit (7) includes comparator LMV7235, comparator LMV7235
IN-pin connect through the negative electrode of resistance R5 and electric capacity C5 counter tube GM1, comparator LMV7235
IN+ pin divide two-way, a road connects through resistance R6 and 3.3V power supply, another road and swept resistance
The connection end of the sliding end of the fixing end of of RP2 and swept resistance RP2 connects；Swept resistance RP2
Another fixing end ground connection, the Vout pin of comparator LMV7235 divides three tunnels, and a road is through resistance
R2 with 3.3V power supply connects, and another road connects through the IN+ pin of resistance R4 and comparator LMV7235,
3rd tunnel is the signal output part of waveform changing circuit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620468548.3U CN205643727U (en) | 2016-05-20 | 2016-05-20 | Geiger - effective low -power consumption high -voltage circuit of miller count |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620468548.3U CN205643727U (en) | 2016-05-20 | 2016-05-20 | Geiger - effective low -power consumption high -voltage circuit of miller count |
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| Publication Number | Publication Date |
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| CN205643727U true CN205643727U (en) | 2016-10-12 |
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| CN201620468548.3U Active CN205643727U (en) | 2016-05-20 | 2016-05-20 | Geiger - effective low -power consumption high -voltage circuit of miller count |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907902A (en) * | 2017-11-09 | 2018-04-13 | 成都理工大学 | A kind of plateau curve measuring device and experiment porch |
-
2016
- 2016-05-20 CN CN201620468548.3U patent/CN205643727U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907902A (en) * | 2017-11-09 | 2018-04-13 | 成都理工大学 | A kind of plateau curve measuring device and experiment porch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: Yanta District in Shaanxi province Xi'an City Road 710061, No. 108 Patentee after: Xi'an central Nuclear Instrument Co., Ltd. Address before: Yanta District in Shaanxi province Xi'an City Road 710061, No. 108 Patentee before: Xi'an Nuclear Instrument Factory |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yanta District in Shaanxi province Xi'an City Road 710061, No. 108 Patentee after: Xi'an Zhonghe Nuclear Instrument Co.,Ltd. Address before: Yanta District in Shaanxi province Xi'an City Road 710061, No. 108 Patentee before: XI'AN ZHONGHE NUCLEAR APPARATUS CO.,LTD. |