CN104330617B - A kind of high-precision pulse power detection module - Google Patents
A kind of high-precision pulse power detection module Download PDFInfo
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- CN104330617B CN104330617B CN201410591624.5A CN201410591624A CN104330617B CN 104330617 B CN104330617 B CN 104330617B CN 201410591624 A CN201410591624 A CN 201410591624A CN 104330617 B CN104330617 B CN 104330617B
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Abstract
The present invention relates to a kind of high-precision pulse power detection module, radio circuit including exporting sampled signal for receiving radio frequency input sample signal, radio frequency, the output end of radio circuit with for receiving sampled voltage V1, the input of sampled voltage V2 detection circuit is connected, and detects that the output end of circuit is connected with failure indicating circuit.The present invention can export sample detecting to excess temperature contact, voltage V1 samplings, voltage V2 samplings, radio frequency input sample, radio frequency simultaneously, the input-output power change of level assembly before can monitoring in real time, and then accurately judge whether input power and power output are faulty, can monitoring voltage in real time stability, and then accurately judge whether to be due to that voltage reduction causes under-voltage condition, cause inactivity to export, can fast and effectively find failure cause, be easy to maintenance.
Description
Technical field
The present invention relates to radar detection technique field, especially a kind of high-precision pulse power detection module.
Background technology
With the rapid development of electronic technology, while radar function is improved, also increasing the complexity of Radar Technology, making
Obtain and detection device in machine is become more dependent in maintenance（BITE）.With the development of detection module so that account for maintenance time main part
The fault location time of volume is greatly shortened.Fault detection technique is mainly how research finds trouble location early, and fast
Fixing a breakdown for speed, with on-line checking function, can fast and accurately position failure.Existing detection module volume mistake
Greatly, preponderance, it is impossible to effectively antagonize the interference of externally fed voltage pulsation, easily causes high false alarm rate.With Radar Technology
Complication, compact conformation and precise treatment, fault detect increasingly limited by time and space and technical difficulty.
The content of the invention
Can police radar prime transmission power change simultaneously and electricity on preceding level assembly it is an object of the invention to provide one kind
Whether pressure is stablized, the fast and accurate high-precision pulse power detection module of fault location.
To achieve the above object, present invention employs following technical scheme：A kind of high-precision pulse power detection module, bag
The radio circuit that sampled signal is exported for receiving radio frequency input sample signal, radio frequency is included, the output end of radio circuit is with being used for
Receive sampled voltage V1, the input of sampled voltage V2 detection circuit to be connected, detect the output end and indicating fault electricity of circuit
Road is connected.
The radio circuit is by the first attenuator, the second attenuator, the first detecting circuit, the second detecting circuit, the first ratio
Compared with circuit, the second comparison circuit, the first monostable flipflop, the second monostable flipflop composition, the input of the first attenuator
Radio frequency input sample signal is connect, the output end of the first attenuator passes sequentially through the first detecting circuit, the first comparison circuit, the first list
Steady state trigger is with detecting that the input of circuit is connected；The input termination radio frequency output sampled signal of second attenuator, second declines
The output end for subtracting device passes sequentially through the second detecting circuit, the second comparison circuit, the second monostable flipflop with detecting the defeated of circuit
Enter end to be connected.
The detection circuit is by the first bleeder circuit, the second bleeder circuit, reset circuit, excess temperature contact circuit, the 3rd ratio
Compared with circuit, the 4th comparison circuit and logic circuit composition, the input termination sampled voltage V1 of the first bleeder circuit, the first partial pressure electricity
The output end on road is connected by the 3rd comparison circuit with the input of logic circuit；The input termination sampling electricity of second bleeder circuit
V2 is pressed, the output end of the second bleeder circuit is connected by the 4th comparison circuit with the input of logic circuit；The indicating fault
Circuit is made up of total failare indicating circuit and total failare feedback circuit, and the output end of logic circuit indicates electricity with total failare respectively
Road, total failare feedback circuit are connected.
First attenuator is π types attenuator and is made up of resistance R1, R2, R3 that resistance R1 one end passes through electric capacity C1
Radio frequency input sample signal is connect, and is grounded by resistance R2, the resistance R1 other end connects the first detecting circuit by electric capacity C19,
And be grounded by resistance R3；First detecting circuit uses chip AD8361, and its 4 pin ground connection, its 5 pin connects electric capacity by electric capacity C2
C19, its 3 pin connects+5V direct currents by electric capacity C5；First comparison circuit uses amplifier LMH6655, its 3 pin and chip
AD8361 1 pin is connected, its 4 pin ground connection, and 5,6,7 pin are hanging；First monostable flipflop uses chip 74HC123,
Its 2 pin connects amplifier LMH6655 1 pin and is grounded by resistance R8, and its 3 pin connects amplifier LMH6655 8 pin, and 4,5,6,7 pin hang
Sky, its 8 pin ground connection, its 13 pin is with detecting that the input of circuit is connected.
Second attenuator is π types attenuator and is made up of resistance R9, R10, R11 that resistance R9 one end passes through electric capacity
C10 connects radio frequency output sampled signal and is grounded by resistance R10, and the resistance R9 other end connects the second detection electricity by electric capacity C20
Road and it is grounded by resistance R11；Second detecting circuit uses chip AD8361, and its 4 pin ground connection, its 5 pin connects electricity by electric capacity C11
Hold C20, its 3 pin connects+5V direct currents by electric capacity C14；Second comparison circuit uses amplifier LMH6655, its 3 pin and chip
AD8361 1 pin is connected, its 4 pin ground connection, and 5,6,7 pin are hanging；Second monostable flipflop uses chip 74HC123,
Its 2 pin connects amplifier LMH6655 1 pin and is grounded by resistance R16, and its 3 pin connects amplifier LMH6655 8 pin, 4,5,6,7 pin
Vacantly, its 8 pin is grounded, and its 13 pin is with detecting that the input of circuit is connected.
The sampled voltage V1 is connected through amplifier LM7171 with the first bleeder circuit, and first bleeder circuit is by resistance
R17, R16, R19 and electric capacity C9, C21 composition, the 3rd comparison circuit is using two comparator MAX9034, two comparators
It is connected after MAX9034 output end is in parallel with the input of logic circuit；The sampled voltage V2 is through amplifier LM7171 and second
Bleeder circuit is connected, and second bleeder circuit is made up of resistance R35, R37 and electric capacity C23, and the 4th comparison circuit is used
Comparator MAX9034, comparator MAX9034 output end is connected with the input of logic circuit.
The logic circuit includes chip 74HC (T) 14, and its 1 pin takes over warm contact circuit, the sun of its 2 pin and diode V1
Extremely it is connected, diode V1 negative electrode is connected with chip 74HC (T) 14 3 pin, chip 74HC (T) 14 4 pin and chip 74HC (T)
00 1 pin is connected, and chip 74HC (T) 00 2 pin, 6 pin are connected, and 3 pin, 4 pin are connected, chip 74HC (T) 00 3 pin and chip
74HC (T) 244 15 pin are connected, and chip 74HC (T) 244 5 pin pass through resistance R26 output control signals；Chip 74HC (T) 00
5 pin be connected with chip 74HC (T) 08 3 pin, chip 74HC (T) 08 1 pin connects reset circuit, chip 74HC (T) 08 2 pin
It is connected with chip 74HC (T) 14 8 pin, chip 74HC (T) 14 9 pin connect reset circuit；Chip 74HC (T) 00 3 pin difference
Negative electrode, chip 74HC (T) 244 11 pin with diode V8 are connected, diode V8 anode and chip 74HC (T) 08 11 pin
Be connected, chip 74HC (T) 08 13 pin are connected with chip AHC1G86 Y pin, chip 74HC (T) 244 9 pin respectively with its 13
Pin, resistance R31 one end are connected, and chip 74HC (T) 244 7 pin connect total failare indicating circuit by resistance R33, and resistance R31's is another
One end connects total failare feedback circuit by optocoupler S3.
As shown from the above technical solution, the present invention can be simultaneously to excess temperature contact, voltage V1 samplings, voltage V2 samplings, radio frequency
Input sample, radio frequency output sample detecting, the input-output power change of level assembly before can monitoring in real time, and then accurate judgement
Whether input power and power output faulty, can monitoring voltage in real time stability, and then it is accurate judge whether be due to
Voltage reduction causes under-voltage condition, causes inactivity to export, can fast and effectively find failure cause, is easy to maintenance.In addition, this
Invention uses high-precision AD 581J to be that reference circuit and precision resistance provide reference voltage, can effectively antagonize external input voltage
Interference, reduce the probability of false alarm, whole circuit design completed using highly integrated chip, with small volume, high integration, height
The advantages of degree of accuracy, pinpoint accuracy, high reliability, low false alarm rate, it can be widely applied to radar emission monitoring.
Brief description of the drawings
Fig. 1 is circuit block diagram of the invention.
Fig. 2 be Fig. 1 in radio circuit circuit theory diagrams.
Fig. 3 is the circuit theory diagrams for detecting circuit in Fig. 1.
Embodiment
A kind of high-precision pulse power detection module, including for receiving radio frequency input sample signal, radio frequency output sampling
The radio circuit 1 of signal, the output end of radio circuit 1 and the detection circuit 2 for receiving sampled voltage V1, sampled voltage V2
Input is connected, and the output end of detection circuit 2 is connected with failure indicating circuit, as shown in Figure 1.
As shown in figure 1, the radio circuit 1 is examined by the first attenuator 3, the second attenuator 7, the first detecting circuit 4, second
Wave circuit 8, the first comparison circuit 5, the second comparison circuit 9, the first monostable flipflop 6, the second monostable flipflop 10 are constituted,
The input termination radio frequency input sample signal of first attenuator 3, the output end of the first attenuator 3 passes sequentially through the first detecting circuit
4th, the first comparison circuit 5, the first monostable flipflop 6 are with detecting that the input of circuit 2 is connected；The input of second attenuator 7
Connect radio frequency output sampled signal, the output end of the second attenuator 7 passes sequentially through the second detecting circuit 8, the second comparison circuit 9, the
Two monostable flipflops 10 are with detecting that the input of circuit 2 is connected.
As shown in figure 1, the detection circuit 2 is by the first bleeder circuit 11, the second bleeder circuit 12, reset circuit 15, mistake
Warm contact circuit 16, the 3rd comparison circuit 13, the 4th comparison circuit 14 and logic circuit 17 are constituted, the first bleeder circuit 11 it is defeated
Enter to terminate sampled voltage V1, the output end of the first bleeder circuit 11 passes through the input of the 3rd comparison circuit 13 and logic circuit 17
It is connected；The input termination sampled voltage V2 of second bleeder circuit 12, the output end of the second bleeder circuit 12 compares electric by the 4th
Road 14 is connected with the input of logic circuit 17；The failure indicating circuit is by total failare indicating circuit and total failare feedback circuit
Composition, the output end of logic circuit 17 is connected with total failare indicating circuit, total failare feedback circuit respectively.
As shown in Fig. 2 first attenuator 3 is π types attenuator and is made up of resistance R1, R2, R3, resistance R1 one end
Radio frequency input sample signal is connect by electric capacity C1, and is grounded by resistance R2, the resistance R1 other end connects first by electric capacity C19
Detecting circuit 4, and be grounded by resistance R3；First detecting circuit 4 uses chip AD8361, and its 4 pin ground connection, its 5 pin passes through electricity
Hold C2 and meet electric capacity C19, its 3 pin connects+5V direct currents by electric capacity C5；First comparison circuit 5 uses amplifier LMH6655, and it 3
Pin is connected with chip AD8361 1 pin, its 4 pin ground connection, and 5,6,7 pin are hanging；First monostable flipflop 6 uses chip
74HC123, its 2 pin connects amplifier LMH6655 1 pin and is grounded by resistance R8, and its 3 pin connects amplifier LMH6655 8 pin, 4,
5th, 6,7 pin are hanging, its 8 pin ground connection, and its 13 pin is with detecting that the input of circuit 2 is connected.
As shown in Fig. 2 second attenuator 7 is π types attenuator and is made up of resistance R9, R10, R11, the one of resistance R9
End connects radio frequency output sampled signal by electric capacity C10 and is grounded by resistance R10, and the resistance R9 other end is connect by electric capacity C20
Second detecting circuit 8 and it is grounded by resistance R11；Second detecting circuit 8 uses chip AD8361, and its 4 pin ground connection, its 5 pin leads to
Cross electric capacity C11 and meet electric capacity C20, its 3 pin connects+5V direct currents by electric capacity C14；Second comparison circuit 9 uses amplifier
LMH6655, its 3 pin is connected with chip AD8361 1 pin, its 4 pin ground connection, and 5,6,7 pin are hanging；Second monostable trigger
Device 10 uses chip 74HC123, and its 2 pin connects amplifier LMH6655 1 pin and is grounded by resistance R16, and its 3 pin connects amplifier
LMH6655 8 pin, 4,5,6,7 pin are hanging, its 8 pin ground connection, and its 13 pin is with detecting that the input of circuit 2 is connected.
As shown in figure 3, the sampled voltage V1 is connected through amplifier LM7171 with the first bleeder circuit 11, first partial pressure
Circuit 11 is made up of resistance R17, R16, R19 and electric capacity C9, C21, and the 3rd comparison circuit 13 is using two comparators
MAX9034, is connected after two comparator MAX9034 output end is in parallel with the input of logic circuit 17；The sampled voltage
V2 is connected through amplifier LM7171 with the second bleeder circuit 12, and second bleeder circuit 12 is by resistance R35, R37 and electric capacity C23 groups
Comparator MAX9034 is used into, the 4th comparison circuit 14, and comparator MAX9034 output end is defeated with logic circuit 17
Enter end to be connected.
As shown in figure 3, the logic circuit 17 includes chip 74HC (T) 14, its 1 pin takes over warm contact circuit 16, its 2 pin
It is connected with diode V1 anode, diode V1 negative electrode is connected with chip 74HC (T) 14 3 pin, the 4 of chip 74HC (T) 14
Pin is connected with chip 74HC (T) 00 1 pin, and chip 74HC (T) 00 2 pin, 6 pin are connected, and 3 pin, 4 pin are connected, chip 74HC (T)
00 3 pin are connected with chip 74HC (T) 244 15 pin, and chip 74HC (T) 244 5 pin pass through resistance R26 output control signals；
Chip 74HC (T) 00 5 pin are connected with chip 74HC (T) 08 3 pin, and chip 74HC (T) 08 1 pin connects reset circuit 15, core
Piece 74HC (T) 08 2 pin are connected with chip 74HC (T) 14 8 pin, and chip 74HC (T) 14 9 pin connect reset circuit 15；Chip
Negative electrode, chip 74HC (T) 244 11 pin of 74HC (T) 00 3 pin respectively with diode V8 are connected, diode V8 anode with
Chip 74HC (T) 08 11 pin are connected, and chip 74HC (T) 08 13 pin are connected with chip AHC1G86 Y pin, chip 74HC (T)
244 9 pin are connected with its 13 pin, resistance R31 one end respectively, and chip 74HC (T) 244 7 pin connect total failare by resistance R33 and referred to
Show circuit, the resistance R31 other end connects total failare feedback circuit by optocoupler S3.
Below in conjunction with Fig. 1,2,3, the present invention is further illustrated.
Radio frequency input sample is adjusted in the detectable range of linearity of the first detecting circuit 4 by the first attenuator 3, according to
Input signal threshold value adjusts the datum of amplifier LMH6655 in the first comparison circuit 5, and amplifier LMH6655 is output as pulse
Level, pulse stretching is carried out by the first monostable flipflop 6；Radio frequency output sampling is adjusted to second by the second attenuator 7
In the detectable range of linearity of detecting circuit 8, amplifier LMH6655 in the second comparison circuit 9 is adjusted according to input signal threshold value
Datum, amplifier LMH6655 is output as impulse level, passes through the second monostable flipflop 10 and carries out pulse stretching；Sampling
Voltage V1 and sampled voltage V2 inputs adjust third and fourth comparison circuit 13,14 by first and second bleeder circuit 11,12 respectively
Input voltage, due to sampled voltage input threshold narrow range, so comparator MAX9034 datum chooses high-precision steady
Depressor is provided, and precision resistance is used in first and second bleeder circuit 11,12, defeated to guarantee high-precision monitoring voltage sampling
Enter；Final radio frequency input sample, radio frequency output sampling, voltage sample input, excess temperature contact and reset pass through logic circuit 17
Control, is realized to the faulty detection of institute.In a word, radio frequency input sample is by the first attenuator 3, by adjusting resistance R1, R2
Make input signal in the linear detection range of the first detecting circuit 4 with R3 size, resistance is adjusted according to input power threshold value
R5, R6 resistance are to adjust the datum of the first comparison circuit 5, and the output of the first comparison circuit 5 passes through the first monostable trigger
Device 6 enters line broadening to impulse level, changes the width of output pulse width by adjusting resistance R7 and electric capacity C9 size.Radio frequency is exported
The operation principle of sampling is identical with radio frequency input sample operation principle.
To guarantee the accurate display to various faults, this detection module employ Larger Dynamic input, high linearity,
The radio frequency detector device chip AD8361 and high-precision Voltage stabilizing module AD581J of high-temperature stability, final testing result are every
Technical indicator, which is met, to be required.
Sampled voltage V1 and V2 is depressured by adjusting resistance R11, R12, R18, R19, R41, R42 to output voltage, then is led to
The voltage output stablized after amplifier LM7171 amplifications is crossed, amplifier LM7171 reference voltage is provided by high-precision AD 581J,
Compare output through comparator MAX9034 after amplifier LM7171 outputs, comparator LM7171 reference voltage is by AD581J and precision
Resistance is provided；Excess temperature contact and reset signal are that chip 74HC (T) 00 is exported by rest-set flip-flop, when not resetted, RS
Trigger is output as laststate, i.e., have memory function to total failare in the case of no reset signal.
Total failare instruction, total failare feedback and the excess temperature node of detection module, reset, sampled voltage V2, radio frequency input are defeated
Go out to sample relevant；Control signal port is relevant with excess temperature node, reset, sampled voltage V2.Detection module is started working, and keeps adopting
Sample voltage V1 is+33V, and sampled voltage V2 is+36V, and D1 chip 74HC (T) 14 10 pin are output as low level, radio frequency input,
Export sample port normal, now chip AHC1G86 4 pin are output as high level, now chip 74HC (T) 14 11 pin output
For low level, the zero load of excess temperature contact port, D2 chip 74HC (T) 00 3 pin are output as low level, then now total failare is indicated
For low level, total failare feedback is high level, and control signal port is low level.Keep radio frequency input, output sample port just
Often, chip AHC1G86 4 pin are output as high level, and it is+33V to keep sampled voltage V1, adjusts sampled voltage V2 over voltage alarms,
D1 chip 74HC (T) 14 10 pin are output as high level, and now chip 74HC (T) 14 11 pin are output as high level, or
Excess temperature contact is grounded, D2 chip 74HC (T) 00 3 pin are output as high level, then now total failare is designated as high level, always
Failure feedback is alarmed for low level, and control signal port is high level.
Detection module is started working, and it is+33V to keep sampled voltage V1, and V2 is+36V, and radio frequency input, output sampling are without letter
Number, excess temperature contact is set low into level, D2 chip 74HC (T) 00 3 pin are output as high level, then now total failare indicates should be
High level, reports failure.
Excess temperature contact port is unloaded, and reseting port adds after+5V voltages, and total failare indicates that low electricity will be changed into from high level
Flat, then reseting port is normal.
When sampled voltage V1 and sampled voltage V2 have all the way alarm or two-way with alarm when, power supply instruction will be changed into low
Level, alarm.
In summary, the present invention can simultaneously to excess temperature contact, voltage V1 samplings, voltage V2 samplings, radio frequency input sample, penetrate
Frequency output sample detecting, the input-output power change of level assembly before can monitoring in real time, and then it is accurate judge input power with
Whether power output faulty, can monitoring voltage in real time stability, and then accurate judge whether to be due to that voltage reduction is made
Into under-voltage condition, cause inactivity to export, can fast and effectively find failure cause, be easy to maintenance.
Claims (5)
1. a kind of high-precision pulse power detection module, it is characterised in that：Including for receiving radio frequency input sample signal, radio frequency
Export the radio circuit of sampled signal（1）, radio circuit（1）Output end with for receiving sampled voltage V1, sampled voltage V2
Detection circuit（2）Input be connected, detect circuit（2）Output end be connected with failure indicating circuit；The radio circuit
（1）By the first attenuator（3）, the second attenuator（7）, the first detecting circuit（4）, the second detecting circuit（8）, the first comparison circuit
（5）, the second comparison circuit（9）, the first monostable flipflop（6）, the second monostable flipflop（10）Composition, the first attenuator
（3）Input termination radio frequency input sample signal, the first attenuator（3）Output end pass sequentially through the first detecting circuit（4）,
One comparison circuit（5）, the first monostable flipflop（6）With detection circuit（2）Input be connected；Second attenuator（7）It is defeated
Enter to terminate radio frequency output sampled signal, the second attenuator（7）Output end pass sequentially through the second detecting circuit（8）, second compare
Circuit（9）, the second monostable flipflop（10）With detection circuit（2）Input be connected；First attenuator（3）For π types
Attenuator and it is made up of resistance R1, R2, R3, resistance R1 one end connects radio frequency input sample signal by electric capacity C1, and passes through electricity
R2 ground connection is hindered, the resistance R1 other end connects the first detecting circuit by electric capacity C19（4）, and be grounded by resistance R3；First detection
Circuit（4）Using chip AD8361, its 4 pin ground connection, its 5 pin meets electric capacity C19 by electric capacity C2, and its 3 pin meets+5V by electric capacity C5
Direct current；First comparison circuit（5）Using amplifier LMH6655, its 3 pin is connected with chip AD8361 1 pin, and its 4 pin connects
Ground, 5,6,7 pin are hanging；First monostable flipflop（6）Using chip 74HC123, its 2 pin connects the 1 of amplifier LMH6655
Pin and be grounded by resistance R8, its 3 pin connects amplifier LMH6655 8 pin, 4,5,6,7 pin are hanging, its 8 pin ground connection, its 13 pin with
Detect circuit（2）Input be connected.
2. a kind of high-precision pulse power detection module according to claim 1, it is characterised in that：The detection circuit
（2）By the first bleeder circuit（11）, the second bleeder circuit（12）, reset circuit（15）, excess temperature contact circuit（16）, the 3rd compare
Circuit（13）, the 4th comparison circuit（14）And logic circuit（17）Composition, the first bleeder circuit（11）Input termination sampling electricity
Press V1, the first bleeder circuit（11）Output end pass through the 3rd comparison circuit（13）With logic circuit（17）Input be connected；
Second bleeder circuit（12）Input termination sampled voltage V2, the second bleeder circuit（12）Output end pass through the 4th comparison circuit
（14）With logic circuit（17）Input be connected；The failure indicating circuit is by total failare indicating circuit and total failare feedback electricity
Road is constituted, logic circuit（17）Output end be connected respectively with total failare indicating circuit, total failare feedback circuit.
3. a kind of high-precision pulse power detection module according to claim 1, it is characterised in that：Second attenuator
（7）Constituted for π types attenuator and by resistance R9, R10, R11, resistance R9 one end connects radio frequency output sampling letter by electric capacity C10
Number and be grounded by resistance R10, the resistance R9 other end connects the second detecting circuit by electric capacity C20（8）And connect by resistance R11
Ground；Second detecting circuit（8）Using chip AD8361, its 4 pin ground connection, its 5 pin meets electric capacity C20 by electric capacity C11, and its 3 pin leads to
Cross electric capacity C14 and connect+5V direct currents；Second comparison circuit（9）Using amplifier LMH6655, its 3 pin and the 1 of chip AD8361
Pin is connected, its 4 pin ground connection, and 5,6,7 pin are hanging；Second monostable flipflop（10）Using chip 74HC123, its 2 pin
Connect amplifier LMH6655 1 pin and be grounded by resistance R16, its 3 pin connects amplifier LMH6655 8 pin, 4,5,6,7 pin are hanging,
Its 8 pin is grounded, its 13 pin and detection circuit（2）Input be connected.
4. a kind of high-precision pulse power detection module according to claim 2, it is characterised in that：The sampled voltage V1
Through amplifier LM7171 and the first bleeder circuit（11）It is connected, first bleeder circuit（11）By resistance R17, R16, R19 and electricity
Hold C9, C21 composition, the 3rd comparison circuit（13）Using two comparator MAX9034, two comparator MAX9034's is defeated
Go out end it is in parallel after with logic circuit（17）Input be connected；The sampled voltage V2 is through amplifier LM7171 and the second bleeder circuit
（12）It is connected, second bleeder circuit（12）It is made up of resistance R35, R37 and electric capacity C23, the 4th comparison circuit（14）
Using comparator MAX9034, comparator MAX9034 output end and logic circuit（17）Input be connected.
5. a kind of high-precision pulse power detection module according to claim 2, it is characterised in that：The logic circuit
（17）Including chip 74HC (T) 14, its 1 pin takes over warm contact circuit（16）, its 2 pin is connected with diode V1 anode, two poles
Pipe V1 negative electrode is connected with chip 74HC (T) 14 3 pin, chip 74HC (T) 14 4 pin and chip 74HC (T) 00 1 pin phase
Even, chip 74HC (T) 00 2 pin, 6 pin are connected, and 3 pin, 4 pin are connected, chip 74HC (T) 00 3 pin and chip 74HC (T) 244
15 pin be connected, chip 74HC (T) 244 5 pin pass through resistance R26 output control signals；Chip 74HC (T) 00 5 pin and core
Piece 74HC (T) 08 3 pin are connected, and chip 74HC (T) 08 1 pin connects reset circuit（15）, chip 74HC (T) 08 2 pin and core
Piece 74HC (T) 14 8 pin are connected, and chip 74HC (T) 14 9 pin connect reset circuit（15）；Chip 74HC (T) 00 3 pin difference
Negative electrode, chip 74HC (T) 244 11 pin with diode V8 are connected, diode V8 anode and chip 74HC (T) 08 11 pin
Be connected, chip 74HC (T) 08 13 pin are connected with chip AHC1G86 Y pin, chip 74HC (T) 244 9 pin respectively with its 13
Pin, resistance R31 one end are connected, and chip 74HC (T) 244 7 pin connect total failare indicating circuit by resistance R33, and resistance R31's is another
One end connects total failare feedback circuit by optocoupler S3.
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| CN111880000B (en) * | 2020-08-12 | 2023-06-23 | 常州瑞思杰尔电子科技有限公司 | Radio frequency power supply pulse power detection circuit |
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