CN110031660A - A kind of multi-functional maintaining detector - Google Patents
A kind of multi-functional maintaining detector Download PDFInfo
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- CN110031660A CN110031660A CN201910412571.9A CN201910412571A CN110031660A CN 110031660 A CN110031660 A CN 110031660A CN 201910412571 A CN201910412571 A CN 201910412571A CN 110031660 A CN110031660 A CN 110031660A
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- 238000001514 detection method Methods 0.000 claims abstract description 31
- 239000004065 semiconductor Substances 0.000 claims abstract description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 9
- 229910052744 lithium Inorganic materials 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of multi-functional maintaining detectors, including the second control module, the first control module, metal-oxide-semiconductor, Transformer Rectifier module, voltage detection module, current detection module, display module and touch key-press module；The output end of the touch key-press module is connect with the input terminal of the second control module, for controlling the second control module；The output end of second control module is connect with the input terminal of the first control module, for controlling the opening and closing of the first control module；The output end of first control module and the input terminal of metal-oxide-semiconductor connect；The output end of metal-oxide-semiconductor is connect with the input terminal of Transformer Rectifier module, and the output end of Transformer Rectifier module is connect with the input terminal of display module, voltage detection module and current detection module respectively.Output voltage current adjustment, the voltage output time is adjustable, it can be achieved that the advantages of a variety of circuit arrangement maintenance conditions.
Description
Technical field
The invention belongs to detector fields, and in particular to a kind of multi-functional maintaining detector.
Background technique
Existing most of maintaining detector output voltages are single, and only use for 220V electric main equipment, Bu Nengti
For multi gear electric current and voltage, mortgage electricity cannot could be supplied after needing to convert by other equipment directly to mortgage circuit power supply
Gas equipment uses, and output voltage can not especially cannot be used for test LED light bar and lamp bead, need to take according to automatic load adjusting
Band particular battery or spare UPS backup power source are powered for it, this makes detector very not readily portable.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of multi-functional maintaining detector, output voltage current adjustment,
The voltage output time is adjustable, it can be achieved that the advantages of a variety of circuit arrangement maintenance conditions.
For this purpose, the invention discloses a kind of multi-functional maintaining detector, including the second control module, the first control module,
Metal-oxide-semiconductor, Transformer Rectifier module, voltage detection module, current detection module, display module and touch key-press module；The touch
The output end of key module is connect with the input terminal of the second control module, for controlling the second control module；Second control module
Output end connect with the input terminal of the first control module, for controlling the opening and closing of the first control module；First control
The output end of module and the input terminal of metal-oxide-semiconductor connect；The output end of metal-oxide-semiconductor is connect with the input terminal of Transformer Rectifier module, transformation
The output end of rectification module is connect with the input terminal of display module, voltage detection module and current detection module respectively.
The output end of the voltage detection module and current detection module is connect with the input terminal of the second control chip respectively,
It is used separately as the output frequency of Voltage Feedback adjustment the second control chip, and accounting for as the second control chip of current feedback adjustment
Empty ratio.
The output end of the first control chip also respectively with the input terminal of current detection module and voltage detection module
Input terminal connection.
The metal-oxide-semiconductor is high-power NMOS tube.
It further include lithium battery, the lithium battery is connected with charge-discharge protection circuit.
Second control module is designed using STC family chip, and first control module exports core using pwm signal
Piece design, the touch key-press module are designed using TTP223-BA6.
The beneficial effects of the present invention are:
1. the constant current constant voltage output for limiting range is realized by the exportable different electric currents of the control of the second control module and voltage,
And it can further expand.
2. utilizing inductance loop seclusion conversion transformer, metal-oxide-semiconductor is controlled by pwm signal, realizes that the constant current of automatic lifting pressure is permanent
Pressure output.
3. the output time of constant current constant voltage is controllable.
4. realizing a variety of constant pressure and flow output controls through control module in conjunction with PWM chip.
5. having portable rechargeable function.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In the accompanying drawings, similar element or portion
Divide and is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is control principle block diagram of the invention.
Fig. 2 is main control circuit schematic diagram of the invention.
Fig. 3 is touch key-press circuit diagram of the invention.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
It is as shown in Figure 1, Figure 2 and Figure 3: a kind of multi-functional maintaining detector of the present embodiment, including the second control module,
One control module, metal-oxide-semiconductor, Transformer Rectifier module, voltage detection module, current detection module, display module and touch key-press mould
Block；The output end of the touch key-press module is connect with the input terminal of the second control module, for controlling the second control module；The
The output end of two control modules is connect with the input terminal of the first control module, for controlling unlatching and the pass of the first control module
It closes；The output end of first control module and the input terminal of metal-oxide-semiconductor connect；The output end of metal-oxide-semiconductor and the input of Transformer Rectifier module
End connection, the output end of the Transformer Rectifier module input terminal with display module, voltage detection module and current detection module respectively
Connection.It further include lithium battery, the lithium battery is connected with charge-discharge protection circuit.
The output end of the voltage detection module and current detection module is connect with the input terminal of the second control chip respectively,
It is used separately as the output frequency of Voltage Feedback adjustment the second control chip, and accounting for as the second control chip of current feedback adjustment
Empty ratio.
Input of the output end of the first control chip also with the input terminal of current detection module and voltage detection module
End is separately connected.
The metal-oxide-semiconductor is high-power NMOS tube.
Specifically, in the present embodiment, second control module is designed using STC8, first control module is used
BIT3260 design, the touch key-press module are designed using TTP223-BA6.
As shown in Figure 1, in the present embodiment, 18650 lithium battery of built-in 4 section, the electricity of base in this present embodiment in detector
Road design, fully charged voltage are 16.8V, and release blanking voltage is 12V, wherein charge and discharge protecting of the A5 module as lithium battery
Circuit.Q13 controls Q13 by K1 as circuit power supply control, reaches the power supply function for controlling entire mainboard.
Second control module uses STC8, and the opening and closing of the first control module are controlled by control Q14, wherein
R11 is minimum current limit value detection resistance, can control the minimum current value of output by changing this resistance parameter, passes through difference
The conducting of Q9 and Q10 is controlled, R12 and R13 is in parallel with R11, increase output electric current, output can be changed if changing R12 and R13
Maximum current value.R8 and R9 forms bleeder circuit, so that circuit output voltage is 5V.Second control module control respectively Q3, Q4,
The combination of Q5, Q6, Q7, Q8 are connected, and R21/R22/R23/R24/R25/R26 is in parallel with R9, so that circuit output 5V/12V/
The DC voltage of 24V/36V/48V/72V/140V/230V, and it is possible to pass through the conducting for changing Q3/Q4/Q5/Q6/Q7/Q8
Export more voltage values.It is in parallel with R9 after the series connection of R43 and R27 adjustable resistance, the conducting of Q2 is controlled by the second control module,
It can set voltage output to export manually, output voltage range 5V-230V.
In Fig. 1, ZF2 is self-recovery fuse, and when output short-circuit or overcurrent, ZF2 electric current is excessive and disconnects, and is used as output
Protection.
BIT3260 is used in first control module, output is pwm signal, controls the switch of Q11 high-power MOS tube
Built-in lithium battery voltage is converted to 1.5V-230V DC voltage, the second control control mould by L1 conversion transformer by frequency
5th pin of block is used as voltage detecting, and when detected value is lower than 0.5V, output frequency rises, upper frequency limit 220KHz, when
Output frequency declines when detected value is higher than 0.5V.4th pin is used as current detecting, when detected value is then dropped not less than 0.2V
Low PWM duty cycle then increases PWM duty cycle lower than 0.2V, and second pin, which is used as, to be made to can control foot.
It is loaded when connecting, the current detection value of the first control module reaches and voltage detecting value is not up to, PWM frequency liter
Height, duty ratio can decline, at this time constant current output, and output voltage is in setting range value；After connecting load, the first control module
Current detection value not up to and voltage detecting value reaches, PWM frequency reduces, and duty ratio can rise, at this time constant voltage output, output
Voltage value is setting value.
As shown in Fig. 2, K1 is detector motherboard power supply switch, IC3/IC4/IC5/IC6/IC7/IC8 model is
Touch signal is converted to low and high level signal as 6 road independent touch keys by TTP223-BA6 singly-bound touch control chip,
The second control module being sent in Fig. 1, controls the output and function switch of tester, and 1,2,3 feet of J2 connecting terminal connect electricity
Table is pressed, J2 is connect by 10P conducting wire with the J1 in Fig. 1.
In the present embodiment, the first control chip is IC1, and the second control chip is IC2.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (6)
1. a kind of multi-functional maintaining detector, which is characterized in that it include the second control module, the first control module, metal-oxide-semiconductor,
Transformer Rectifier module, voltage detection module, current detection module, display module and touch key-press module；The touch key-press mould
The output end of block is connect with the input terminal of the second control module, for controlling the second control module；The output of second control module
End is connect with the input terminal of the first control module, for controlling the opening and closing of the first control module；First control module
The connection of the input terminal of output end and metal-oxide-semiconductor；The output end of metal-oxide-semiconductor is connect with the input terminal of Transformer Rectifier module, Transformer Rectifier mould
The output end of block is connect with the input terminal of display module, voltage detection module and current detection module respectively.
2. a kind of multi-functional maintaining detector according to claim 1, which is characterized in that the voltage detection module and electricity
The output end for flowing detection module is connect with the input terminal of the second control chip respectively, is used separately as the second control of Voltage Feedback adjustment
The output frequency of chip, and the duty ratio as current feedback adjustment the second control chip.
3. a kind of multi-functional maintaining detector according to claim 2, which is characterized in that described first controls the defeated of chip
Outlet is also connect with the input terminal of the input terminal of current detection module and voltage detection module respectively.
4. a kind of multi-functional maintaining detector according to claim 3, which is characterized in that the metal-oxide-semiconductor is high-power
NMOS tube.
5. a kind of multi-functional maintaining detector according to claim 1, which is characterized in that it further include lithium battery, the lithium
Battery is connected with charge-discharge protection circuit.
6. a kind of multi-functional maintaining detector according to claim 5, which is characterized in that second control module uses
The design of STC family chip, first control module are designed using pwm signal pio chip, and the touch key-press module uses
TTP223-BA6 design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412571.9A CN110031660A (en) | 2019-05-17 | 2019-05-17 | A kind of multi-functional maintaining detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412571.9A CN110031660A (en) | 2019-05-17 | 2019-05-17 | A kind of multi-functional maintaining detector |
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| Publication Number | Publication Date |
|---|---|
| CN110031660A true CN110031660A (en) | 2019-07-19 |
Family
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| CN201910412571.9A Pending CN110031660A (en) | 2019-05-17 | 2019-05-17 | A kind of multi-functional maintaining detector |
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