CN208421192U - A kind of power supply electrifying detection circuit and ATM machine - Google Patents
A kind of power supply electrifying detection circuit and ATM machine Download PDFInfo
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- CN208421192U CN208421192U CN201820399728.XU CN201820399728U CN208421192U CN 208421192 U CN208421192 U CN 208421192U CN 201820399728 U CN201820399728 U CN 201820399728U CN 208421192 U CN208421192 U CN 208421192U
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Abstract
The utility model belongs to field of power management, discloses a kind of power supply electrifying detection circuit and ATM machine, and a kind of power supply electrifying detection circuit includes: the first DC conversion modules for generating the first DC power supply according to raw DC power supply；For generating second DC conversion modules of second DC power supply to be powered to chip according to the first DC power supply；For generating the first detection module of first detection signal according to the first DC power supply；For generating the second detection module of the second detection signal according to the second DC power supply and first detection signal；For the delay startup module of raw DC power supply power supply to be connected according to the second detection signal delay startup internal switch pipe；For according to the indicative indicating module of raw DC power supply.The utility model realizes power supply electrifying detection function under the situation for not using microprocessor interface resource, improves the Function Extension potentiality of equipment.
Description
Technical field
The utility model belongs to field of power management more particularly to a kind of power supply electrifying detection circuit and ATM machine.
Background technique
Power supply electrifying detection circuit is as shown in Figure 1, generally include the first DC conversion modules, the second direct current modulus of conversion at present
Raw DC voltage is converted into the first direct current, the second direct current by block, microprocessor and indicating module, the first DC conversion modules
First direct current is converted into the second direct current to be powered to microprocessor, by logical after microprocessor starting by conversion module
Indication signal is exported with input/output interface, indicating module is indicated according to indication signal.
Since the prior art exports indication signal by the universal input/output interface of microprocessor, power on detection circuit is accounted for
With valuable microprocessor interface resource, resulting in functions of the equipments extension is restricted.
Utility model content
The utility model provides a kind of power supply electrifying detection circuit and ATM machine, it is intended to solve existing power supply electrifying
Detection circuit occupies microprocessor interface resource and extends restricted problem so as to cause ground functions of the equipments.
The utility model is realized in this way a kind of power supply electrifying detection circuit, the power supply electrifying detection circuit include:
It is connect with raw DC power supply, the first direct current for generating the first DC power supply according to raw DC power supply is converted
Module；
Connect with first DC conversion modules, for according to first DC power supply generate the second DC power supply with
The second DC conversion modules that chip is powered；
It is connect with first DC conversion modules, for generating first detection signal according to first DC power supply
First detection module；
It is connect with second DC conversion modules and the first detection module, for according to second DC power supply
The second detection module of the second detection signal is generated with the first detection signal；
It is connect with the raw DC power supply and second detection module, for being opened according to the second detection signal is slow
Dynamic internal switch pipe is to be connected the delay startup module that the raw DC power supply is powered；
It is connect with the delay startup module, for according to the indicative indicating module of raw DC power supply.
The utility model embodiment detects the first DC power supply, the second detection module detection second by first detection module
DC power supply, and by delay startup module according to testing result delay startup internal switch pipe raw DC power supply is connected to instruction
The power supply of module, therefore power supply electrifying detection function is realized under the situation for not using microprocessor interface resource, it improves
The Function Extension potentiality of equipment, increase the competitiveness of product in market.
Detailed description of the invention
It is novel in order to illustrate more clearly of the technical application in the utility model embodiment, it below will be in embodiment description
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the one of the utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of function structure chart of prior art power supply electrifying detection circuit；
Fig. 2 is a kind of function structure chart of power supply electrifying detection circuit provided by the embodiment of the utility model；
Fig. 3 is a kind of modular structure of the second detection module of power supply electrifying detection circuit provided by the embodiment of the utility model
Figure；
Fig. 4 is the exemplary circuit structure chart of power supply electrifying detection circuit provided by the embodiment of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Fig. 2 shows the modular structures of power supply electrifying detection circuit provided by the embodiment of the utility model, for the ease of saying
It is bright, part relevant to the utility model embodiment is illustrated only, details are as follows:
Above-mentioned power supply electrifying detection circuit includes:
It is connect with raw DC power supply, the first direct current for generating the first DC power supply according to raw DC power supply is converted
Module 01.
It is connect with the first DC conversion modules 01, for generating the second DC power supply to chip according to the first DC power supply
The second DC conversion modules 02 being powered.
It is connect with the first DC conversion modules 01, for generating the first inspection of first detection signal according to the first DC power supply
Survey module 03.
It is connect with the second DC conversion modules 02 and first detection module 03, for being examined according to the second DC power supply and first
Survey the second detection module 04 that signal generates the second detection signal.
It is connect with raw DC power supply and the second detection module 04, for according to the second detection signal delay startup internal switch
Pipe is to be connected the delay startup module 05 that raw DC power supply is powered.
It is connect with delay startup module 05, for according to the indicative indicating module 06 of raw DC power supply.Indicating module
06 may include one or more LED (Light Emitting Diode, light emitting diode).
When the first DC power supply is greater than first threshold, first detection module 03 generates first detection signal；When second straight
When galvanic electricity source is greater than second threshold, the second detection module 04 generates the second detection signal according to first detection signal, in the second inspection
Surveying signal triggers 05 delay startup internal switch pipe of delay startup module power supply of the raw DC power supply to indicating module 06 is connected,
Since the detection of the first DC power supply and the first DC power supply and the power supply of indicating module 06 are not based on microprocessor, save
The port resource of microprocessor, to improve the potentiality of functions of the equipments extension.
In specific implementation, as shown in figure 3, the second detection module 04 includes: and the second DC conversion modules 02 and the first inspection
It surveys module 03 to connect, the third for generating third detection signal according to the second DC power supply and first detection signal detects signal
Generation module 041；It is connect with the second DC conversion modules 02 and third detection signal generation module 041, for straight according to second
Galvanic electricity source carries out reverse phase and shaping to third detection signal to generate the reverse phase Shaping Module 042 of the second detection signal.
Fig. 4 shows the exemplary circuit structure of power supply electrifying detection circuit provided by the embodiment of the utility model, in order to just
In explanation, part relevant to the utility model embodiment is illustrated only, details are as follows:
It includes the first triode Q1, first resistor R1 and second resistance R2 that third, which detects signal generation module 041,.
The first end of first resistor R1 is the first input end that third detects signal generation module 041, first resistor R1's
Second end is connect with the base stage of the first triode Q1, the common structure of first end of the collector and second resistance R2 of the first triode Q1
At the output end of third detection signal generation module 041, the second end of second resistance R2 is connect with the second DC power supply VBB, the
The emitter of one triode Q1 is connect with power ground.
Reverse phase Shaping Module 042 includes Schmidt's reverser U1.
The input terminal of Schmidt's reverser U1 and the output end of Schmidt's reverser U1 are respectively reverse phase Shaping Module 042
First input end and output end, the power end of Schmidt's reverser U1 are the second input terminal of reverse phase Shaping Module 042, Shi Mi
The ground terminal of special reverser U1 is connect with power ground.
The function of Schmidt's reverser is to keep output voltage and input voltage logic level reversed, i.e., when the electricity of input voltage
It puts down when being high, the level of output voltage is low level, and vice versa.When input signal from high level becomes low level or by low electricity
Flat when becoming high level, the rising edge or failing edge of output signal can become very steep, can improve signal edge characteristics well；
And the noise in signal can effectively be removed by schmitt inverter, improve signal quality.
First detection module 03 includes voltage-stabiliser tube Z1.
The cathode of voltage-stabiliser tube Z1 is the input terminal of first detection module 03, the just extremely first detection module 03 of voltage-stabiliser tube Z1
Output end.
Voltage-stabiliser tube Z1 can be Zener diode.
Delay startup module 05 include the first field-effect tube M1, the second triode Q2, first capacitor C1,3rd resistor R3 and
4th resistance R4；
The first end of the source electrode of first field-effect tube M1, the first end of first capacitor C1 and the 4th resistance R4 collectively forms
The first input end of delay startup module 05, the drain electrode of the first field-effect tube M1 are the output end of delay startup module 05, first effect
Should the grid of pipe M1 and the first end of the second end of first capacitor C1, the second end of the 4th resistance R4 and 3rd resistor R3 connect
It connects, the second end of 3rd resistor R3 is connect with the collector of the second triode Q2, the emitter and power ground of the second triode Q2
Connection.
Above-mentioned first field-effect tube M1 is the switching tube inside delay startup module 05.
It is described further below in conjunction with working principle to shown in Fig. 4:
In the specific implementation process, when equipment starts, raw DC power supply VDD conducting, at this time due to the second triode
Q2 is not turned on, and the grid voltage and source voltage difference of the first field-effect tube M1 is 0V, therefore the first field-effect tube M1 also fails to be connected,
Being exported at this time to the voltage of indicating module 06 is 0V, and the LED light in indicating module 06 does not work.
After the voltage of raw DC power supply VDD is normal, the first DC conversion modules 01 turn raw DC power supply VDD
It is changed to the first DC power supply VAA, at this time the breakdown ON operation of voltage-stabiliser tube Z1, but also due to the voltage of the second DC power supply VBB
It does not power on, the first triode Q1 is not turned at this time, and schmitt inverter U1 does not also work, and the second triode Q2 is also not turned on.
When the voltage of the first DC power supply VAA works normally, the second DC conversion modules 02 turn the first DC power supply VAA
It is changed to the second DC power supply VBB, the first triode Q1 is due to emitter junction conducting at this time, therefore collector junction is also switched on, Schmidt's reverse phase
Device U1 input pin becomes low level input, and low level exports after Schmidt's reverser U1 as high level, i.e. the two or three pole
The base stage of pipe Q2 is high level, and the emitter junction of the second triode Q2 is connected in base stage high level at this time, and then collector junction is then led
It is logical.
After second triode Q2 conducting, due to there is the presence of first capacitor C1, the grid voltage of the first field-effect tube M1 is not
Can mutation, and since the electric resistance partial pressure of 3rd resistor R3 and the 4th resistance R4 act on, the grid voltage of the first field-effect tube M1 by
Gradually decline, i.e., the grid of the first field-effect tube M1 and source electrode pressure difference gradually rise, the conducting until meeting the first field-effect tube M1
Condition, the grid of the first field-effect tube M1 and drain electrode are gradually turned on, and the drain electrode of the first field-effect tube M1 exports raw DC power supply
VDD, the LED in indicating module 06 is lit at this time, i.e. the detection of realization power supply electrifying.
Due to the presence of first capacitor C1, therefore the effect of delay startup and afterflow is realized when first capacitor C1 charge and discharge, keep away
Surge current when having exempted to be switched on and when shutdown.
The utility model embodiment also provides a kind of ATM machine, and ATM machine includes above-mentioned power supply electrifying detection circuit.
The utility model embodiment detects the first DC power supply, the second detection module detection second by first detection module
DC power supply, and by delay startup module according to testing result delay startup internal switch pipe raw DC power supply is connected to instruction
The power supply of module, therefore power supply electrifying detection function is realized under the situation for not using microprocessor interface resource, it improves
The Function Extension potentiality of equipment, increase the competitiveness of product in market.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of power supply electrifying detection circuit, which is characterized in that the power supply electrifying detection circuit includes:
It is connect with raw DC power supply, for generating the first direct current modulus of conversion of the first DC power supply according to raw DC power supply
Block；
It is connect with first DC conversion modules, for generating the second DC power supply to core according to first DC power supply
The second DC conversion modules that piece is powered；
It is connect with first DC conversion modules, for generating the first of first detection signal according to first DC power supply
Detection module；
It is connect with second DC conversion modules and the first detection module, for according to second DC power supply and institute
State the second detection module that first detection signal generates the second detection signal；
It is connect with the raw DC power supply and second detection module, for according in the second detection signal delay startup
Portion's switching tube is to be connected the delay startup module that the raw DC power supply is powered；
It is connect with the delay startup module, for according to the indicative indicating module of raw DC power supply.
2. power supply electrifying detection circuit as described in claim 1, which is characterized in that second detection module includes:
It is connect with second DC conversion modules and the first detection module, for according to second DC power supply and institute
State the third detection signal generation module that first detection signal generates third detection signal；
It is connect with second DC conversion modules and third detection signal generation module, for according to second direct current
Power supply carries out reverse phase and shaping to third detection signal to generate the reverse phase Shaping Module of the second detection signal.
3. power supply electrifying detection circuit as claimed in claim 2, which is characterized in that the third detects signal generation module packet
Include the first triode, first resistor and second resistance；
The first end of the first resistor is the first input end that the third detects signal generation module, the first resistor
Second end is connect with the base stage of first triode, the collector of first triode and the first end of the second resistance
Collectively form the output end of the third detection signal generation module, the second end of the second resistance and second direct current
The emitter of source VBB connection, first triode is connect with power ground.
4. power supply electrifying detection circuit as claimed in claim 2, which is characterized in that the reverse phase Shaping Module includes Schmidt
Reverser；
The output end of the input terminal of Schmidt's reverser and Schmidt's reverser is respectively the reverse phase Shaping Module
First input end and output end, the power end of Schmidt's reverser is the second input terminal of the reverse phase Shaping Module,
The ground terminal of Schmidt's reverser is connect with power ground.
5. power supply electrifying detection circuit as described in claim 1, which is characterized in that the first detection module includes pressure stabilizing
Pipe；
The cathode of the voltage-stabiliser tube is the input terminal of the first detection module, just extremely described first detection of the voltage-stabiliser tube
The output end of module.
6. power supply electrifying detection circuit as described in claim 1, which is characterized in that the delay startup module includes first effect
Ying Guan, the second triode, first capacitor, 3rd resistor and the 4th resistance；
The common structure of first end of the source electrode of first field-effect tube, the first end of the first capacitor and the 4th resistance
At the first input end of the delay startup module, the drain electrode of first field-effect tube is the output end of the delay startup module,
The grid of first field-effect tube and second end, the second end and the third of the 4th resistance of the first capacitor
The first end of resistance connects, and the second end of the 3rd resistor is connect with the collector of second triode, and the described 2nd 3
The emitter of pole pipe is connect with power ground.
7. a kind of ATM machine, which is characterized in that the ATM machine includes the power supply electrifying as described in claim 1 to 6 any one
Detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820399728.XU CN208421192U (en) | 2018-03-23 | 2018-03-23 | A kind of power supply electrifying detection circuit and ATM machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820399728.XU CN208421192U (en) | 2018-03-23 | 2018-03-23 | A kind of power supply electrifying detection circuit and ATM machine |
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| Publication Number | Publication Date |
|---|---|
| CN208421192U true CN208421192U (en) | 2019-01-22 |
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ID=65118133
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820399728.XU Expired - Fee Related CN208421192U (en) | 2018-03-23 | 2018-03-23 | A kind of power supply electrifying detection circuit and ATM machine |
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| Country | Link |
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| CN (1) | CN208421192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022078008A1 (en) * | 2020-10-16 | 2022-04-21 | 浪潮电子信息产业股份有限公司 | Soft-start protection circuit and circuit protection integrated chip |
-
2018
- 2018-03-23 CN CN201820399728.XU patent/CN208421192U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022078008A1 (en) * | 2020-10-16 | 2022-04-21 | 浪潮电子信息产业股份有限公司 | Soft-start protection circuit and circuit protection integrated chip |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 |