CN208386416U - A kind of DC power converter - Google Patents
A kind of DC power converter Download PDFInfo
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- CN208386416U CN208386416U CN201820733297.6U CN201820733297U CN208386416U CN 208386416 U CN208386416 U CN 208386416U CN 201820733297 U CN201820733297 U CN 201820733297U CN 208386416 U CN208386416 U CN 208386416U
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Abstract
The utility model provides a kind of DC power converter, the DC power converter includes governor circuit, power supply input circuit, voltage regulator circuit, voltage commutation circuit and voltage output end, and power supply input circuit provides power supply to governor circuit, voltage regulator circuit and voltage commutation circuit；The input voltage of governor circuit acquisition power supply input circuit, governor circuit sends control signal to voltage regulator circuit according to input voltage, voltage regulator circuit exports voltage of voltage regulation to voltage commutation circuit according to control signal, and voltage commutation circuit switches the output voltage of voltage output end output.It can be realized using the DC power converter of the utility model and pressure stabilizing is carried out to unstable power supply.
Description
Technical field
The utility model relates to power-supply device technical fields, specifically, being related to a kind of DC power converter.
Background technique
With the development of power technology, there is such as steam-electric power plant, hand generator in existing power-supply device
Etc. unstable power-supply device, steam-electric power plant is since solar illuminating is unstable or hand generator is in rotary speed unstabilization timing
It is be easy to cause unstable power supply, some electrical equipments for needing stable power-supplying is not met and uses, to limit unstable power supply
The usage degree of equipment.Therefore, the power demand under various environmental conditions, and reduction solar power generation are set in order to meet
The unstable power-supply device such as standby, hand generator uses difficulty, needs to carry out pressure stabilizing to the power supply that unstable power-supply device exports
Processing, to ensure the stability of power supply.
Summary of the invention
The main purpose of the utility model is to provide a kind of DC power converter that pressure stabilizing can be carried out to unstable power supply.
In order to achieve the above-mentioned main objectives, DC power converter provided by the utility model includes governor circuit, power supply
Input circuit, voltage regulator circuit, voltage commutation circuit and voltage output end, power supply input circuit to governor circuit, voltage regulator circuit and
Voltage commutation circuit provides power supply；Governor circuit obtains the input voltage of power supply input circuit, and governor circuit is according to input voltage
Control signal is sent to voltage regulator circuit, voltage regulator circuit exports voltage of voltage regulation to voltage commutation circuit according to control signal, and voltage is cut
Change the output voltage of circuit switching voltage output end output.
By above scheme as it can be seen that the DC power converter of the utility model obtains power supply input circuit by governor circuit
Input voltage number, according to input voltage to voltage regulator circuit send control signal, control voltage regulator circuit input voltage is risen
Pressure or reduction regulation, so that the output of power supply be made to stablize in rated value, ensure power supply stablizes output.
In further embodiment, voltage regulator circuit includes booster circuit and reduction voltage circuit, booster circuit respectively with governor circuit
It is electrically connected with power supply input circuit, the output end of booster circuit is electrically connected with the input terminal of reduction voltage circuit, the output of reduction voltage circuit
End is electrically connected with governor circuit and voltage commutation circuit respectively.
It can be seen that voltage regulator circuit includes booster circuit and reduction voltage circuit, input voltage is risen by booster circuit
Pressure adjusts and carries out reduction regulation to input voltage by reduction voltage circuit, so that unstable power input be made to be converted into stablizing
Voltage.
In further embodiment, voltage commutation circuit includes switching switch element and multichannel bleeder circuit, multichannel partial pressure electricity
Road is electrically connected with switching switch element respectively, and the output end for switching switch element is electrically connected with voltage output end.
It can be seen that the voltage of voltage regulator circuit output is stable voltage value, pass through setting switching switch element switching point
The use of volt circuit, so that the voltage of the exportable different amplitudes of DC power converter, to meet the confession to a variety of electrical equipments
Electricity demanding.
In further embodiment, DC power converter further includes display circuit, and display circuit is electrically connected with governor circuit.
It can be seen that knowing the voltage currently exported for the ease of user, voltage is carried out using display circuit and is shown, is convenient for
The switching of user's progress voltage.
In further embodiment, power supply input circuit is provided with voltage-stablizer and filter circuit, voltage-stablizer and filter circuit electricity
Connection.
It can be seen that the DC power voltage stabilizing of external world's input is turned at DC power supply by setting voltage-stablizer and filter circuit
The starting voltage that each electronic component needs in parallel operation, work normally DC power converter can.
Detailed description of the invention
Fig. 1 is the circuit structure block diagram of the utility model DC power converter embodiment.
Fig. 2 is the circuit diagram of voltage regulator circuit in the utility model DC power converter embodiment.
Fig. 3 is the circuit diagram of voltage commutation circuit in the utility model DC power converter embodiment.
Fig. 4 is the circuit diagram of display circuit in the utility model DC power converter embodiment.
Fig. 5 is the circuit diagram of power supply input circuit in the utility model DC power converter embodiment.
Fig. 6 is the flow chart of the working method embodiment of the utility model DC power converter.
Fig. 7 is the flow chart of real-time pressure stabilizing step in the working method embodiment of the utility model DC power converter.
Fig. 8 is the flow chart that pressure stabilizing proposes effect step in the working method embodiment of the utility model DC power converter.
The following is a further explanation of the present invention with reference to the accompanying drawings and embodiments.
Specific embodiment
As shown in Figure 1, the DC power converter of the utility model includes governor circuit 1, power supply input circuit 2, pressure stabilizing
Circuit 3, voltage commutation circuit 4, voltage output end 5 and display circuit 6, power supply input circuit 2 is to governor circuit 1, voltage regulator circuit
3, voltage commutation circuit 4 and display circuit 6 provide power supply.Governor circuit 1 obtains the input voltage of power supply input circuit 2, master control
Circuit 1 sends control signal to voltage regulator circuit 3 according to input voltage, and voltage regulator circuit 3 is according to control signal to voltage commutation circuit 4
Voltage of voltage regulation is exported, voltage commutation circuit 4 switches the output voltage that voltage output end 5 exports.Display circuit 6 and governor circuit 1
Electrical connection.
Referring to fig. 2, voltage regulator circuit 3 include booster circuit 31 and reduction voltage circuit 32, booster circuit 31 respectively with governor circuit 1
It is electrically connected with power supply input circuit 2, the output end of booster circuit 31 is electrically connected with the input terminal of reduction voltage circuit 32, reduction voltage circuit 32
Output end be electrically connected respectively with governor circuit 1 and voltage commutation circuit 4.In the present embodiment, booster circuit 31 includes HM6299
The boost chip of model, reduction voltage circuit 32 include the decompression chip of HM3102 model.
Referring to Fig. 3, voltage commutation circuit 4 includes switching switch element S1 and multichannel bleeder circuit 41, multichannel bleeder circuit
41 are electrically connected with switching switch element S1 respectively, and the output end of switching switch element S1 is electrically connected with voltage output end 5.This implementation
In example, switching switch element S1 is knob change-over switch, and switching switch element S1 passes through terminal 42 and terminal 43 and reduction voltage circuit
32 electrical connections, bleeder circuit 41 include in parallel resistance R1 and resistance R2, the resistance value of resistance R1 and resistance R2 can as needed into
Row setting, by switching switch element S1 by the use of switching bleeder circuit 41, to obtain the output of different voltages.
Referring to fig. 4, display circuit 6 includes driving chip U1 and charactron DIG, and driving chip U1 obtains governor circuit 1
Driving signal, driving chip U1 send display information to charactron DIG according to driving signal, and charactron DIG can show current defeated
The amplitude of voltage out.Preferably, driving chip U1 is the driving chip of SN74HC595N model.
Referring to Fig. 5, power supply input circuit 2 is provided with voltage-stablizer U2 and filter circuit 21, and the input terminal of voltage-stablizer U2 passes through
Terminal 22 is electrically connected with extraneous input power, and the output end of voltage-stablizer U2 is electrically connected with filter circuit 21, and power supply input circuit 2 is logical
It crosses terminal 23 and provides power supply to 1 voltage regulator circuit 3 of governor circuit and display circuit 6.Wherein, filter circuit 21 includes capacitor in parallel
C1 and capacitor C2.Power supply input circuit 2 is provided with voltage-stablizer U2 and filter circuit 21, can be to the inside of DC power converter electricity
Road provides driving voltage, ensures the normal work of each circuit module.
In order to be described in more detail to the utility model DC power converter, the utility model DC power supply is turned below
The working method of parallel operation is described, and the working method of the utility model DC power converter is applied in governor circuit 1
Computer program.
As shown in fig. 6, step S1 when being worked, is first carried out in the DC power converter of the utility model, obtain
The input voltage of power supply input circuit 2.Judge for the ease of the size to input voltage, and convenient for being supervised to voltage
It surveys, when carrying out pressure stabilizing work, acquisition of information need to be carried out to input voltage first, analyze the amplitude size of input voltage.
After obtaining input voltage, step S2 is executed, judges whether input voltage is greater than or equal to predeterminated voltage.In extraneous electricity
When DC power converter is accessed in source, there are the processes that voltage rises, at this point, there is electric energy deficiency, can not make direct current
Power adapter is normally worked, and is unfavorable for voltage regulator circuit 3 and is carried out pressure stabilizing operation to input voltage.Therefore, it is necessary to input
When voltage reaches certain voltage value, pressure stabilizing operation just is carried out to input voltage, to improve the stability of pressure stabilizing.
When judging that input voltage is greater than or equal to predeterminated voltage, step S3 is executed, real-time pressure stabilizing regulating step is executed, it is right
Input voltage is adjusted in real time, exports voltage stabilization.When determining that input voltage is less than predeterminated voltage, executes pressure stabilizing and propose effect
Step S4 carries out pressure stabilizing to the voltage of input and proposes effect, and acceleration voltage reaches preset voltage value.
Referring to Fig. 7, when executing step S3, step S31 is first carried out, obtains the voltage of input voltage prefixed time interval
Changing value.Wherein, voltage change is in prefixed time interval, and the input voltage of latter time subtracts the input electricity of previous time
The value of pressure.In order to judge whether input voltage is more than preset voltage value, to carry out pressure stabilizing adjusting to input voltage, need to defeated
The voltage change for entering voltage is monitored in real time.Prefixed time interval can be configured by developer, in order to ensure steady
The real-time of pressure, can be by the as small as possible of prefixed time interval setting, for example, prefixed time interval is set as 20 microseconds.
After the voltage change for obtaining input voltage prefixed time interval, step S32 is executed, whether judges voltage change
It is positive, the positive and negative of voltage change represents being raised and lowered for input voltage.When judging that voltage change for timing, then illustrates defeated
Enter voltage and be in raised state, then follow the steps S33, it is maximum pre- to judge whether the decompression adjustable factors of reduction voltage circuit are less than
If the reduction regulation factor.Since the decompression chip in reduction voltage circuit 32 has specific reduction regulation section, reduction regulation section
It can be controlled to adjust by governor circuit 1, by being depressured the judgement of adjustable factors, can determine whether to need reduction voltage circuit 32
Carry out reduction regulation.Therefore, it when judging voltage change for timing, needs to carry out reduction regulation, when judging that voltage change is
It when negative, then do not need to carry out reduction regulation, S31 need to be re-execute the steps, the voltage for obtaining input voltage prefixed time interval becomes
Change value.
When decompression adjustable factors are less than maximum preset reduction regulation because of the period of the day from 11 p.m. to 1 a.m, execution step S34 increases reduction voltage circuit 32
Decompression adjustable factors and to voltage regulator circuit 3 send control signal.When voltage change is positive and to be depressured adjustable factors small
In maximum preset reduction regulation because of the period of the day from 11 p.m. to 1 a.m, then it is assumed that voltage is higher, needs to further increase decompression adjustable factors, makes decompression electricity
Road 32 increases the decompression to input voltage.The step of increasing decompression adjustable factors includes: can to decompression with the first predetermined amplitude
Regulatory factor is incrementally increased.Decompression adjustable factors are incrementally increased with the first predetermined amplitude, the standard of decompression can be made
True property improves, wherein the first predetermined amplitude can be obtained by experiment.It needs to send to voltage regulator circuit 3 after increasing decompression adjustable factors
Signal is controlled, is adjusted to control reduction voltage circuit 32.
It is greater than or equal to maximum preset reduction regulation because of the period of the day from 11 p.m. to 1 a.m when being depressured adjustable factors, thens follow the steps S35, judge to rise
Whether the boosting adjustable factors of volt circuit 31 are less than maximum preset boosting regulatory factor.When judgement decompression adjustable factors are greater than
Or it is equal to maximum preset reduction regulation because of the period of the day from 11 p.m. to 1 a.m, then it is assumed that need to carry out judging whether that boosting is needed to handle to input voltage.By
There is specific boosting to adjust section for boost chip in booster circuit 31, boosting adjust section can by governor circuit 1 into
Row controls to adjust, and by the judgement for the adjustable factors that boost, can determine whether that booster circuit 31 is needed to carry out reduction regulation.
When the boosting adjustable factors for judging booster circuit are less than maximum preset boosting regulatory factor, then follow the steps
S36 increases boosting adjustable factors and sends control signal to voltage regulator circuit 3.When the boosting for judging booster circuit it is adjustable because
When son is less than maximum preset boosting regulatory factor, then it is assumed that voltage is lower, needs to further increase boosting adjustable factors, makes to rise
Volt circuit 31 increases the boosting to input voltage.The step of increasing boosting adjustable factors includes: with the second predetermined amplitude to liter
Pressure adjustable factors are incrementally increased.Boosting adjustable factors are incrementally increased with the second predetermined amplitude, can make to boost
Accuracy improve, wherein the second predetermined amplitude can by experiment obtain.It needs after increasing boosting adjustable factors to voltage regulator circuit 3
Control signal is sent, is adjusted to control booster circuit 31.
Referring to Fig. 8, effect step S4 is mentioned executing pressure stabilizing, step S41 is first carried out, judges that the boosting of booster circuit is adjustable
Whether the factor is greater than minimum default boosting regulatory factor.Input voltage is less than predeterminated voltage, then input voltage rises also in initial
The state of pressure needs to carry out adjusting appropriate to booster circuit 31 and reduction voltage circuit 32 at this time, reduces the loss of electric energy, thus most
The unstable power supply using input of limits, makes voltage fast and stable, improves pressure stabilizing efficiency.Therefore, judging input voltage
When less than predeterminated voltage, first determine whether the boosting adjustable factors of booster circuit 31 whether be greater than minimum default boosting adjust because
Son.If the boosting adjustable factors of booster circuit 31 are greater than minimum default boosting regulatory factor, S42 is thened follow the steps, reduces and rises
It presses adjustable factors and sends control signal to voltage regulator circuit 3.It needs to send control to voltage regulator circuit 3 after reducing boosting adjustable factors
Signal processed is adjusted to control booster circuit 31.Reducing boosting adjustable factors can make booster circuit 31 be in low-power consumption
State reduces the loss to electric energy.
When the boosting adjustable factors for judging booster circuit 31 are less than or equal to minimum default boosting regulatory factor, execute
Step S43, judges whether the decompression adjustable factors of reduction voltage circuit 32 are greater than the minimum reduction regulation factor.When judging reduction voltage circuit
32 decompression adjustable factors are less than or equal to minimum reduction regulation because of the period of the day from 11 p.m. to 1 a.m, then it is assumed that reduction voltage circuit 32 is in low-power consumption shape
State no longer needs to that decompression adjustable factors are adjusted.When the decompression adjustable factors for judging reduction voltage circuit 32 are greater than minimum drop
When pressing regulatory factor, step S44 is executed, reduce decompression adjustable factors and sends control signal to voltage regulator circuit 3.Reduce decompression
It needs to send control signal to voltage regulator circuit 3 after adjustable factors, be adjusted to control reduction voltage circuit 32.It is adjustable to reduce decompression
The section factor can make reduction voltage circuit 32 be in low power consumpting state, reduce the loss to electric energy.
It can be seen from the above, the utility model DC power converter obtains the input of power supply input circuit by governor circuit
Voltage number sends control signal to voltage regulator circuit according to input voltage, and control voltage regulator circuit is boosted or dropped to input voltage
Pressure is adjusted, so that the output of power supply be made to stablize in rated value, ensure power supply stablizes output.In addition, DC power converter
For working method when judging that current input voltage is greater than predeterminated voltage, starting voltage regulator circuit carries out pressure stabilizing behaviour to input voltage
Make, adjusts output voltage in real time, make output voltage stabilization in rated value.
It should be noted that the above is only the preferred embodiment of the utility model, but the design concept invented is not limited to
It is all to conceive the insubstantial modifications made to the utility model using this in this, also each fall within the protection scope of the utility model
Within.
Claims (5)
1. a kind of DC power converter, which is characterized in that cut including governor circuit, power supply input circuit, voltage regulator circuit, voltage
Circuit and voltage output end are changed, the power supply input circuit switches to the governor circuit, the voltage regulator circuit and the voltage
Circuit provides power supply；
The governor circuit obtains the input voltage of the power supply input circuit, the governor circuit according to the input voltage to
The voltage regulator circuit sends control signal, and the voltage regulator circuit exports according to the control signal to the voltage commutation circuit steady
Piezoelectricity pressure, the voltage commutation circuit switch the output voltage of the voltage output end output.
2. DC power converter according to claim 1, which is characterized in that
The voltage regulator circuit includes booster circuit and reduction voltage circuit, and the booster circuit is defeated with the governor circuit and power supply respectively
Enter circuit electrical connection, the output end of the booster circuit is electrically connected with the input terminal of the reduction voltage circuit, the reduction voltage circuit
Output end is electrically connected with the governor circuit and the voltage commutation circuit respectively.
3. DC power converter according to claim 1, which is characterized in that
The voltage commutation circuit includes switching switch element and multichannel bleeder circuit, bleeder circuit described in multichannel respectively with it is described
Switch switch element electrical connection, the output end of the switching switch element is electrically connected with the voltage output end.
4. DC power converter according to any one of claims 1 to 3, which is characterized in that further include
Display circuit, the display circuit are electrically connected with the governor circuit.
5. DC power converter according to any one of claims 1 to 3, which is characterized in that
The power supply input circuit is provided with voltage-stablizer and filter circuit, and the voltage-stablizer is electrically connected with the filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820733297.6U CN208386416U (en) | 2018-05-16 | 2018-05-16 | A kind of DC power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820733297.6U CN208386416U (en) | 2018-05-16 | 2018-05-16 | A kind of DC power converter |
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| Publication Number | Publication Date |
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| CN208386416U true CN208386416U (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820733297.6U Active CN208386416U (en) | 2018-05-16 | 2018-05-16 | A kind of DC power converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400707A (en) * | 2018-05-16 | 2018-08-14 | 珠海市三森电子科技有限公司 | A kind of DC power converter and its working method |
-
2018
- 2018-05-16 CN CN201820733297.6U patent/CN208386416U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400707A (en) * | 2018-05-16 | 2018-08-14 | 珠海市三森电子科技有限公司 | A kind of DC power converter and its working method |
| CN108400707B (en) * | 2018-05-16 | 2024-03-26 | 珠海市三森电子科技有限公司 | DC power supply converter and working method thereof |
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