CN207265861U - A kind of charge pump unit circuit for voltage stabilizing driving bootstrapping - Google Patents
A kind of charge pump unit circuit for voltage stabilizing driving bootstrapping Download PDFInfo
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- CN207265861U CN207265861U CN201721313288.3U CN201721313288U CN207265861U CN 207265861 U CN207265861 U CN 207265861U CN 201721313288 U CN201721313288 U CN 201721313288U CN 207265861 U CN207265861 U CN 207265861U
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Abstract
The utility model discloses a kind of charge pump unit circuit for voltage stabilizing driving bootstrapping, including：Voltage raise circuit, MCU control unit, driving power, charge pump unit circuit；The voltage raise circuit is connected with the MCU control unit, driving power and charge pump unit circuit, the voltage raise circuit is under the control of the drive signal of the MCU control unit, unstable driving power voltage is raised and is stablized in setting range of voltage values, is supplied to the charge pump unit circuit to work stable voltage.The utility model drives driving voltage boostrap circuit under by MCU control unit, unstable driving power voltage is raised, and stablized in the range of voltage values of setting, to drive charge pump unit circuit, driving force is improved by voltage raise circuit, the switching loss of field-effect tube is reduced, circuit structure is simple, be easily achieved, small power consumption, switching loss are small, high conversion efficiency, operating voltage range are wide.
Description
Technical field
It the utility model is related to regulator circuit technical field, more particularly to a kind of charge pump list for voltage stabilizing driving bootstrapping
First circuit.
Background technology
Drive circuit is that low voltage logic control signal is carried out power amplification, with driving power pipe reliably working, driving electricity
The final goal of road design is exactly device for power switching is operated in close under preferable on off state, reduces its switching loss,
The efficiency and reliability of total system is improved at the same time.The field-effect tube drive circuit of the prior art is directly driven such as by supply voltage
Fruit driving voltage is unstable or relatively low, and field-effect tube internal resistance can be caused higher and increase is lost, and by increasing discrete driving
Circuit can increase design difficulty and product design costs again.
Therefore, the technical problem that those skilled in the art urgently solve is needed to be exactly at present：How innovatively
It is proposed a kind of effective measures, a kind of charge pump unit circuit for voltage stabilizing driving bootstrapping of design.
Utility model content
To solve the above problems, the charge pump unit circuit booted is driven for voltage stabilizing the utility model discloses a kind of,
Including：Voltage raise circuit, MCU control unit, driving power, charge pump unit circuit；
The voltage raise circuit is connected with the MCU control unit, driving power and charge pump unit circuit, the electricity
Boostrap circuit is pressed under the control of the drive signal of the MCU control unit, by unstable driving power voltage rise and steady
It is scheduled in setting range of voltage values, is supplied to the charge pump unit circuit to work stable voltage.
It is described in another embodiment of the charge pump unit circuit for being used for voltage stabilizing driving bootstrapping based on the utility model
Voltage raise circuit includes multilevel voltage boostrap circuit unit.
It is described in another embodiment of the charge pump unit circuit for being used for voltage stabilizing driving bootstrapping based on the utility model
Voltage raise circuit includes 2 step voltage boostrap circuit units.
It is described in another embodiment of the charge pump unit circuit for being used for voltage stabilizing driving bootstrapping based on the utility model
Voltage raise circuit unit includes：Capacitance C1, capacitance C2, diode D1, diode D2, input power VCC, input power
VDD1;
The diode D1 connections input power VCC, and it is in parallel with capacitance C1, and the capacitance C1 and MCU controls are single
The drive signal connection of member；
The diode D2 and the capacitance C1, the parallel circuit in series of diode D1, it is then in parallel with the capacitance C2
Input power VDD1 is connected afterwards；
The capacitance C2 ground connection.
It is described in another embodiment of the charge pump unit circuit for being used for voltage stabilizing driving bootstrapping based on the utility model
Charge pump unit circuit includes resistance R1, resistance R2, field-effect tube Q1；
Described resistance R1 one end connects voltage raise circuit, the grid of other end connection resistance R2 and field-effect tube Q1, source
Extremely circuit in parallel, the other end ground connection of the resistance R2, the grounded drain of the field-effect tube Q1.
Compared with prior art, the utility model includes advantages below：
The utility model drives driving voltage boostrap circuit under by MCU control unit, by unstable driving power
Voltage raises, and is stablized in the range of voltage values of setting, and to drive charge pump unit circuit, the utility model is directed to
Supply voltage it is unstable or it is relatively low cause field-effect tube internal resistance it is higher loss increase, driving energy is improved by voltage raise circuit
Power, reduces the switching loss of field-effect tube, the utility model circuit structure is simple, be easily achieved, small power consumption, switching loss are small,
High conversion efficiency, operating voltage range are wide.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or the attached drawing used in description of the prior art does one and simply introduces, it should be apparent that, drawings in the following description are this realities
With some new embodiments, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of electricity of one embodiment of charge pump unit circuit for voltage stabilizing driving bootstrapping of the utility model
Lu Tu.
In figure：1 voltage raise circuit, 2 MCU control units, 3 driving powers, 4 charge pump unit circuits.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's all other embodiments obtained without making creative work, all belong to
In the scope of the utility model protection.
Fig. 1 is a kind of knot of one embodiment of charge pump unit circuit for voltage stabilizing driving bootstrapping of the utility model
Structure schematic diagram, as shown in Figure 1, the charge pump unit circuit for voltage stabilizing driving bootstrapping, including：
Voltage raise circuit 1, MCU control unit 2, driving power 3, charge pump unit circuit 4；
The voltage raise circuit 1 is connected with the MCU control unit 2, driving power 3 and charge pump unit circuit 4, institute
Voltage raise circuit 1 is stated under the control of the drive signal of the MCU control unit 2, by unstable 3 voltage liter of driving power
It is high and stable in setting range of voltage values, it is supplied to the charge pump unit circuit 4 to work stable voltage.
In a specific embodiment, the voltage raise circuit 1 includes multilevel voltage boostrap circuit unit.
In a specific embodiment, the voltage raise circuit includes 2 step voltage boostrap circuit units.
The voltage raise circuit unit includes：Capacitance C1, capacitance C2, diode D1, diode D2, input power VCC,
Input power VDD1;
The diode D1 connections input power VCC, and it is in parallel with capacitance C1, and the capacitance C1 and MCU controls are single
The drive signal connection of member 2；
The diode D2 and the capacitance C1, the parallel circuit in series of diode D1, it is then in parallel with the capacitance C2
Input power VDD1 is connected afterwards；
The capacitance C2 ground connection.
Voltage raise circuit unit is quickly right by the drive signal PWM1 output 1KHz pulse signals of MCU control unit 2
Capacitance C1 carries out discharge and recharge, using the one-way conduction characteristic of diode D1, diode D2, isolates as afterflow, passes through capacitance C2
Energy stores and voltage stabilizing are carried out, so as to lift driving output voltage.
Similarly, for multilevel voltage boostrap circuit unit, the output voltage conduct through upper level voltage raise circuit unit
The input power of next stage voltage raise circuit unit, final output are the voltage of setting voltage parameter.
The charge pump unit circuit 4 includes resistance R1, resistance R2, field-effect tube Q1；
Described resistance R1 one end connects voltage raise circuit, the grid of other end connection resistance R2 and field-effect tube Q1, source
Extremely circuit in parallel, the other end ground connection of the resistance R2, the grounded drain of the field-effect tube Q1.
Field-effect tube Q1 receives the output voltage of voltage raise circuit 1, and the switching loss of field-effect tube is reduced.
A kind of charge pump unit circuit for voltage stabilizing driving bootstrapping provided by the utility model has been carried out in detail above
Thin to introduce, specific case used herein is set forth the principle and embodiment of the utility model, above example
Explanation be only intended to help to understand the method and its core concept of the utility model；Meanwhile for the general technology of this area
Personnel, according to the thought of the utility model, there will be changes in specific embodiments and applications, in conclusion
This specification content should not be construed as the limitation to the utility model.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic
Equivalent substitution is carried out, where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
- A kind of 1. charge pump unit circuit for voltage stabilizing driving bootstrapping, it is characterised in that including：Voltage raise circuit, MCU control unit, driving power, charge pump unit circuit；The voltage raise circuit is connected with the MCU control unit, driving power and charge pump unit circuit, and the voltage is certainly Circuit is lifted under the control of the drive signal of the MCU control unit, unstable driving power voltage is raised and stablized Set in range of voltage values, be supplied to the charge pump unit circuit to work stable voltage.
- 2. the charge pump unit circuit according to claim 1 for voltage stabilizing driving bootstrapping, it is characterised in that the voltage Boostrap circuit includes multilevel voltage boostrap circuit unit.
- 3. the charge pump unit circuit according to claim 2 for voltage stabilizing driving bootstrapping, it is characterised in that the voltage Boostrap circuit includes 2 step voltage boostrap circuit units.
- 4. the charge pump unit circuit for being used for voltage stabilizing driving bootstrapping according to Claims 2 or 3, it is characterised in that described Voltage raise circuit unit includes：Capacitance C1, capacitance C2, diode D1, diode D2, input power VCC, input power VDD1;The diode D1 connections input power VCC, and, the capacitance C1 and the MCU control unit in parallel with capacitance C1 Drive signal connects；The diode D2 and the capacitance C1, the parallel circuit in series of diode D1, connect after then in parallel with the capacitance C2 Meet input power VDD1；The capacitance C2 ground connection.
- 5. the charge pump unit circuit according to claim 1 for voltage stabilizing driving bootstrapping, it is characterised in that the electric charge Pump unit circuit includes resistance R1, resistance R2, field-effect tube Q1；Described resistance R1 one end connects voltage raise circuit, and the other end connects the grid of resistance R2 and field-effect tube Q1, source electrode simultaneously The circuit of connection, the other end ground connection of the resistance R2, the grounded drain of the field-effect tube Q1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721313288.3U CN207265861U (en) | 2017-10-12 | 2017-10-12 | A kind of charge pump unit circuit for voltage stabilizing driving bootstrapping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721313288.3U CN207265861U (en) | 2017-10-12 | 2017-10-12 | A kind of charge pump unit circuit for voltage stabilizing driving bootstrapping |
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| Publication Number | Publication Date |
|---|---|
| CN207265861U true CN207265861U (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721313288.3U Active CN207265861U (en) | 2017-10-12 | 2017-10-12 | A kind of charge pump unit circuit for voltage stabilizing driving bootstrapping |
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| CN (1) | CN207265861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809063A (en) * | 2018-06-15 | 2018-11-13 | 电子科技大学 | A kind of driving boostrap circuit of full Embedded |
-
2017
- 2017-10-12 CN CN201721313288.3U patent/CN207265861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809063A (en) * | 2018-06-15 | 2018-11-13 | 电子科技大学 | A kind of driving boostrap circuit of full Embedded |
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