CN217216380U - Simple IGBT drive realization system of variable frequency power supply - Google Patents
Simple IGBT drive realization system of variable frequency power supply Download PDFInfo
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- CN217216380U CN217216380U CN202220829309.1U CN202220829309U CN217216380U CN 217216380 U CN217216380 U CN 217216380U CN 202220829309 U CN202220829309 U CN 202220829309U CN 217216380 U CN217216380 U CN 217216380U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model belongs to the technical field of variable frequency power supply, and a simple IGBT drive realization system of variable frequency power supply is disclosed, including signal opto-coupler isolation circuit and drive amplifier circuit, resistance R10's output is divided into two respectively with triode Q1, triode Q7's receiving terminal electric connection, triode Q1's output electric connection is at resistance R16's receiving terminal, resistance R16's output respectively with electric capacity C1, stabilivolt Z1's receiving terminal electric connection. The utility model discloses a set up signal opto-coupler buffer circuit and drive amplifier circuit cooperation work, utilize opto-coupler buffer circuit to realize drive signal and control signal's isolation, through in drive amplifier circuit, realize that drive signal enlargies, adopt above-mentioned scheme, this method does not have any requirement to variable frequency power source IGBT drive in service behavior, can use under any possible short circuit condition as any power, any occasion that need variable frequency power source power supply.
Description
Technical Field
The utility model belongs to the technical field of variable frequency power supply, specifically a simple IGBT drive of variable frequency power supply realizes system.
Background
The frequency conversion power supply outputs pure sine waves by AC → DC → AC conversion of the alternating current in the commercial power, the output frequency and the voltage can be adjusted in a certain range, the frequency conversion power supply is different from a frequency conversion speed regulation controller used for motor speed regulation and is also different from a common alternating current stabilized power supply, the ideal alternating current power supply has the characteristics of stable frequency, stable voltage, zero internal resistance and pure sine wave (without distortion) voltage waveform, and the frequency conversion power supply is very close to the ideal alternating current power supply, so that the frequency conversion power supply is increasingly used as a standard power supply in advanced developed countries so as to provide the best power supply environment for electrical appliances, the technical performance of objective electrical appliance assessment is facilitated, and the frequency conversion power supply mainly has two types: linear amplification type and SPWM switch type, the variable frequency power supply IGBT drive on the market at present is Japan mitsubishi and Yingfei, the drive module volume that above-mentioned company designed is great, can only adapt to with IGBT more than 100A, for IGBT 100A, also can use reluctantly, but do not suit in small volume space to drive the module and also do not buy yet.
Therefore, under the circumstance, the development of a simple IGBT driving implementation system of a variable frequency power supply is urgently needed to replace the product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at above problem, the utility model provides a simple IGBT drive of variable frequency power supply realizes system has reliable operation, simple IGBT drive and small advantage.
In order to achieve the above object, the utility model provides a following technical scheme: a simple IGBT drive realization system of a variable frequency power supply comprises a signal optocoupler isolation circuit and a drive amplification circuit, wherein the signal optocoupler isolation circuit comprises a U1 optocoupler chip and a resistor R1, the drive amplification circuit comprises a resistor R16, a capacitor C1, a voltage regulator tube Z1, a resistor R10, a triode Q1, a triode Q7, a resistor R42 and a resistor R23, the input end of the U1 optocoupler chip is electrically connected with the output end of the resistor R1 and the output end of an SPWM1 drive signal respectively, the other end of the resistor R1 is connected with a 15V voltage, the output end of the U1 optocoupler chip outputs an SPWM1-1 drive signal, the output end of the SPWM1-1 drive signal is electrically connected with the receiving end of a resistor R10, the output end of the resistor R10 is divided into two parts and is electrically connected with the receiving ends of the triode Q1 and the triode Q7 respectively, the output end of the triode Q1 is electrically connected with the receiving end of the resistor R16, the output end of the resistor R16 is electrically connected with the receiving ends of the capacitor C1 and the voltage regulator tube Z1 respectively, the output end of the triode Q1 is also electrically connected with the receiving end of the resistor R42, and the output end of the resistor R42 is electrically connected with the receiving end of the resistor R23.
As an optimized technical solution of the present invention, the resistance of the resistor R16 is 1K, the resistance of the resistor R1 is 1.2K, the resistance of the resistor R10 is 30R, the resistance of the resistor R42 is 15R, the resistance of the resistor R23 is 10K, the TLP250 is adopted by the U1 optocoupler chip, the 100uF25V is adopted by the capacitor C1, the D44H11G is adopted by the triode Q1, and the D45H11G is adopted by the triode Q7.
As a preferred technical solution of the present invention, the resistor R16, the capacitor C1 and the voltage regulator tube Z1 form a point E1 and the voltage of the point E1 is 4.7V.
As a preferred technical scheme of the utility model, the output of U1 opto-coupler chip, triode Q7 and stabilivolt Z1 all is the wiring earthing terminal and handles.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a set up signal opto-coupler buffer circuit and drive amplifier circuit cooperation work, utilize opto-coupler buffer circuit to realize drive signal and control signal's isolation, through in drive amplifier circuit, realize that drive signal enlargies, adopt above-mentioned scheme, this method does not have any requirement to variable frequency power source IGBT drive in service behavior, can satisfy any power, any occasion of variable frequency power source power supply, the use under any possible short circuit condition.
Drawings
Fig. 1 is the overall circuit layout diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a simple IGBT drive implementation system of variable frequency power supply, including signal optical coupling isolation circuit and drive amplifier circuit, signal optical coupling isolation circuit includes U1 optical coupling chip and resistance R1, drive amplifier circuit includes resistance R16, electric capacity C1, stabilivolt Z1, resistance R10, triode Q1, triode Q7, resistance R42 and resistance R23, the input end of U1 optical coupling chip is electrically connected with the output end of resistance R1 and the output end of SPWM1 drive signal respectively, the other end of resistance R1 is connected into 15V voltage, the output end of U1 optical coupling chip outputs SPWM1-1 drive signal, the output end of SPWM1-1 drive signal is electrically connected at the receiving end of resistance R10, the output end of resistance R10 is divided into two respectively with triode Q1, triode Q7's electrical connection, the output end of triode Q1 is electrically connected at the receiving end of resistance R16, the output end of the resistor R16 is electrically connected with the receiving ends of the capacitor C1 and the voltage regulator tube Z1 respectively, the output end of the triode Q1 is also electrically connected with the receiving end of the resistor R42, and the output end of the resistor R42 is electrically connected with the receiving end of the resistor R23; a driving signal (SPWM 1) controlled by a variable frequency power supply passes through an optical coupler chip to form a new driving signal (SPWM 1-1), and the two signals are electrically isolated by the optical coupler.
The resistance value of the resistor R16 is 1K, the resistance value of the resistor R1 is 1.2K, the resistance value of the resistor R10 is 30R, the resistance value of the resistor R42 is 15R, the resistance value of the resistor R23 is 10K, the U1 optocoupler chip is TLP250, the capacitor C1 is 100uF25V, the triode Q1 is D44H11G, and the triode Q7 is D45H 11G.
The resistor R16, the capacitor C1 and the voltage regulator tube Z1 form a point E1, and the voltage of the point E1 is 4.7V.
And the output ends of the U1 optocoupler chip, the triode Q7 and the voltage regulator tube Z1 are all connected with the ground ends of the wires.
The utility model discloses a theory of operation and use flow:
the SPWM1-1 driving signal is transmitted to an amplifying circuit consisting of a triode Q1 and a triode Q7 through a resistor R10 for driving amplification, and then is output to an IGBT through a resistor R42, and a resistor R42 is a driving current limiting resistor, and the resistance value can be changed along with the change of the driving IGBT.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a simple IGBT drive of variable frequency power supply realizes system, includes signal opto-coupler isolation circuit and drive amplifier circuit, signal opto-coupler isolation circuit is including U1 opto-coupler chip and resistance R1, drive amplifier circuit is including resistance R16, electric capacity C1, stabilivolt Z1, resistance R10, triode Q1, triode Q7, resistance R42 and resistance R23, its characterized in that: the input end of the U1 optical coupler chip is electrically connected to the output end of a resistor R1 and the output end of an SPWM1 driving signal respectively, the other end of the resistor R1 is connected with a 15V voltage, the output end of the U1 optical coupler chip outputs an SPWM1-1 driving signal, the output end of the SPWM1-1 driving signal is electrically connected to the receiving end of a resistor R10, the output end of the resistor R10 is divided into two parts and is electrically connected to the receiving ends of a triode Q1 and a triode Q7 respectively, the output end of the triode Q1 is electrically connected to the receiving end of the resistor R16, the output end of the resistor R16 is electrically connected to the receiving ends of a capacitor C1 and a voltage regulator Z1 respectively, the output end of the triode Q1 is also electrically connected to the receiving end of the resistor R42, and the output end of the resistor R42 is electrically connected to the receiving end of a resistor R23.
2. The simple IGBT driving realization system of the variable frequency power supply according to claim 1, characterized in that: the resistance value of the resistor R16 is 1K, the resistance value of the resistor R1 is 1.2K, the resistance value of the resistor R10 is 30R, the resistance value of the resistor R42 is 15R, the resistance value of the resistor R23 is 10K, the U1 optocoupler chip is TLP250, the capacitor C1 is 100uF25V, the triode Q1 is D44H11G, and the triode Q7 is D45H 11G.
3. The simple IGBT driving realization system of the variable frequency power supply according to claim 1, characterized in that: the resistor R16, the capacitor C1 and the voltage regulator tube Z1 form a point E1, and the voltage of the point E1 is 4.7V.
4. The simple IGBT driving realization system of the variable frequency power supply according to claim 1, characterized in that: and the output ends of the U1 optocoupler chip, the triode Q7 and the voltage regulator tube Z1 are all connected with the ground ends of wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220829309.1U CN217216380U (en) | 2022-04-12 | 2022-04-12 | Simple IGBT drive realization system of variable frequency power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220829309.1U CN217216380U (en) | 2022-04-12 | 2022-04-12 | Simple IGBT drive realization system of variable frequency power supply |
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| CN217216380U true CN217216380U (en) | 2022-08-16 |
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| CN202220829309.1U Active CN217216380U (en) | 2022-04-12 | 2022-04-12 | Simple IGBT drive realization system of variable frequency power supply |
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- 2022-04-12 CN CN202220829309.1U patent/CN217216380U/en active Active
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