CN219247492U - Energy storage inverter power supply - Google Patents
Energy storage inverter power supply Download PDFInfo
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- CN219247492U CN219247492U CN202221744049.4U CN202221744049U CN219247492U CN 219247492 U CN219247492 U CN 219247492U CN 202221744049 U CN202221744049 U CN 202221744049U CN 219247492 U CN219247492 U CN 219247492U
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Abstract
The utility model relates to an energy storage inverter power supply, which comprises a pulse width modulation chip, a voltage control circuit and a transformer, wherein the pulse width modulation chip is connected with the voltage control circuit; the pulse width modulation chip and the transformer are connected with the storage battery, and the voltage control circuit is respectively connected with the pulse width modulation chip and the transformer; the voltage feedback circuit is respectively connected with the pulse width modulation chip and the transformer; when in use, the voltage control circuit and the transformer are matched to invert the 12V direct current of the storage battery into 220V alternating current; the pulse width modulation chip outputs a pulse signal with a certain duty ratio to control the voltage control circuit to be matched with the transformer for inversion; the voltage feedback circuit feeds back the output voltage of the transformer to the pulse width modulation chip, and the pulse width modulation chip adjusts the duty ratio of the pulse signal according to the output voltage of the transformer so as to control the output voltage of the transformer to be stabilized at 220V; the voltage stabilizing output is realized, the circuit is simple, the cost is low, the volume is small, and the use is convenient.
Description
Technical Field
The utility model relates to the technical field of inverter power supplies, and more particularly to an energy storage inverter power supply.
Background
The inverter power supply converts 12V or 24V direct current into 220V or 50Hz alternating current or other types of alternating current, and the output alternating current can meet the requirement of providing alternating current power supply for various electric equipment;
however, the output voltage of the existing inverter power supply is mostly reduced along with the increase of loads, voltage stabilization cannot be performed, unstable operation of electric equipment is caused, and user experience is seriously affected.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the energy storage inverter power supply which has the advantages of simple circuit, low cost, small volume, convenient use and wide applicability.
The technical scheme adopted for solving the technical problems is as follows:
an energy storage inverter power supply is constructed, and comprises a pulse width modulation chip, a voltage control circuit and a transformer; the pulse width modulation chip and the transformer are connected with the storage battery, and the voltage control circuit is respectively connected with the pulse width modulation chip and the transformer; the voltage feedback circuit is respectively connected with the pulse width modulation chip and the transformer;
the voltage control circuit and the transformer are matched to invert the 12V direct current of the storage battery into 220V alternating current; the pulse width modulation chip outputs a pulse signal with a certain duty ratio to control the voltage control circuit to be matched with the transformer for inversion; the voltage feedback circuit feeds back the output voltage of the transformer to the pulse width modulation chip, and the pulse width modulation chip adjusts the duty ratio of the pulse signal according to the output voltage of the transformer so as to control the output voltage of the transformer to be stabilized at 220V.
The second end of the primary coil of the transformer is connected with the positive electrode of the storage battery, and the first end and the third end of the primary coil of the transformer are connected with the voltage control circuit;
the VCC end, the C1 end and the C2 end of the pulse width modulation chip are connected with the positive electrode of the storage battery, the GND end is grounded, and the negative electrode of the storage battery is also grounded;
and the first end and the second end of the secondary coil of the transformer are the live wire output end and the zero wire output end of the 220V alternating current of the energy storage inverter power supply, and are connected with external electric equipment.
The utility model relates to an energy storage inverter power supply, wherein the voltage control circuit comprises a first field effect transistor, a second field effect transistor, a third field effect transistor, a fourth field effect transistor, a first triode and a second triode;
the sources of the first field effect transistor, the second field effect transistor, the third field effect transistor and the fourth field effect transistor are all grounded;
the drains of the first field effect tube and the second field effect tube are connected with the first end of the primary coil of the transformer; the drains of the third field effect transistor and the fourth field effect transistor are connected with the third end of the primary coil of the transformer;
the grid electrode of the first field effect transistor is connected with a first resistor, the grid electrode of the second field effect transistor is connected with a second resistor, the other end of the first resistor and the other end of the second resistor are both connected with the emitter electrode of the first triode, the collector electrode of the first triode is grounded, and the base electrode of the first triode is connected with the E1 end of the pulse width modulation chip; the base electrode of the first triode is also connected with a third resistor, and the other end of the third resistor is grounded;
the grid electrode of the three field effect transistors is connected with a fourth resistor, the grid electrode of the fourth field effect transistor is connected with a fifth resistor, the other end of the fourth resistor and the other end of the fifth resistor are both connected with the emitter electrode of the second triode, the collector electrode of the second triode is grounded, and the base electrode of the second triode is connected with the E2 end of the pulse width modulation chip; the base electrode of the second triode is also connected with a sixth resistor, and the other end of the sixth resistor is grounded.
The utility model relates to an energy storage inverter power supply, wherein the voltage feedback circuit comprises a seventh resistor, an eighth resistor, a diode and an adjustable resistor;
the seventh resistor is connected with the first end of the secondary coil of the transformer, the other end of the seventh resistor is connected with the anode of the diode and the eighth resistor, and the other end of the eighth resistor is grounded; the negative electrode of the diode is connected with the second end of the adjustable resistor, the first end of the adjustable resistor is connected with the +In1 end of the pulse width modulation chip, and the third end of the adjustable resistor is grounded.
The utility model discloses an energy storage inverter power supply, wherein a 5Vref end and a COut end of a pulse width modulation chip are connected IN parallel and are also connected with a first capacitor and a second capacitor, the positive electrode of the first capacitor and the positive electrode of the second capacitor are both connected with the 5Vref end of the pulse width modulation chip, the negative electrode of the first capacitor is grounded, the negative electrode of the second capacitor is connected with a ninth resistor and is also connected with the DTime end of the pulse width modulation chip, and the other end of the ninth resistor is connected with the +In2 end of the pulse width modulation chip and grounded;
the 5Vref end of the pulse width modulation chip is also connected with a tenth resistor and an eleventh resistor, the other end of the tenth resistor is connected with the-IN 1 end of the pulse width modulation chip, and the other end of the eleventh resistor is connected with the-IN 2 end of the pulse width modulation chip; a third capacitor is connected IN parallel with the PWN end and the-IN 2 end of the pulse width modulation chip, and a fourth capacitor is connected IN parallel with the PWM end and the-IN 1 end;
the other end of the eleventh resistor is connected with a twelfth resistor, and the other end of the twelfth resistor is grounded.
The utility model relates to an energy storage inverter power supply, wherein a switch is connected in series between the positive electrode of a storage battery and the VCC end, the C1 end and the C2 end of a pulse width modulation chip as well as the second end of a primary coil of a transformer.
The utility model relates to an energy storage inverter power supply, wherein the model TL494 of a pulse width modulation chip.
The utility model discloses an energy storage inverter power supply, which further comprises a voltmeter, wherein the voltmeter is connected with a live wire output end and a zero wire output end of 220V alternating current of the energy storage inverter power supply in parallel.
The utility model has the beneficial effects that: when in use, the voltage control circuit and the transformer are matched to invert the 12V direct current of the storage battery into 220V alternating current; the pulse width modulation chip outputs a pulse signal with a certain duty ratio to control the voltage control circuit to be matched with the transformer for inversion; the voltage feedback circuit feeds back the output voltage of the transformer to the pulse width modulation chip, and the pulse width modulation chip adjusts the duty ratio of the pulse signal according to the output voltage of the transformer so as to control the output voltage of the transformer to be stabilized at 220V; the voltage stabilizing output is realized, the circuit is simple, the cost is low, the volume is small, and the use is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:
fig. 1 is a schematic circuit diagram of an energy storage inverter power supply according to a preferred embodiment of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
The energy storage inverter power supply of the preferred embodiment of the utility model is shown in fig. 1; comprises a pulse width modulation chip IC1, a voltage control circuit 100 and a transformer GR1; the pulse width modulation chip IC1 and the transformer GR1 are connected with the storage battery BAT1, and the voltage control circuit 100 is respectively connected with the pulse width modulation chip IC1 and the transformer GR1; the voltage feedback circuit 200 is respectively connected with the pulse width modulation chip IC1 and the transformer GR1;
the voltage control circuit 100 and the transformer GR1 cooperate to invert the 12V dc power of the battery BAT1 into 220V ac power; the pulse width modulation chip IC1 outputs a pulse signal with a certain duty ratio to control the voltage control circuit 100 to be matched with the transformer GR1 for inversion; the voltage feedback circuit 200 feeds back the output voltage of the transformer GR1 to the pulse width modulation chip IC1, and the pulse width modulation chip IC1 adjusts the duty ratio of the pulse signal according to the output voltage of the transformer GR1 to control the output voltage of the transformer GR1 to be stabilized at 220V;
when in use, the voltage control circuit 100 and the transformer GR1 are matched to invert the 12V direct current of the storage battery BAT1 into 220V alternating current; the pulse width modulation chip IC1 outputs a pulse signal with a certain duty ratio to control the voltage control circuit 100 to be matched with the transformer GR1 for inversion; the voltage feedback circuit 200 feeds back the output voltage of the transformer GR1 to the pulse width modulation chip IC1, and the pulse width modulation chip IC1 adjusts the duty ratio of the pulse signal according to the output voltage of the transformer GR1 to control the output voltage of the transformer GR1 to be stabilized at 220V; the voltage stabilizing output is realized, the circuit is simple, the cost is low, the volume is small, and the use is convenient.
As shown in fig. 1, the second end of the primary winding of the transformer GR1 is connected to the positive electrode of the battery BAT1 and both the first end and the third end are connected to the voltage control circuit 100;
the VCC end, the C1 end and the C2 end of the pulse width modulation chip IC1 are connected with the positive electrode of the storage battery BAT1, the GND end is grounded, and the negative electrode of the storage battery BAT1 is also grounded; the working requirement of the pulse width modulation chip IC1 is met;
the first end and the second end of the secondary coil of the transformer GR1 are a live wire output end and a zero wire output end of 220V alternating current of an energy storage inverter power supply, and are connected with external electric equipment; for providing a power supply for an external consumer.
As shown in fig. 1, the voltage control circuit 100 includes a first fet Q3, a second fet Q4, a third fet Q5, a fourth fet Q6, and a first transistor Q1 and a second transistor Q2;
the sources of the first field effect tube Q3, the second field effect tube Q4, the third field effect tube Q5 and the fourth field effect tube Q6 are all grounded;
the drains of the first field effect tube Q3 and the second field effect tube Q4 are connected with the first end of the primary coil of the transformer GR1; the drains of the third field effect tube Q5 and the fourth field effect tube Q6 are connected with the third end of the primary coil of the transformer GR1;
the grid electrode of the first field effect transistor Q3 is connected with a first resistor R12, the grid electrode of the second field effect transistor Q4 is connected with a second resistor R15, the other end of the first resistor R12 and the other end of the second resistor R15 are both connected with the emitter electrode of the first triode Q1, the collector electrode of the first triode Q1 is grounded, and the base electrode of the first triode Q1 is connected with the E1 end of the pulse width modulation chip IC 1; the base electrode of the first triode Q1 is also connected with a third resistor R8, and the other end of the third resistor R8 is grounded;
the grid electrode of the three-field-effect transistor is connected with a fourth resistor R13, the grid electrode of the fourth field-effect transistor Q6 is connected with a fifth resistor R14, the other end of the fourth resistor R13 and the other end of the fifth resistor R14 are both connected with the emitter electrode of a second triode Q2, the collector electrode of the second triode Q2 is grounded, and the base electrode of the second triode Q2 is connected with the E2 end of the pulse width modulation chip IC 1; the base electrode of the second triode Q2 is also connected with a sixth resistor R9, and the other end of the sixth resistor R9 is grounded; the voltage control circuit 100 generates a pulse signal by starting oscillation, and the transformer GR1 is operated and stabilized.
As shown in fig. 1, the voltage feedback circuit 200 includes a seventh resistor R11, an eighth resistor R5, a diode D1, and an adjustable resistor WR1;
the seventh resistor R11 is connected with the first end of the secondary coil of the transformer GR1, the other end of the seventh resistor R11 is connected with the positive electrode of the diode D1 and the eighth resistor R5, and the other end of the eighth resistor R5 is grounded; the cathode of the diode D1 is connected with the second end of the adjustable resistor WR1, the diode D1 is used for rectification, the cathode is also connected with a sixth capacitor C5 and used for filtering after rectification, the first end of the adjustable resistor WR1 is connected with the +In1 end of the pulse width modulation chip IC1, and the third end of the adjustable resistor WR1 is grounded, wherein the adjustable resistor WR1 is used for adjusting the feedback voltage output to the pulse width modulation chip IC1, so that the alternating voltage of the first end and the second end of the secondary coil of the transformer GR1 is adjusted, and the regulated voltage value is realized; the circuit is simple and the cost is low.
As shown IN fig. 1, the 5Vref end and the COut end of the pulse width modulation chip IC1 are connected IN parallel and are also connected with a first capacitor C3 and a second capacitor C2, the positive electrode of the first capacitor C3 and the positive electrode of the second capacitor C2 are both connected with the 5Vref end of the pulse width modulation chip IC1, the negative electrode of the first capacitor C3 is grounded, the negative electrode of the second capacitor C2 is connected with a ninth resistor R2 and is also connected with the DTime end of the pulse width modulation chip IC1, and the other end of the ninth resistor R2 is connected with the +in2 end of the pulse width modulation chip IC1 and grounded;
the 5Vref end of the pulse width modulation chip IC1 is also connected with a tenth resistor R3 and an eleventh resistor R4, the other end of the tenth resistor R3 is connected with the-IN 1 end of the pulse width modulation chip IC1, and the other end of the eleventh resistor R4 is connected with the-IN 2 end of the pulse width modulation chip IC 1; a third capacitor C6 is connected IN parallel with the PWN end and the-IN 2 end of the pulse width modulation chip IC1, and a fourth capacitor C7 is connected IN parallel with the PWM end and the-IN 1 end;
the other end of the eleventh resistor R4 is connected with a twelfth resistor R6, and the other end of the twelfth resistor R6 is grounded;
the Cr end of the pulse width modulation chip is connected with a fifth capacitor C1, the Rr end of the pulse width modulation chip is connected with a thirteenth resistor R1, and the other end of the fifth capacitor C1 and the other end of the thirteenth resistor R13 are grounded; to meet the operating requirements of the pulse width modulation chip IC 1.
As shown in figure 1 of the drawings, a switch K1 is connected in series between the positive electrode of the storage battery BAT1 and the VCC end and the C1 end of the pulse width modulation chip IC1 as well as between the C2 end and the second end of the primary coil of the transformer GR1; so as to control the energy storage inversion power supply to invert or shut down.
As shown in fig. 1, model TL494 of pulse width modulation chip IC 1; small volume, convenient use and low cost.
As shown in fig. 1, the power supply further comprises a voltmeter or a voltage display module (not shown in the figure), wherein the voltmeter is connected in parallel with the live wire output end and the zero wire output end of the 220V alternating current of the energy storage inverter power supply; the power supply is used for displaying output voltage to know the working condition of the energy storage inverter power supply.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (8)
1. An energy storage inverter power supply comprises a pulse width modulation chip, a voltage control circuit and a transformer; the device is characterized in that the pulse width modulation chip and the transformer are both connected with a storage battery, and the voltage control circuit is respectively connected with the pulse width modulation chip and the transformer; the voltage feedback circuit is respectively connected with the pulse width modulation chip and the transformer;
the voltage control circuit and the transformer are matched to invert the 12V direct current of the storage battery into 220V alternating current; the pulse width modulation chip outputs a pulse signal with a certain duty ratio to control the voltage control circuit to be matched with the transformer for inversion; the voltage feedback circuit feeds back the output voltage of the transformer to the pulse width modulation chip, and the pulse width modulation chip adjusts the duty ratio of the pulse signal according to the output voltage of the transformer so as to control the output voltage of the transformer to be stabilized at 220V.
2. The energy storage inverter of claim 1, wherein a second end of the primary coil of the transformer is connected to a positive pole of the battery and both a first end and a third end are connected to the voltage control circuit;
the VCC end, the C1 end and the C2 end of the pulse width modulation chip are connected with the positive electrode of the storage battery, the GND end is grounded, and the negative electrode of the storage battery is also grounded;
and the first end and the second end of the secondary coil of the transformer are the live wire output end and the zero wire output end of the 220V alternating current of the energy storage inverter power supply, and are connected with external electric equipment.
3. The energy storage inverter of claim 2, wherein the voltage control circuit comprises a first fet, a second fet, a third fet, a fourth fet, and a first and second transistor;
the sources of the first field effect transistor, the second field effect transistor, the third field effect transistor and the fourth field effect transistor are all grounded;
the drains of the first field effect tube and the second field effect tube are connected with the first end of the primary coil of the transformer; the drains of the third field effect transistor and the fourth field effect transistor are connected with the third end of the primary coil of the transformer;
the grid electrode of the first field effect transistor is connected with a first resistor, the grid electrode of the second field effect transistor is connected with a second resistor, the other end of the first resistor and the other end of the second resistor are both connected with the emitter electrode of the first triode, the collector electrode of the first triode is grounded, and the base electrode of the first triode is connected with the E1 end of the pulse width modulation chip; the base electrode of the first triode is also connected with a third resistor, and the other end of the third resistor is grounded;
the grid electrode of the three field effect transistors is connected with a fourth resistor, the grid electrode of the fourth field effect transistor is connected with a fifth resistor, the other end of the fourth resistor and the other end of the fifth resistor are both connected with the emitter electrode of the second triode, the collector electrode of the second triode is grounded, and the base electrode of the second triode is connected with the E2 end of the pulse width modulation chip; the base electrode of the second triode is also connected with a sixth resistor, and the other end of the sixth resistor is grounded.
4. The energy storage inverter of claim 1, wherein the voltage feedback circuit comprises a seventh resistor, an eighth resistor, and a diode, and an adjustable resistor;
the seventh resistor is connected with the first end of the secondary coil of the transformer, the other end of the seventh resistor is connected with the anode of the diode and the eighth resistor, and the other end of the eighth resistor is grounded; the negative electrode of the diode is connected with the second end of the adjustable resistor, the first end of the adjustable resistor is connected with the +In1 end of the pulse width modulation chip, and the third end of the adjustable resistor is grounded.
5. The energy storage inverter power supply according to claim 1, wherein a 5Vref end and a COut end of the pulse width modulation chip are connected IN parallel and are also connected with a first capacitor and a second capacitor, the positive electrode of the first capacitor and the positive electrode of the second capacitor are both connected with the 5Vref end of the pulse width modulation chip, the negative electrode of the first capacitor is grounded, the negative electrode of the second capacitor is connected with a ninth resistor and is also connected with a DTime end of the pulse width modulation chip, and the other end of the ninth resistor is connected with a +In2 end of the pulse width modulation chip and is grounded;
the 5Vref end of the pulse width modulation chip is also connected with a tenth resistor and an eleventh resistor, the other end of the tenth resistor is connected with the-IN 1 end of the pulse width modulation chip, and the other end of the eleventh resistor is connected with the-IN 2 end of the pulse width modulation chip; a third capacitor is connected IN parallel with the PWN end and the-IN 2 end of the pulse width modulation chip, and a fourth capacitor is connected IN parallel with the PWM end and the-IN 1 end;
the other end of the eleventh resistor is connected with a twelfth resistor, and the other end of the twelfth resistor is grounded.
6. The energy storage inverter of claim 1, wherein a switch is connected in series between the positive electrode of the battery and the VCC terminal and the C1 terminal and the C2 terminal of the pulse width modulation chip, and the second terminal of the primary coil of the transformer.
7. The energy storage inverter of claim 1, wherein the pulse width modulation chip is model TL494.
8. The energy storage inverter of claim 1, further comprising a voltmeter connected in parallel with the hot and neutral outputs of the 220V ac power of the energy storage inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221744049.4U CN219247492U (en) | 2022-07-06 | 2022-07-06 | Energy storage inverter power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221744049.4U CN219247492U (en) | 2022-07-06 | 2022-07-06 | Energy storage inverter power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219247492U true CN219247492U (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221744049.4U Active CN219247492U (en) | 2022-07-06 | 2022-07-06 | Energy storage inverter power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219247492U (en) |
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2022
- 2022-07-06 CN CN202221744049.4U patent/CN219247492U/en active Active
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