CN209982352U - Voltage output control system realized based on adjustable self-excited multivibrator - Google Patents
Voltage output control system realized based on adjustable self-excited multivibrator Download PDFInfo
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- CN209982352U CN209982352U CN201921227137.5U CN201921227137U CN209982352U CN 209982352 U CN209982352 U CN 209982352U CN 201921227137 U CN201921227137 U CN 201921227137U CN 209982352 U CN209982352 U CN 209982352U
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Abstract
The embodiment of the utility model discloses voltage output control system based on adjustable self-excited multivibrator realizes, include: the power frequency transformer module is used for generating power frequency voltage, the self-excited multivibrator module is used for generating difference frequency voltage according to the input power frequency voltage, and the practical voltage transmission module is used for outputting the difference frequency voltage to the electric equipment; wherein the power frequency transformer module, the self-excited multivibrator module and the utility voltage transmission module are electrically connected. Adopt voltage output control system based on adjustable self-excited multivibrator realizes, when the advantage lies in power frequency voltage peak value, output current is the maximum value, the peak value can do work promptly, can realize accurate voltage control through adjusting self-excited multivibrator simultaneously, simple structure, and no switching loss to circuit electric energy work efficiency and power frequency transformer's utilization ratio has been improved.
Description
Technical Field
The embodiment of the utility model provides a relate to circuit voltage control field, concretely relates to voltage output control system based on adjustable self excitation multivibrator realizes.
Background
At present, the voltage in the transmission process of an electrified circuit is usually 220V or 110V, however, the power supply voltage of a circuit board of some small household appliances (such as electric appliances such as a soymilk machine, a juicer, and a sound device) in daily life is usually lower, and therefore, a voltage reduction device is usually required to adjust the voltage. The industrial frequency transformer is also called a low-frequency transformer, and can convert 220V or 110V industrial frequency high voltage into industrial frequency low voltage for supplying power to a circuit board of a small household appliance. However, the power consumption of the current industrial frequency transformer, especially the high-power industrial frequency transformer, in the standby state is very large.
Therefore, there is a need for a voltage output control system based on a tunable free-running multivibrator with simple structure and low power consumption.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a voltage output control system based on adjustable self-excited multivibrator realizes to solve the unable acting of power frequency transformer voltage peak value that exists among the prior art, make circuit work efficiency low, the consumption is higher, and the structure is complicated, and the security is relatively poor, leads to the user to use the relatively poor problem of experience.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the embodiment of the utility model provides a pair of voltage output control system based on adjustable self-excited multivibrator realizes, include: the power frequency transformer module is used for generating power frequency voltage, the self-excited multivibrator module is used for generating difference frequency voltage according to the input power frequency voltage, and the practical voltage transmission module is used for outputting the difference frequency voltage to the electric equipment; the power frequency transformer module, the self-excited multivibrator module and the utility voltage transmission module are electrically connected.
Further, the self-excited multivibrator module includes: a first capacitor device, a second capacitor device, a resistor device for protecting the capacitor, and a self-excited multivibrator coil; wherein the first capacitive device, the second capacitive device, the resistive device for protecting capacitance, and the free-running multivibrator coil are electrically connected.
Further, the first capacitive device and the second capacitive device are connected in parallel by a live line.
Further, the first capacitive device and the second capacitive device are connected in series by a live line.
Further, the output end of the power frequency transformer module is connected with the input end of the self-excited multivibrator module through an electrified circuit; the output end of the self-excited multivibrator module is connected with the input end of the practical voltage transmission module through an electrified circuit.
Further, the voltage output control system implemented based on the tunable self-excited multivibrator further includes: the isolated switch power supply module is used for controlling the circuit in the voltage output control system to be switched on and switched off; and the isolated switch power supply module is connected with the power frequency transformer module through an electrified circuit.
Further, the resistance device and the first or second capacitance device are connected in parallel through a power line.
Further, the output end of the self-excited multivibrator coil is connected with electric equipment through a power line.
Adopt voltage output control system based on adjustable self-excited multivibrator realizes, when the advantage lies in power frequency voltage peak value, output current is the maximum value, the peak value can do work promptly, can realize accurate voltage control through adjusting self-excited multivibrator simultaneously, simple structure, and no switching loss to circuit electric energy work efficiency and power frequency transformer's utilization ratio has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic diagram of a voltage output control system implemented based on an adjustable self-excited multivibrator according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a self-excited multivibrator in a voltage output control system implemented based on an adjustable self-excited multivibrator according to an embodiment of the present invention.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.
This application utilizes power frequency transformer 101 and self-excited multivibrator 102 to constitute the series/parallel resonance circuit, utilizes power frequency (being former frequently) and self-excited multivibrator 102 to produce the difference frequency to realize the output of practical voltage, this kind of mode simple structure, the security is high, and does not have switching loss, can realize accurate voltage control, thereby has improved circuit electric energy utilization efficiency.
Based on the utility model discloses a voltage output control system based on adjustable self-excited multivibrator realizes, carry out the detailed description to its embodiment below. As shown in fig. 1, it is a schematic diagram of a voltage output control system implemented based on an adjustable self-excited multivibrator according to an embodiment of the present invention, and the specific implementation process includes the following components: the power frequency transformer module 101 is used for generating power frequency voltage, the self-excited multivibrator module 102 is used for generating difference frequency voltage according to the input power frequency voltage, and the practical voltage transmission module 103 is used for outputting the difference frequency voltage to electric equipment. Wherein the line frequency transformer module 101, the self-excited multivibrator module 102 and the utility voltage transmission module 103 are electrically connected. Specifically, voltage output control system based on adjustable self-excited multivibrator realization in this application, as shown in fig. 1, power frequency transformer module 101's output with self-excited multivibrator module 102's input passes through the circular telegram circuit and connects, self-excited multivibrator module 102's output with utility voltage transmission module 103's input passes through the circular telegram circuit and connects, utility voltage transmission module can be connected with the consumer. Of course, the output end of the self-excited multivibrator coil can also be directly connected with electric equipment through an electrified circuit.
It should be noted that the power frequency generally refers to the frequency of the commercial power, such as: 50Hz or 60Hz, and the power frequency transformer module 101 is provided with a power frequency transformer which can change the voltage of the power frequency alternating current. In this application embodiment, power frequency transformer adopts the silicon steel sheet to make as magnetic core material, and power frequency transformer's operating frequency generally refers to 50HZ or 60 HZ's mains frequency, can convert 220V or 110V power frequency high pressure of input into power frequency low pressure, supplies the circuit board power supply of consumer 104 to use, consumer 104 can refer to soybean milk machine, smoke ventilator, stereo set etc.. The free-running multivibrator module 102 is provided with a resistance-capacitance coupled rectangular wave generator (i.e., multivibrator). The rectangular wave generator can utilize depth positive feedback to enable two electronic devices to be alternately switched on and off through resistance-capacitance coupling, and therefore the oscillator can generate square wave output by self excitation.
As shown in fig. 2, it is a schematic structural diagram of a self-excited multivibrator in a voltage output control system implemented based on an adjustable self-excited multivibrator according to an embodiment of the present invention. The free running multivibrator module includes an RLC serial/parallel circuit therein. In an embodiment of the present application, the self-excited multivibrator module includes: a first capacitive device C1, a second capacitive device C2, a resistive device R for protecting the capacitance, and a free running multivibrator coil, i.e., the RLC series/parallel circuit includes: a first capacitive device C1, a second capacitive device C2, a resistive device R for protecting the capacitance, and a free running multivibrator coil. Wherein the first capacitive device C1, the second capacitive device C2, the resistive device R for protecting capacitance, and the self-excited multivibrator coil are electrically connected.
In the embodiment of the application, the voltage output control system is realized based on the adjustable self-excited multivibrator. Fig. 2 is a schematic structural diagram of a self-excited multivibrator in a voltage output control system implemented based on a tunable self-excited multivibrator according to an embodiment of the present application. The capacitance of the two capacitor devices C1 and C2 in fig. 2 can be adjusted according to the actual output power. When the self-excited multivibrator module is adjusted, the first capacitor device C1 and the second capacitor device C2 may be connected in parallel through a power line, and at this time, the parallel resonance impedance is large and the current is small; the first capacitor device C1 and the second capacitor device C2 may be connected in series by a conductive line, and in this case, the series resonant impedance is small and the current is large.
Specifically, the self-excited multivibrator coil and the transformer coil form a complete loop circuit, at the moment of circuit connection, no current passes through the circuit because the capacitor device is not charged, after half period of electric energy supplement, the capacitor device end stores electric energy, the capacitor device starts to discharge in the next half period, at the moment, the capacitor device discharges to the zero line end through the self-excited multivibrator coil, and one period is finished. In the circuit, the voltage waveform diagram is generally in a sine wave form, and the current stored in the capacitor device leads the voltage 1/4 period, so that the current can be the largest when the voltage is at the peak value, and the power can be applied when the voltage is at the peak value, thereby greatly improving the utilization efficiency of the power frequency transformer module. The circuit has the greatest characteristics of simple structure, reliable work and long service life.
In addition, in the embodiment of the application, the voltage output control system based on the realization of the adjustable self-excited multivibrator can further comprise an isolated switch power supply module for controlling the circuit in the voltage output control system to be opened and closed, and the isolated switch power supply module is connected with the power frequency transformer module through an electrified circuit.
In an actual implementation process, in order to protect the first capacitive device or the second capacitive device, the voltage output control system implemented based on the tunable self-excited multivibrator may further include a resistor device, where the resistor device may be connected in parallel with the first capacitive device through a power line, or connected in parallel with the second capacitive device through a power line, so as to protect the first capacitive device or the second capacitive device.
Adopt voltage output control system based on adjustable self-excited multivibrator realizes, when the advantage lies in power frequency voltage peak value, output current is the maximum value, the peak value can do work promptly, can realize accurate voltage control through adjusting self-excited multivibrator simultaneously, simple structure, and no switching loss to circuit electric energy work efficiency and power frequency transformer's utilization ratio has been improved.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned only are embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the present invention should be included in the scope of the present invention. The above description is only for the preferred embodiment of the present application and is not intended to limit the technical scope of the present application, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present application are within the technical scope of the present application.
Claims (8)
1. A voltage output control system based on an adjustable self-excited multivibrator, comprising: the power frequency transformer module is used for generating power frequency voltage, the self-excited multivibrator module is used for generating difference frequency voltage according to the input power frequency voltage, and the practical voltage transmission module is used for outputting the difference frequency voltage to the electric equipment; wherein the power frequency transformer module, the self-excited multivibrator module and the utility voltage transmission module are electrically connected.
2. The tunable free-running multivibrator-based voltage output control system according to claim 1, wherein the free-running multivibrator module comprises: a first capacitor device, a second capacitor device, a resistor device for protecting the capacitor, and a self-excited multivibrator coil; wherein the first capacitive device, the second capacitive device, the resistive device for protecting capacitance, and the free-running multivibrator coil are electrically connected.
3. The tunable free-running multivibrator-based voltage output control system according to claim 1, further comprising: the isolated switch power supply module is used for controlling the circuit in the voltage output control system to be switched on and switched off; and the isolated switch power supply module is connected with the power frequency transformer module through an electrified circuit.
4. The tunable free-running multivibrator-based voltage output control system according to claim 2, wherein the resistance device is connected in parallel to the first or second capacitive device through a power line.
5. The tunable free-running multivibrator-based voltage output control system according to claim 2, wherein the first capacitive device and the second capacitive device are connected in parallel through a power line.
6. The tunable free-running multivibrator-based voltage output control system according to claim 1, wherein the output terminal of the line frequency transformer module is connected to the input terminal of the free-running multivibrator module via a power line; the output end of the self-excited multivibrator module is connected with the input end of the practical voltage transmission module through an electrified circuit.
7. The tunable free-running multivibrator-based voltage output control system according to claim 2, wherein the first capacitive device and the second capacitive device are connected in series through a power line.
8. The tunable free-running multivibrator-based voltage output control system according to claim 2, wherein the output terminal of the free-running multivibrator coil is connected to the electric device through a power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921227137.5U CN209982352U (en) | 2019-07-31 | 2019-07-31 | Voltage output control system realized based on adjustable self-excited multivibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921227137.5U CN209982352U (en) | 2019-07-31 | 2019-07-31 | Voltage output control system realized based on adjustable self-excited multivibrator |
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| CN209982352U true CN209982352U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921227137.5U Expired - Fee Related CN209982352U (en) | 2019-07-31 | 2019-07-31 | Voltage output control system realized based on adjustable self-excited multivibrator |
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| CN (1) | CN209982352U (en) |
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- 2019-07-31 CN CN201921227137.5U patent/CN209982352U/en not_active Expired - Fee Related
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