CN110661412A - Surge circuit and antenna electrically-tuning controller - Google Patents
Surge circuit and antenna electrically-tuning controller Download PDFInfo
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- CN110661412A CN110661412A CN201910989503.9A CN201910989503A CN110661412A CN 110661412 A CN110661412 A CN 110661412A CN 201910989503 A CN201910989503 A CN 201910989503A CN 110661412 A CN110661412 A CN 110661412A
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- module
- resistor
- triode
- voltage stabilizing
- surge circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
Abstract
The invention provides a surge circuit and antenna electrically-tuning controller, which adopts the technical scheme that the surge circuit comprises an electronic switch module, an energy storage module, a variable resistance module and a switch power supply module, wherein the input ends of the variable resistance module and the electronic switch module are connected with an external voltage input end, one end of the energy storage module is connected with the switch power supply module, the other end of the energy storage module is grounded, the output ends of the electronic switch module and the variable resistance module are respectively connected with the energy storage module, the energy storage module is used for enabling the switch power supply module to be powered on in a delayed mode, and the variable resistance module is used for outputting constant-current charging current. By arranging the variable resistance module, the electrifying surge current is not influenced by the input voltage, the output voltage and the energy storage module, the electrifying time is stable, and the effect of stabilizing the electrifying current is realized.
Description
Technical Field
The invention relates to the field of surge circuit design, in particular to a surge circuit and antenna electrically tuning controller.
Background
The existing standard antenna interface 3.0 protocol electric tuning controller has the problem of power-on surge current in the power-on process of a switching power supply, and the power-on current is unstable, so that the power-on time is unstable and longer.
Disclosure of Invention
The invention aims to provide a surge circuit with stable power-on current.
Another object of the present invention is to provide an antenna electrically tuning controller using the above surge circuit.
In order to achieve the purpose, the invention provides the following technical scheme:
a surge circuit comprises an electronic switch module, an energy storage module, a variable resistance module and a switch power supply module, wherein the input ends of the variable resistance module and the electronic switch module are connected with an external voltage input end, one end of the energy storage module is connected with the switch power supply module, the other end of the energy storage module is grounded, the output ends of the electronic switch module and the variable resistance module are respectively connected with the energy storage module, the energy storage module is used for enabling the switch power supply module to be powered on in a delayed mode, and the variable resistance module is used for outputting constant-current charging current.
Further setting: the surge circuit further comprises a delay module, the delay module is connected between the external voltage input end and the electronic switch module, and the delay module is used for delaying the conduction of the electronic switch module.
Further setting: the surge circuit further comprises a voltage stabilizing module, the voltage stabilizing module is connected between the external voltage input end and the time delay module, and the voltage stabilizing module is used for providing reference voltage for the time delay module.
Further setting: the voltage stabilizing module comprises a first resistor and a voltage stabilizing diode which are connected in series, the anode of the voltage stabilizing diode is grounded, two ends of the first resistor are respectively connected with an external voltage input end and the cathode of the voltage stabilizing diode, and the output end of the voltage stabilizing module is connected between the voltage stabilizing diode and the first resistor.
Further setting: the time delay module comprises a second resistor and a first capacitor, the second resistor is connected with the output end of the voltage stabilizing module, one end of the first capacitor is grounded, the other end of the first capacitor is connected with the second resistor, and the output end of the time delay module is connected between the second resistor and the first capacitor.
Further setting: the variable resistance module comprises a third resistor, a fourth resistor, a first triode and a second triode, wherein a collector of the first triode is connected with an input end of the variable resistance module, two ends of the third resistor are respectively connected with a collector and a base of the first triode, an emitter of the first triode is connected with the fourth resistor, one end of the fourth resistor, far away from the first triode, is grounded, a base of the second triode is connected between the emitter of the first triode and the fourth resistor, a collector of the second triode is connected between the base of the first triode and the third resistor, an emitter of the second triode is connected with an output end of the variable resistance module, and the first triode and the second triode are PNP type triodes.
Further setting: the electronic switch module comprises an MOS (metal oxide semiconductor) tube, a fifth resistor, a sixth resistor and a third triode, wherein the base of the third triode is connected with the output end of the delay module, the collector of the third triode is connected with the sixth resistor, the emitter of the third triode is grounded, the fifth resistor is connected with an external voltage input end and between the sixth resistor, the source of the MOS tube is connected between the fifth resistor and the external voltage input end, the drain of the MOS tube is connected between the variable resistor module and the energy storage module, the grid of the MOS tube is connected between the fifth resistor and the sixth resistor, the MOS tube is a P-channel MOS tube, and the third triode is an NPN-type triode.
Further setting: the switching power supply module comprises a voltage stabilizing chip and a third capacitor, one end of the third capacitor is grounded, the other end of the third capacitor is electrically connected with an enabling end of the voltage stabilizing chip, and a voltage input end of the voltage stabilizing chip is connected with an output end of the variable resistance module.
The invention also provides an antenna electrically-tuning controller which comprises the surge circuit.
Compared with the prior art, the scheme of the invention has the following advantages:
1. in the surge circuit, the variable resistance module is arranged, so that the power-on surge current is not influenced by the input voltage, the output voltage and the energy storage module, the power-on time is stable, and the effect of stabilizing the power-on current is realized.
2. In the antenna electrically-tunable controller, the surge circuit is adopted, so that the antenna electrically-tunable controller can meet the requirement of AISG3.0 power-on surge current in the power-on process, the power-on current is stable, and the working stability is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a surge circuit in accordance with one embodiment of the present invention;
FIG. 2 is a circuit schematic of a surge circuit in accordance with one embodiment of the present invention;
fig. 3 is a flow chart of the operation of the surge circuit in one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As shown in fig. 1 and 2, the present invention provides an antenna electrically tuning controller, which includes a surge circuit, wherein the surge circuit includes an electronic switch module 1, a delay module 2, a voltage stabilizing module 3, an energy storage module 4, a variable resistance module 5 and a switch power supply module 6, and input ends of the voltage stabilizing module 3, the variable resistance module 5 and the electronic switch module 1 are connected to an external voltage input end. One end of the energy storage module 4 is connected with the switching power supply module 6, the other end of the energy storage module is grounded, the output ends of the electronic switch module 1 and the variable resistance module 5 are respectively connected with the energy storage module 4, the voltage stabilizing module 3 is connected with an external voltage input end, and the delay module 2 is connected between the voltage stabilizing module 3 and the electronic switch module 1. The energy storage module 4 is used for enabling the electronic switch module 1 to be powered on in a delayed mode, the variable resistance module 5 is used for outputting constant-current charging current, the delay module 2 is used for delaying the electronic switch module 1 to be conducted, and the voltage stabilizing module 3 is used for providing reference voltage for the delay module 2.
In this embodiment, the voltage regulation module 3 includes a first resistor R1 and a zener diode D1 connected in series, the anode of the zener diode D1 is grounded, two ends of the first resistor R1 are respectively connected to an external voltage input terminal and the cathode of the zener diode D1, and the output terminal of the voltage regulation module 3 is connected between the zener diode D1 and the first resistor R1.
The delay module 2 includes a second resistor R2 and a first capacitor C1, the third capacitor C3 is connected to the output terminal of the regulator module 3, one end of the first capacitor C1 is grounded, the other end of the first capacitor C1 is connected to the second resistor R2, and the output terminal of the delay module 2 is connected between the second resistor R2 and the first capacitor C1. The time delay module 2 plays a role in time delay, and the electronic switch module 1 is switched on after the power-on time delay is carried out for a period of time.
The variable resistance module 5 includes a third resistor R3, a fourth resistor R4, a first transistor Q1 and a second transistor Q2, the collector of the first triode Q1 is connected with the input end of the variable resistance module 5, two ends of the third resistor R3 are respectively connected with the collector and the base of the first triode Q1, the emitter of the first triode Q1 is connected with a fourth resistor R4, one end of the fourth resistor R4 far away from the first triode Q1 is grounded, the base of the second transistor Q2 is connected between the emitter of the first transistor Q1 and the fourth resistor R4, the collector of the second transistor Q2 is connected between the base of the first transistor Q1 and the third resistor R3, the emitter of the second transistor Q2 is connected to the output terminal of the variable resistance module 5, and the first transistor Q1 and the second transistor Q2 are PNP transistors.
The electronic switch module 1 comprises a MOS transistor Q3, a fifth resistor R5, a sixth resistor R6 and a third triode Q4, wherein the base of the third triode Q4 is connected with the output end of the delay module 2, the collector of the third triode Q4 is connected with the sixth resistor R6, the emitter of the third triode Q4 is grounded, the fifth resistor R5 is connected between the external voltage input end and the sixth resistor R6, the source of the MOS transistor Q3 is connected between the fifth resistor R5 and the external voltage input end, the drain of the MOS transistor Q3 is connected between the variable resistor module 5 and the energy storage module 4, and the gate of the MOS transistor Q3 is connected between the fifth resistor R5 and the sixth resistor R6. In this embodiment, the MOS transistor Q3 is a P-channel MOS transistor Q3, and the third transistor Q4 is an NPN transistor.
In the present embodiment, the energy storage module 4 includes a second capacitor C2, one end of the second capacitor C2 is grounded, and the other end is connected to the drain of the MOS transistor Q3, which is typically 1-10000 μ F.
In this embodiment, the switching power supply module 6 includes a voltage regulator chip 61, and further includes a third capacitor C3, one end of the third capacitor C3 is grounded, the other end of the third capacitor C3 is connected to an enable end of the voltage regulator chip 61, and a voltage input end of the voltage regulator chip 61 is connected to an output end of the variable resistance module 5. In this embodiment, the third capacitor C3 is a delay enable capacitor of the switching power supply, and the switching power supply module 6 starts outputting only when the delay time of the switching power supply module 6 is greater than the delay time of the delay module 2.
The switching power supply module 6 further includes a fourth capacitor C4, one end of the fourth capacitor C4 is grounded, and the other end of the fourth capacitor C4 is connected to the soft start end of the voltage stabilizing chip 61, and is used for setting the soft start time of the switching power supply module 6, where the soft start time is determined by the magnitude of the inrush current.
Referring to fig. 3, a working flow of the surge circuit is shown, when the power is turned on, the second capacitor C2 is charged first, and when the second capacitor C2 is fully charged, the MOS transistor Q3 is turned on, the switching power supply is enabled, and finally the start is completed.
In this embodiment, after the second capacitor C2 is fully charged, the MOS transistor Q3 is turned on, and since the external input voltage passes through the zener diode D1, the turn-on of the MOS transistor Q3 is not affected by the input voltage and the dispersion coefficient of the MOS transistor Q3, the turn-on time of the MOS transistor Q3 is stable, and the turn-on can be performed for at most 200ms after power-on.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A surge circuit is characterized in that: the energy storage module is used for enabling the switch power supply module to be powered on in a delayed mode, and the variable resistance module is used for outputting constant-current charging current.
2. The surge circuit of claim 1, wherein: the electronic switch module is connected between the external voltage input end and the electronic switch module, and the delay module is used for delaying the conduction of the electronic switch module.
3. The surge circuit of claim 2, wherein: the voltage stabilizing module is connected between the external voltage input end and the time delay module and used for providing reference voltage for the time delay module.
4. A surge circuit according to claim 3, wherein: the voltage stabilizing module comprises a first resistor and a voltage stabilizing diode which are connected in series, the anode of the voltage stabilizing diode is grounded, two ends of the first resistor are respectively connected with an external voltage input end and the cathode of the voltage stabilizing diode, and the output end of the voltage stabilizing module is connected between the voltage stabilizing diode and the first resistor.
5. The surge circuit of claim 4, wherein: the time delay module comprises a second resistor and a first capacitor, the second resistor is connected with the output end of the voltage stabilizing module, one end of the first capacitor is grounded, the other end of the first capacitor is connected with the second resistor, and the output end of the time delay module is connected between the second resistor and the first capacitor.
6. The surge circuit of claim 5, wherein: the variable resistance module comprises a third resistor, a fourth resistor, a first triode and a second triode, wherein a collector of the first triode is connected with an input end of the variable resistance module, two ends of the third resistor are respectively connected with a collector and a base of the first triode, an emitter of the first triode is connected with the fourth resistor, one end of the fourth resistor, far away from the first triode, is grounded, a base of the second triode is connected between the emitter of the first triode and the fourth resistor, a collector of the second triode is connected between the base of the first triode and the third resistor, an emitter of the second triode is connected with an output end of the variable resistance module, and the first triode and the second triode are PNP type triodes.
7. The surge circuit of claim 5, wherein: the electronic switch module comprises an MOS (metal oxide semiconductor) tube, a fifth resistor, a sixth resistor and a third triode, wherein the base of the third triode is connected with the output end of the delay module, the collector of the third triode is connected with the sixth resistor, the emitter of the third triode is grounded, the fifth resistor is connected with an external voltage input end and between the sixth resistor, the source of the MOS tube is connected between the fifth resistor and the external voltage input end, the drain of the MOS tube is connected between the variable resistor module and the energy storage module, the grid of the MOS tube is connected between the fifth resistor and the sixth resistor, the MOS tube is a P-channel MOS tube, and the third triode is an NPN-type triode.
8. The surge circuit of claim 1, wherein: the switching power supply module comprises a voltage stabilizing chip and a third capacitor, one end of the third capacitor is grounded, the other end of the third capacitor is electrically connected with an enabling end of the voltage stabilizing chip, and a voltage input end of the voltage stabilizing chip is connected with an output end of the variable resistance module.
9. An antenna electrically tuning controller is characterized in that: comprising a surge circuit as claimed in any of the claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989503.9A CN110661412A (en) | 2019-10-17 | 2019-10-17 | Surge circuit and antenna electrically-tuning controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989503.9A CN110661412A (en) | 2019-10-17 | 2019-10-17 | Surge circuit and antenna electrically-tuning controller |
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| Publication Number | Publication Date |
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| CN110661412A true CN110661412A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910989503.9A Pending CN110661412A (en) | 2019-10-17 | 2019-10-17 | Surge circuit and antenna electrically-tuning controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769111A (en) * | 2020-12-24 | 2021-05-07 | 京信通信技术(广州)有限公司 | Surge circuit, surge suppression method, electric tuning controller and antenna |
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2019
- 2019-10-17 CN CN201910989503.9A patent/CN110661412A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769111A (en) * | 2020-12-24 | 2021-05-07 | 京信通信技术(广州)有限公司 | Surge circuit, surge suppression method, electric tuning controller and antenna |
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Effective date of registration: 20200116 Address after: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Applicant after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Address before: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Applicant before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Applicant before: COMBA TELECOM SYSTEMS (CHINA) Ltd. Applicant before: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Applicant before: TIANJIN COMBA TELECOM SYSTEMS Ltd. |
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Inventor after: Lai Junmao Inventor after: Ma Zefeng Inventor after: Pan Peifeng Inventor after: Hu Bang Inventor before: Lai Junmao Inventor before: Ma Zefeng Inventor before: Pan Peifeng Inventor before: Hu Bang |
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Effective date of registration: 20230804 Address after: 510730, No. 6, Jin Lu, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Applicant after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Applicant after: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Address before: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Applicant before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. |