A surge circuit and antenna electrically controlled controller

Abstract

This invention provides a surge circuit and an antenna electrical regulator controller. The key technical feature is that the surge circuit includes an electronic switch module, an energy storage module, a variable resistor module, and a switching power supply module. The input terminals of the variable resistor module and the electronic switch module are connected to an external voltage input terminal. One end of the energy storage module is connected to the switching power supply module, and its other end is grounded. The output terminals of the electronic switch module and the variable resistor module are respectively connected to the energy storage module. The energy storage module is used to delay the power-on of the switching power supply module, and the variable resistor module is used to output a constant current charging current. By setting the variable resistor module, the surge current is unaffected by the input voltage, output voltage, and energy storage module, resulting in a stable power-on time and a stable power-on current.

Description

Technical Field

[0001] This invention relates to the field of surge circuit design, and more particularly to a surge circuit and an antenna electrical control controller. Background Technology

[0002] The existing standard antenna interface 3.0 protocol ESC controller has the problem of power-on surge current during the power-on process of switching power supply. The power-on current is unstable, resulting in unstable power-on time and long power-on time. Summary of the Invention

[0003] The primary objective of this invention is to provide a surge circuit with stable power-on current.

[0004] Another object of the present invention is to provide an antenna electrical control controller employing the above-described surge circuit.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A surge circuit includes an electronic switch module, an energy storage module, a variable resistor module, and a switching power supply module. The input terminals of the variable resistor module and the electronic switch module are connected to an external voltage input terminal. One end of the energy storage module is connected to the switching power supply module, and its other end is grounded. The output terminals of the electronic switch module and the variable resistor module are respectively connected to the energy storage module. The energy storage module is used to delay the power-on of the switching power supply module, and the variable resistor module is used to output a constant current charging current.

[0007] Further configuration: The surge circuit also includes a delay module, which is connected between the external voltage input terminal and the electronic switch module. The delay module is used to delay the turn-on of the electronic switch module.

[0008] Further configuration: The surge circuit also includes a voltage regulator module, which is connected between the external voltage input terminal and the delay module, and is used to provide a reference voltage for the delay module.

[0009] Further configuration: The voltage regulator module includes a first resistor and a Zener diode connected in series. The positive terminal of the Zener diode is grounded. The two ends of the first resistor are respectively connected to the external voltage input terminal and the negative terminal of the Zener diode. The output terminal of the voltage regulator module is connected between the Zener diode and the first resistor.

[0010] Further configuration: The delay module includes a second resistor and a first capacitor. The second resistor is connected to the output terminal of the voltage regulator module. One end of the first capacitor is grounded, and the other end is connected to the second resistor. The output terminal of the delay module is connected between the second resistor and the first capacitor.

[0011] Further configuration: The variable resistor module includes a third resistor, a fourth resistor, a first transistor, and a second transistor. The emitter of the first transistor is connected to the input terminal of the variable resistor module. The two ends of the third resistor are respectively connected to the emitter and base of the first transistor. The collector of the first transistor is connected to the fourth resistor. The end of the fourth resistor furthest from the first transistor is grounded. The base of the second transistor is connected between the collector of the first transistor and the fourth resistor. The emitter of the second transistor is connected between the base of the first transistor and the third resistor. The collector of the second transistor is connected to the output terminal of the variable resistor module. The first transistor and the second transistor are PNP transistors.

[0012] Further configuration: The electronic switch module includes a MOSFET, a fifth resistor, a sixth resistor, and a third transistor. The base of the third transistor is connected to the output terminal of the delay module, its collector is connected to the sixth resistor, and its emitter is grounded. The fifth resistor is connected between the external voltage input terminal and the sixth resistor. The source of the MOSFET is connected between the fifth resistor and the external voltage input terminal, its drain is connected between the variable resistor module and the energy storage module, and its gate is connected between the fifth resistor and the sixth resistor. The MOSFET is a P-channel MOSFET, and the third transistor is an NPN transistor.

[0013] Further configuration: The switching power supply module includes a voltage regulator chip and a third capacitor. One end of the third capacitor is grounded, and the other end is electrically connected to the enable terminal of the voltage regulator chip. The voltage input terminal of the voltage regulator chip is connected to the output terminal of the variable resistor module.

[0014] The present invention also provides an antenna electrical adjustment controller, including the surge circuit described above.

[0015] Compared with the prior art, the solution of the present invention has the following advantages:

[0016] 1. In the surge circuit of the present invention, by setting a variable resistor module, the surge current is not affected by the input voltage, output voltage and energy storage module, the power-on time is stable, and the effect of stable power-on current is achieved.

[0017] 2. In the antenna power-adjustable controller of the present invention, by adopting the above-mentioned surge circuit, the antenna power-adjustable controller can meet the AISG3.0 power-on surge current requirements during power-on, the power-on current is stable, and the working stability is improved.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 This is a frame diagram of a surge circuit according to an embodiment of the present invention;

[0021] Figure 2 This is a circuit diagram of a surge circuit according to one embodiment of the present invention;

[0022] Figure 3 This is a flowchart illustrating the operation of a surge circuit according to an embodiment of the present invention. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figure 1 and Figure 2 As shown, this invention provides an antenna electrical adjustment controller, including a surge circuit. The surge circuit includes an electronic switch module 1, a delay module 2, a voltage regulator module 3, an energy storage module 4, a variable resistor module 5, and a switching power supply module 6. The input terminals of the voltage regulator module 3, the variable resistor module 5, and the electronic switch module 1 are connected to an external voltage input terminal. One end of the energy storage module 4 is connected to the switching power supply module 6, and its other end is grounded. The output terminals of the electronic switch module 1 and the variable resistor module 5 are respectively connected to the energy storage module 4. The voltage regulator module 3 is connected to the external voltage input terminal. The delay module 2 is connected between the voltage regulator module 3 and the electronic switch module 1. The energy storage module 4 is used to delay the power-on of the electronic switch module 1. The variable resistor module 5 is used to output a constant current charging current. The delay module 2 is used to delay the turn-on of the electronic switch module 1. The voltage regulator module 3 is used to provide a reference voltage for the delay module 2.

[0025] In this embodiment, the voltage regulator module 3 includes a first resistor R1 and a Zener diode D1 connected in series. The positive terminal of the Zener diode D1 is grounded. The two ends of the first resistor R1 are connected to the external voltage input terminal and the negative terminal of the Zener diode D1, respectively. The output terminal of the voltage regulator module 3 is connected between the Zener diode D1 and the first resistor R1.

[0026] 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 voltage regulator module 3. One end of the first capacitor C1 is grounded, and the other end is connected to the second resistor R2. The output terminal of the delay module 2 is connected between the second resistor R2 and the first capacitor C1. The delay module 2 serves to delay power-on, allowing the electronic switch module 1 to conduct only after a certain power-on delay.

[0027] The variable resistor module 5 includes a third resistor R3, a fourth resistor R4, a first transistor Q1, and a second transistor Q2. The emitter of the first transistor Q1 is connected to the input terminal of the variable resistor module 5. The two ends of the third resistor R3 are connected to the emitter and base of the first transistor Q1, respectively. The collector of the first transistor Q1 is connected to the fourth resistor R4. The end of the fourth resistor R4 furthest from the first transistor Q1 is grounded. The base of the second transistor Q2 is connected between the collector of the first transistor Q1 and the fourth resistor R4. The emitter of the second transistor Q2 is connected between the base of the first transistor Q1 and the third resistor R3. The collector of the second transistor Q2 is connected to the output terminal of the variable resistor module 5. The first transistor Q1 and the second transistor Q2 are PNP transistors.

[0028] The electronic switch module 1 includes a MOSFET Q3, a fifth resistor R5, a sixth resistor R6, and a third transistor Q4. The base of the third transistor Q4 is connected to the output terminal of the delay module 2, its collector is connected to the sixth resistor R6, and its emitter is grounded. The fifth resistor R5 is connected between the external voltage input terminal and the sixth resistor R6. The source of the MOSFET Q3 is connected between the fifth resistor R5 and the external voltage input terminal. The drain of the MOSFET Q3 is connected between the variable resistor module 5 and the energy storage module 4. The gate of the MOSFET Q3 is connected between the fifth resistor R5 and the sixth resistor R6. In this embodiment, the MOSFET Q3 is a P-channel MOSFET, and the third transistor Q4 is an NPN transistor.

[0029] In this embodiment, the energy storage module 4 includes a second capacitor C2, one end of which is grounded and the other end is connected to the drain of the MOSFET Q3. Its typical value is 1-10000μF.

[0030] In this embodiment, the switching power supply module 6 includes a voltage regulator chip 61 and a third capacitor C3. One end of the third capacitor C3 is grounded, and the other end is connected to the enable terminal of the voltage regulator chip 61. The voltage input terminal of the voltage regulator chip 61 is connected to the output terminal of the variable resistor module 5. In this embodiment, the third capacitor C3 is a switching power supply delay enable capacitor. The switching power supply module 6 only starts outputting when the delay time of the switching power supply module 6 is greater than the delay time of the delay module 2.

[0031] The switching power supply module 6 also includes a fourth capacitor C4. One end of the fourth capacitor C4 is grounded, and the other end is connected to the soft-start terminal of the voltage regulator chip 61. It is used to set the soft-start time for the switching power supply module 6. The soft-start time is determined by the magnitude of the surge current.

[0032] Combination Figure 3 As shown, the working process of the surge circuit is illustrated. When the power is applied, the second capacitor C2 is first charged. When the second capacitor C2 is fully charged, the MOSFET Q3 is turned on, the switching power supply is enabled, and the startup is finally completed.

[0033] In this embodiment, the MOSFET Q3 is turned on only after the second capacitor C2 is fully charged. Since the external input voltage passes through the Zener diode D1, the conduction of the MOSFET Q3 is not affected by the input voltage and the dispersion coefficient of the MOSFET Q3 itself. The conduction time of the MOSFET Q3 is relatively stable, and it can be turned on in a maximum of 200ms after power-on.

[0034] The above description is only a partial embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A surge circuit, characterized in that: The system includes an electronic switch module, an energy storage module, a variable resistor module, and a switching power supply module. The input terminals of the variable resistor module and the electronic switch module are connected to an external voltage input terminal. One end of the energy storage module is connected to the switching power supply module, and its other end is grounded. The output terminals of the electronic switch module and the variable resistor module are respectively connected to the energy storage module. The energy storage module is used to delay the power-on of the switching power supply module, and the variable resistor module is used to output a constant current charging current. The system also includes a delay module connected between the external voltage input terminal and the electronic switch module, which delays the on-state of the electronic switch module. The delay module includes a second resistor and a first capacitor. The second resistor is connected to the output terminal of the voltage regulator module. One end of the first capacitor is grounded, and the other end is connected to the second resistor. The output terminal of the delay module is connected between the second resistor and the first capacitor. The voltage regulator module is connected between the external voltage input terminal and the delay module, and the voltage regulator module is used to provide a reference voltage for the delay module. The energy storage module includes a second capacitor; The switching power supply module includes a voltage regulator chip and a third capacitor. One end of the third capacitor is grounded, and the other end is electrically connected to the enable terminal of the voltage regulator chip. The voltage input terminal of the voltage regulator chip is connected to the output terminal of the variable resistor module. The variable resistor module includes a third resistor, a fourth resistor, a first transistor, and a second transistor. The emitter of the first transistor is connected to the input terminal of the variable resistor module. The two ends of the third resistor are connected to the emitter and base of the first transistor, respectively. The collector of the first transistor is connected to the fourth resistor. The end of the fourth resistor furthest from the first transistor is grounded. The base of the second transistor is connected between the collector of the first transistor and the fourth resistor. The emitter of the second transistor is connected between the base of the first transistor and the third resistor. The collector of the second transistor is connected to the output terminal of the variable resistor module. The first and second transistors are PNP transistors.

2. The surge circuit according to claim 1, characterized in that: The voltage regulator module includes a first resistor and a Zener diode connected in series. The positive terminal of the Zener diode is grounded. The two ends of the first resistor are connected to an external voltage input terminal and the negative terminal of the Zener diode, respectively. The output terminal of the voltage regulator module is connected between the Zener diode and the first resistor.

3. The surge circuit according to claim 1, characterized in that: The electronic switch module includes a MOSFET, a fifth resistor, a sixth resistor, and a third transistor. The base of the third transistor is connected to the output terminal of the delay module, its collector is connected to the sixth resistor, and its emitter is grounded. The fifth resistor is connected between the external voltage input terminal and the sixth resistor. The source of the MOSFET is connected between the fifth resistor and the external voltage input terminal, its drain is connected between the variable resistor module and the energy storage module, and its gate is connected between the fifth resistor and the sixth resistor. The MOSFET is a P-channel MOSFET, and the third transistor is an NPN transistor.

4. An antenna electrically adjustable controller, characterized in that: Includes the surge circuit as described in any one of claims 1 to 3.

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