CN214227942U

CN214227942U - Power supply system for full-band new-architecture SDR interference system

Info

Publication number: CN214227942U
Application number: CN202120255885.5U
Authority: CN
Inventors: 周伟; 纪永亮
Original assignee: Beijing Jing An Landun Science & Technology Development Co ltd
Current assignee: BEIJING JING AN LANDUN SCIENCE & TECHNOLOGY DEVELOPMENT CO.,LTD.; Chengdu kangsiwei Intelligent Energy Technology Co.,Ltd.
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-09-17
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a full frequency channel new construction SDR power supply system for interference system, including AC/DC unit, charge the control unit, energy storage battery and DC/DC voltage stabilizing unit, the output of AC/DC unit passes through the input electric connection of wire and DC/DC voltage stabilizing unit, the output of charge the control unit passes through wire electric connection with energy storage battery's input, energy storage battery's output passes through wire electric connection with DC/DC voltage stabilizing unit's input, it has anti-reverse diode to establish ties between energy storage battery's the anodal output and the anodal input of DC/DC voltage stabilizing unit, AC/DC unit and charge the control unit's input all with commercial power electric connection. The utility model discloses, through setting up DC/DC voltage stabilization unit, can improve supply voltage's stability by a wide margin, realize 28 1V's direct current output, avoid because the battery power difference leads to the different problem of output voltage, improve the stability of SDR interference system during operation.

Description

Power supply system for full-band new-architecture SDR interference system

Technical Field

The utility model relates to a power supply system technical field for SDR interference system. In particular to a power supply system for a full-band new-architecture SDR interference system.

Background

After a radio interference system goes through a DDS technical stage, an SDR (software defined radio) technical stage is entered at present, the requirement on power supply quality is not high in the DDS stage, after the SDR stage is adopted, higher requirements are provided for power supply, including constant voltage, improved power consumption, seamless switching between battery power supply and mains supply and the like.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that a switch is reliable is provided, can keep the full frequency channel new construction SDR electrical power generating system for interference system of supply voltage precision.

In order to solve the technical problem, the utility model provides a following technical scheme: the power supply system for the full-band new-architecture SDR interference system comprises an AC/DC unit, a charging control unit, an energy storage battery and a DC/DC voltage stabilizing unit, wherein the output end of the AC/DC unit is electrically connected with the input end of the DC/DC voltage stabilizing unit through a wire, the output end of the charging control unit is electrically connected with the input end of the energy storage battery through a wire, the output end of the energy storage battery is electrically connected with the input end of the DC/DC voltage stabilizing unit through a wire, an anti-reverse diode is connected in series between the positive output end of the energy storage battery and the positive input end of the DC/DC voltage stabilizing unit, and the input ends of the AC/DC unit and the charging control unit are electrically connected with a mains supply.

In the power supply system for the full-band new-architecture SDR interference system, the output end of the DC/DC voltage stabilizing unit is electrically connected with a quick-plug connector through a wire, and the output end of the DC/DC voltage stabilizing unit is connected with a display unit; and the auxiliary output end of the DC/DC voltage stabilizing unit is electrically connected with a heat radiation fan through a wire.

In the power supply system for the full-band new-architecture SDR interference system, the DC/DC voltage stabilizing unit comprises a filtering module, a PWM voltage regulating module, an auxiliary power supply module, a heat dissipation module, an indication module and a low-voltage protection module; the output end of the filtering module is respectively connected with the input end of the PWM voltage regulating module, the input end of the auxiliary power supply module and the input end of the low-voltage protection module, and the indicating module is respectively connected with the output end of the energy storage battery and the output end of the AC/DC unit.

The filter module comprises a common-mode inductor formed by L1-A and L1-B, a capacitor C1, a capacitor C2, a capacitor C3, a protective tube F1 and an anti-reflection diode D1; a capacitor C1 is connected in parallel between the positive input end and the negative input end of the common-mode inductor, the protective tube F1 and the anti-reverse diode D1 are connected in series and are connected in series between the positive input end of the common-mode inductor, the current direction of the anti-reverse diode D1 is the same as the input current direction, the capacitor C2 and the capacitor C3 are connected in series and are connected in parallel between the positive output end and the negative output end of the common-mode inductor, the positive output end of the common-mode inductor is connected in series with a switch, two ends of the switch are connected in parallel with a resistor R1, the positive output end of the energy storage battery is connected with the anode of the anti-reverse diode D1, the positive output end of the AC/DC unit is connected with the cathode of the anti-reverse diode D1, the positive output end of the common-mode inductor is connected with a pole capacitor C4 after passing through the switch, the anode of the pole capacitor C4 is connected with the rear end of the switch, and the cathode of the common-mode capacitor C4 is connected with the negative output end of the common-mode inductor, and the output end of the common mode inductor is connected with a PWM voltage regulating module.

In the power supply system for the full-band new-architecture SDR interference system, the PWM voltage regulation module includes an inductor L3-B, a diode D2, an N-channel fet Q1, an inductor L2-B, N-channel fet Q49, an active capacitor C5, an N-channel fet Q2, an active capacitor C6, a PWM chip U3, and a PWM chip U1; the first end of the inductor L3-B is connected with the anode of the active capacitor C4, the second end of the inductor L3-B is respectively and electrically connected with the anode of the diode D2 and the drain of the N-channel field effect transistor Q49, the source of the N-channel field effect transistor Q49 is connected with the cathode of the active capacitor C4, the grid of the diode is connected with one pin of the PWM chip U3, the cathode of the diode D2 is respectively connected with the anode of the electrode capacitor C5 and the drain of the N-channel field effect transistor Q1, the cathode of the polar capacitor C5 is connected with the source electrode of an N-channel field effect transistor Q49, the source electrode of the N-channel field effect transistor Q1 is respectively connected with one end of an inductor L2-B and the drain electrode of the N-channel field effect transistor Q2, the source electrode of the N-channel field effect transistor Q2 is connected with the cathode of the polar capacitor C5, the grid of the inductor is connected with one pin of a PWM chip U1, the other end of the inductor L2-B is connected with the anode of an active capacitor C6, and the cathode of the active capacitor C6 is connected with the source of an N-channel field effect transistor Q2 and grounded.

In the above power supply system for the full-band new-architecture SDR interference system, an auxiliary power supply module and a low-voltage protection module are connected to an anode of the active capacitor C4, where the auxiliary power supply module includes a flyback transformer T3-a, a switch SW1, a chip U11, a capacitor C102, a capacitor C7, a capacitor C8, a diode D3, a diode D4, a diode D5, an N-channel fet Q15, and a resistor R166; the low-voltage protection module comprises a resistor R314, a resistor R381 and a comparator U5-A, wherein a first end of an input winding of the flyback transformer T3-A is connected with an anode of a polar capacitor C4 through a switch SW1, a first end of an input winding of the flyback transformer T3-A is connected with a first end of a resistor R166, a second end of the resistor R166 is connected with a cathode of a diode D5, an anode of the diode D5 is connected with a second end of an input winding of the flyback transformer T3-A, two ends of the resistor R166 are connected with a capacitor C102 in parallel, a cathode of a diode D5 is connected with a drain electrode of an N-channel field effect tube Q15, a source electrode of the N-channel field effect tube Q15 is grounded, and a grid electrode of the N-channel field effect tube Q15 is connected with a seventh pin of a chip U11; the positive output end of a first output winding of the flyback transformer T3-A is connected with the anode of a diode D3, the cathode of the diode D3 is connected with one end of a capacitor C7, and the other end of the capacitor C7 is grounded and connected with the negative electrode of the first output winding of the transformer T3-A; the anode of the second output winding of the transformer T3-A is connected with the anode of a diode D4, the cathode of the diode D4 is connected with one end of a capacitor C8, and the other end of the capacitor C8 is grounded and connected with the cathode of the second output winding of the transformer T3-A; the first end of the resistor R314 is connected with the anode of the active capacitor C4, the second end of the resistor R314 is respectively connected with the first end of the resistor R381 and the inverted input end of the comparator U5-A, the second end of the resistor R381 is grounded, the non-inverting input end of the comparator U5-A is connected with a reference voltage, and the output end of the comparator U5-A is connected with over-discharge protection.

In the above power supply system for the full-band new-architecture SDR interference system, the cathode of the diode D4 is connected with a heat dissipation module, the heat dissipation module includes an N-channel fet Q3 and a connector CON1, the drain of the N-channel fet Q3 is connected with the cathode of the diode D4, the source of the N-channel fet Q3 is connected with one end of the connector CON1, and the other end of the connector CON1 is grounded.

The power supply system for the full-band new-architecture SDR interference system comprises an indication module, an input end block and a battery capacity indication module, wherein the indication module comprises a DC input indication module and a battery capacity indication module; the battery power level indicating module comprises three indicating members, the three indicating members are identical in structure and are connected with the output end of a battery in parallel, one indicating member comprises a resistor R2, a resistor R3 and a comparator U2-A, the first end of the resistor R2 is connected with the anode of the energy storage battery, the second end of the resistor R2 is connected with the first section of the resistor R3 and the inverting input end of the comparator U2-A respectively, the second end of the resistor R3 is grounded, the non-inverting input end of the comparator U2-A is connected with a reference voltage, the output end of the comparator U2-A is connected with a light-emitting diode, and the non-inverting input ends of the comparators of the three indicating members are connected with different reference voltages; the DC input indication module comprises a resistor R8, a resistor R9 and a comparator U7-A, wherein the resistor R8 and the resistor R9 are connected in series and in parallel at the input end of the DC/DC voltage stabilizing unit.

The technical scheme of the utility model following profitable technological effect has been obtained:

1. the utility model discloses, through setting up DC/DC voltage stabilization unit, can improve supply voltage's stability by a wide margin, realize 28 1V's direct current output, avoid because the battery power difference leads to the different problem of output voltage, improve the stability of SDR interference system during operation.

2. The utility model discloses, through setting up energy storage battery and AC/DC unit, can realize the uninterrupted power supply to SDR interference system, under mains supply, convert the commercial power into 27V-45V direct current through AC/DC unit to input DC/DC voltage stabilizing unit is to the power supply of SDR interference system, when the commercial power has a power failure, can directly supply power through energy storage battery, realize zero millisecond switching, and can not arouse the power supply to be interrupted, lead to SDR interference system to restart, thereby improve interference effect and reliability.

Drawings

FIG. 1 is a schematic diagram of a power supply system of the present invention;

FIG. 2 is a circuit diagram of the DC/DC voltage regulator unit of the present invention;

the reference numbers in the figures denote: 1-AC/DC unit; 2-a charge control unit; 3-an energy storage battery; a 4-DC/DC voltage stabilizing unit; 5-a heat dissipation fan; 6-a display unit; 7-a connector; 8-a filtering module; 9-PWM voltage regulation module; 10-an auxiliary power supply module; 11-a heat dissipation module; 12-an indication module; 13-low voltage protection module.

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.

Referring to fig. 1, the present invention provides a technical solution: the power supply system for the full-band new-architecture SDR interference system comprises an AC/DC unit 1, a charging control unit 2, an energy storage battery 3 and a DC/DC voltage stabilizing unit 4, wherein the output end of the AC/DC unit 1 is electrically connected with the input end of the DC/DC voltage stabilizing unit 4 through a lead, the output end of the charging control unit 2 is electrically connected with the input end of the energy storage battery 3 through a lead, the output end of the energy storage battery 3 is electrically connected with the input end of the DC/DC voltage stabilizing unit 4 through a lead, an anti-reverse diode is connected in series between the positive output end of the energy storage battery 3 and the positive input end of the DC/DC voltage stabilizing unit 4, the input ends of the AC/DC unit 1 and the charging control unit 2 are electrically connected with a mains supply, and the output end of the DC/DC voltage stabilizing unit 4 is electrically connected with a quick plug connector 7 through a lead, the output end of the DC/DC voltage stabilizing unit 4 is connected with a display unit 6; the auxiliary output end of the DC/DC voltage stabilizing unit 4 is electrically connected with a cooling fan 5 through a wire, uninterrupted power supply to the SDR interference system can be realized by arranging the energy storage battery 3 and the AC/DC unit 1, under the power supply of commercial power, the commercial power is converted into 27V-45V direct current through the AC/DC unit 1, the DC/DC voltage stabilizing unit 4 is input to supply power to the SDR interference system, when the commercial power is cut off, the direct power supply can be realized through the energy storage battery 3, zero millisecond switching is realized, the power supply interruption can not be caused, and the restart of the SDR interference system is caused, so that the interference effect and the reliability are improved.

As shown in fig. 2, the DC/DC voltage stabilization unit 4 includes a filtering module 8, a PWM voltage regulation module 9, an auxiliary power supply module 10, a heat dissipation module 11, an indication module 12 and a low voltage protection module 13, an output end of the filtering module 8 is connected with an input end of the PWM voltage regulation module 9, an input end of the auxiliary power supply module 10 and an input end of the low voltage protection module 13, the indication module 12 is connected with an output end of the energy storage battery 3 and an output end of the AC/DC unit 1, and by setting the DC/DC voltage stabilization unit 4, the stability of the power supply voltage can be greatly improved, the direct current output of 28 ± 1V is realized, the problem that the output voltage is different due to different battery capacities is avoided, and the stability of the SDR interference system during operation is.

The filtering module 8 comprises a common-mode inductor formed by L1-A and L1-B, a capacitor C1, a capacitor C2, a capacitor C3, a protective tube F1 and an anti-reverse diode D1, a capacitor C1 is connected in parallel between the positive input end and the negative input end of the common-mode inductor, the protective tube F1 and the anti-reverse diode D1 are connected in series and in series with the positive input end of the common-mode inductor, the current direction of the anti-reverse diode D1 is the same as the input current direction, the capacitor C2 and the capacitor C3 are connected in series and in parallel between the positive output end and the negative output end of the common-mode inductor, a switch is connected in series at the positive output end of the common-mode inductor, a resistor R1 is connected in parallel at two ends of the switch, the positive output end of the energy storage battery 3 is connected with the anode of the anti-reverse diode D1, the positive output end of the AC/DC unit 1 is connected with the cathode of the anti-reverse diode D1, a positive output end of the common-mode inductor is connected with a capacitor C4 after passing through the switch, the anode of the polar capacitor C4 is connected with the rear end of the switch, the cathode of the polar capacitor C4 is connected with the cathode output end of the common-mode inductor, the output end of the common-mode inductor is connected with a PWM voltage regulating module 9, the PWM voltage regulating module 9 comprises an inductor L3-B, a diode D2, an N-channel field effect transistor Q1, an inductor L2-B, N-channel field effect transistor Q49, a polar capacitor C5, an N-channel field effect transistor Q2, a polar capacitor C6, a PWM chip U3 and a PWM chip U1, the first end of the inductor L3-B is connected with the anode of the polar capacitor C4, the second end of the inductor L3-B is respectively electrically connected with the anode of the diode D2 and the drain of the N-channel field effect transistor Q49, the source of the N-channel field effect transistor Q49 is connected with the cathode of the polar capacitor C4, the gate of the N-channel field effect transistor Q3 is connected with one pin of the PWM chip U3, the cathode 2 is respectively connected with the anode of the polar capacitor C5 and the drain field effect transistor Q1, the cathode of the active capacitor C5 is connected with the source of an N-channel field effect transistor Q49, the source of the N-channel field effect transistor Q1 is respectively connected with one end of an inductor L2-B and the drain of the N-channel field effect transistor Q2, the source of the N-channel field effect transistor Q4834 is connected with the cathode of the active capacitor C5, the gate of the N-channel field effect transistor Q2 is connected with one pin of a PWM chip U1, the other end of the inductor L2-B is connected with the anode of an active capacitor C6, the cathode of the active capacitor C6 is connected with the source of the N-channel field effect transistor Q2 and grounded, the anode of the active capacitor C4 is connected with an auxiliary power supply module 10 and a low-voltage protection module 13, the auxiliary power supply module 10 comprises a flyback transformer T3-A, a switch SW1, a chip U11, a capacitor C102, a capacitor C7, a capacitor C8, a diode D3, a diode D4, a diode D5, an N-channel field effect transistor Q15 and a resistor R166; the low-voltage protection module 13 comprises a resistor R314, a resistor R381 and a comparator U5-a, a first end of an input winding of the flyback transformer T3-a is connected with an anode of the pole-connected capacitor C4 through a switch SW1, a first end of an input winding of the flyback transformer T3-a is connected with a first end of a resistor R166, a second end of the resistor R166 is connected with a cathode of a diode D5, an anode of the diode D5 is connected with a second end of the input winding of the flyback transformer T3-a, two ends of the resistor R166 are connected with a capacitor C102 in parallel, a cathode of the diode D5 is connected with a drain of an N-channel field effect transistor Q15, a source of the N-channel field effect transistor Q15 is grounded, and a gate of the diode is connected with a seventh pin of the chip U11; the positive output end of a first output winding of the flyback transformer T3-A is connected with the anode of a diode D3, the cathode of the diode D3 is connected with one end of a capacitor C7, and the other end of the capacitor C7 is grounded and connected with the negative electrode of the first output winding of the transformer T3-A; the anode of the second output winding of the transformer T3-a is connected to the anode of a diode D4, the cathode of the diode D4 is connected to one end of a capacitor C8, the other end of the capacitor C8 is grounded and connected to the cathode of the second output winding of the transformer T3-a, the first end of the resistor R314 is connected to the anode of a capacitor C4 with poles, the second end of the resistor R314 is connected to the first end of a resistor R381 and the inverting input end of a comparator U5-a, respectively, the second end of the resistor R381 is grounded, the non-inverting input end of the comparator U5-a is connected to a reference voltage, the output end of the comparator U5-a is connected to an over-discharge protection, the cathode of the diode D4 is connected to a heat dissipation module 11, the heat dissipation module 11 includes an N-channel fet Q3 and a connector 7CON1, the drain of the N-channel fet Q3 is connected to the cathode of the diode D4, the source of the N-channel fet Q3 is connected to one end of the connector 7CON1, and the other end of the connector 7CON1 is grounded.

The indication module 12 comprises a DC input indication module and a battery capacity indication module, wherein an input end block of the DC input indication module is connected with the output end of the AC/DC unit 1, and the battery capacity indication module is connected with the output end of the energy storage battery 3; the battery power indicating module comprises three indicating members, the three indicating members are identical in structure and are connected with the output end of the battery in parallel, one indicating member comprises a resistor R2, a resistor R3 and a comparator U2-A, the first end of the resistor R2 is connected with the positive electrode of the energy storage battery 3, the second end of the resistor R2 is connected with the first section of the resistor R3 and the inverting input end of the comparator U2-A respectively, the second end of the resistor R3 is grounded, the non-inverting input end of the comparator U2-A is connected with a reference voltage, the output end of the comparator U2-A is connected with a light emitting diode, and the non-inverting input ends of the comparators of the three indicating members are connected with different reference voltages; the DC input indication module comprises a resistor R8, a resistor R9 and a comparator U7-A, wherein the resistor R8 and the resistor R9 are connected in series and in parallel at the input end of the DC/DC voltage stabilizing unit 4.

The working principle is as follows: when the device is used, the commercial power is used for supplying power to the AC/DC unit 1 and the charging control unit 2, the AC/DC unit 1 converts the commercial power into 27-45V direct current and inputs the direct current into the DC/DC voltage stabilizing unit 4, the DC/DC voltage stabilizing unit 4 stabilizes unstable direct current to 28V direct current for output, the SDR interference system is electrically connected with the DC/DC voltage stabilizing unit 4 through the quick plug connector 7 to supply power to the SDR interference system, and meanwhile, the charging control unit 2 charges or charges the energy storage battery 3 according to the state of the energy storage battery 3; when the commercial power is cut off, the energy storage battery 3 is seamlessly switched to supply power to the DC/DC voltage stabilizing unit 4, the DC/DC voltage stabilizing unit 4 is used for stabilizing the voltage and then supplying power to the DR interference system, and when the commercial power is recovered, the commercial power is seamlessly switched to supply power.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.

Claims

1. A power supply system for a full-band new-architecture SDR interference system comprises an AC/DC unit (1), a charging control unit (2), an energy storage battery (3) and a DC/DC voltage stabilizing unit (4), characterized in that the output end of the AC/DC unit (1) is electrically connected with the input end of the DC/DC voltage stabilizing unit (4) through a lead, the output end of the charging control unit (2) is electrically connected with the input end of the energy storage battery (3) through a lead, the output end of the energy storage battery (3) is electrically connected with the input end of the DC/DC voltage stabilizing unit (4) through a lead, an anti-reverse diode is connected in series between the positive output end of the energy storage battery (3) and the positive input end of the DC/DC voltage stabilizing unit (4), the input ends of the AC/DC unit (1) and the charging control unit (2) are electrically connected with the mains supply.

2. The power supply system for the full-band new-architecture SDR interference system of claim 1, wherein the output terminal of the DC/DC voltage stabilization unit (4) is electrically connected with a fast plug connector (7) through a wire, and the output terminal of the DC/DC voltage stabilization unit (4) is connected with a display unit (6); and the auxiliary output end of the DC/DC voltage stabilizing unit (4) is electrically connected with a heat radiation fan (5) through a lead.

3. The power supply system for the full-band new-architecture SDR interference system according to claim 1, characterized in that the DC/DC voltage-stabilizing unit (4) comprises a filtering module (8), a PWM voltage-regulating module (9), an auxiliary power supply module (10), a heat dissipation module (11), an indication module (12) and a low-voltage protection module (13);

the output end of the filtering module (8) is connected with the input end of the PWM voltage regulating module (9), the input end of the auxiliary power supply module (10) and the input end of the low-voltage protection module (13) respectively, and the indicating module (12) is connected with the output end of the energy storage battery (3) and the output end of the AC/DC unit (1) respectively.

4. The power supply system for the full-band new-architecture SDR interference system according to claim 3, characterized in that the filtering module (8) comprises a common-mode inductor composed of L1-A and L1-B, a capacitor C1, a capacitor C2, a capacitor C3, a fuse F1 and an anti-reverse diode D1;

a capacitor C1 is connected in parallel between the positive input end and the negative input end of the common-mode inductor, the protective tube F1 and the anti-reverse diode D1 are connected in series and are connected in series at the positive input end of the common-mode inductor, the current direction of the anti-reverse diode D1 is the same as the input current direction, the capacitor C2 and the capacitor C3 are connected in series and are connected in parallel between the positive output end and the negative output end of the common-mode inductor, a switch is connected in series at the positive output end of the common-mode inductor, and a resistor R1 is connected in parallel at two ends of the switch; the positive output end of energy storage battery (3) is connected with the positive pole of preventing diode D1, the positive output end of AC/DC unit (1) is connected with the negative pole of preventing diode D1, common mode inductance's positive output end is connected with polar capacitance C4 behind the switch, polar capacitance C4's positive pole is connected with the rear end of switch, and its negative pole is connected with common mode inductance's negative pole output end, common mode inductance's output is connected with PWM voltage regulating module (9).

5. The power supply system for the full-band new-architecture SDR interference system of claim 4, wherein the PWM voltage regulation module (9) comprises an inductor L3-B, a diode D2, an N-channel FET Q1, an inductor L2-B, N channel FET Q49, an active capacitor C5, an N-channel FET Q2, an active capacitor C6, a PWM chip U3 and a PWM chip U1;

the first end of the inductor L3-B is connected with the anode of the active capacitor C4, the second end of the inductor L3-B is respectively and electrically connected with the anode of the diode D2 and the drain of the N-channel field effect transistor Q49, the source of the N-channel field effect transistor Q49 is connected with the cathode of the active capacitor C4, the grid of the diode is connected with one pin of the PWM chip U3, the cathode of the diode D2 is respectively connected with the anode of the electrode capacitor C5 and the drain of the N-channel field effect transistor Q1, the cathode of the polar capacitor C5 is connected with the source electrode of an N-channel field effect transistor Q49, the source electrode of the N-channel field effect transistor Q1 is respectively connected with one end of an inductor L2-B and the drain electrode of the N-channel field effect transistor Q2, the source electrode of the N-channel field effect transistor Q2 is connected with the cathode of the polar capacitor C5, the grid of the inductor is connected with one pin of a PWM chip U1, the other end of the inductor L2-B is connected with the anode of an active capacitor C6, and the cathode of the active capacitor C6 is connected with the source of an N-channel field effect transistor Q2 and grounded.

6. The power supply system for the full-band new-architecture SDR interference system as claimed in claim 4, wherein an auxiliary power supply module (10) and a low voltage protection module (13) are connected to an anode of the polar capacitor C4, and the auxiliary power supply module (10) comprises a flyback transformer T3-A, a switch SW1, a chip U11, a capacitor C102, a capacitor C7, a capacitor C8, a diode D3, a diode D4, a diode D5, an N-channel FET Q15 and a resistor R166; the low-voltage protection module (13) comprises a resistor R314, a resistor R381 and a comparator U5-A;

a first end of an input winding of the flyback transformer T3-A is connected with an anode of a polar capacitor C4 through a switch SW1, a first end of an input winding of the flyback transformer T3-A is connected with a first end of a resistor R166, a second end of the resistor R166 is connected with a cathode of a diode D5, an anode of a diode D5 is connected with a second end of the input winding of the flyback transformer T3-A, two ends of the resistor R166 are connected with a capacitor C102 in parallel, a cathode of the diode D5 is connected with a drain electrode of an N-channel field effect transistor Q15, a source electrode of the N-channel field effect transistor Q15 is grounded, and a grid electrode of the N-channel field effect transistor Q15 is connected with a seventh pin of a chip U11; the positive output end of a first output winding of the flyback transformer T3-A is connected with the anode of a diode D3, the cathode of the diode D3 is connected with one end of a capacitor C7, and the other end of the capacitor C7 is grounded and connected with the negative electrode of the first output winding of the transformer T3-A; the anode of the second output winding of the transformer T3-A is connected with the anode of a diode D4, the cathode of the diode D4 is connected with one end of a capacitor C8, and the other end of the capacitor C8 is grounded and connected with the cathode of the second output winding of the transformer T3-A;

the first end of the resistor R314 is connected with the anode of the active capacitor C4, the second end of the resistor R314 is respectively connected with the first end of the resistor R381 and the inverted input end of the comparator U5-A, the second end of the resistor R381 is grounded, the non-inverting input end of the comparator U5-A is connected with a reference voltage, and the output end of the comparator U5-A is connected with over-discharge protection.

7. The power supply system for the full-band new-architecture SDR interference system of claim 6, wherein a heat sink module (11) is connected to a cathode of the diode D4, the heat sink module (11) comprises an N-channel FET Q3 and a connector (7) CON1, a drain of the N-channel FET Q3 is connected to a cathode of the diode D4, a source of the N-channel FET Q3 is connected to one end of the connector (7) CON1, and the other end of the connector (7) CON1 is grounded.

8. The power supply system for a full-band new-architecture SDR interference system according to claim 3, characterized in that the indication module (12) comprises a DC input indication module and a battery level indication module, wherein the input end block of the DC input indication module is connected with the output end of the AC/DC unit (1), and the battery level indication module is connected with the output end of the energy storage battery (3); the battery power indicating module comprises three indicating members, the three indicating members are identical in structure and are connected with the output end of a battery in parallel, one indicating member comprises a resistor R2, a resistor R3 and a comparator U2-A, a first end of the resistor R2 is connected with the positive electrode of an energy storage battery (3), a second end of the resistor R2 is connected with a first section of the resistor R3 and the inverting input end of the comparator U2-A respectively, a second end of the resistor R3 is grounded, the non-inverting input end of the comparator U2-A is connected with a reference voltage, the output end of the comparator U2-A is connected with a light emitting diode, and the non-inverting input ends of the comparators of the three indicating members are connected with different reference voltages; the DC input indication module comprises a resistor R8, a resistor R9 and a comparator U7-A, wherein the resistor R8 and the resistor R9 are connected in series and in parallel at the input end of the DC/DC voltage stabilizing unit (4).