A solid-state pulse relay

Abstract

The present invention discloses a solid-state pulse relay, which is composed of resistors R1 to R12, diodes D1 to D4, transistors V1 to V7, and field-effect transistors Q1 to Q2. The solid-state pulse relay uses diodes, transistors and resistors to perform waveform conversion, and can convert a sinusoidal wave signal of a certain frequency into a square wave signal output of the same frequency. The solid-state pulse relay provides 6 external ports. In the event of an emergency (such as a load failure or the control signal cannot be removed normally), the load can be disconnected by blocking the port and grounding it. After the control signal reaches a certain frequency, the output end of the solid-state pulse relay changes to a continuous conduction mode and can be used as a frequency-controlled relay. The solid-state pulse relay can be used for half-wave and full-bridge rectification. Compared with diode rectification, it has the characteristics of high power and low voltage loss, and is therefore suitable for rectification occasions with higher power.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and in particular to a solid-state pulse relay. Background Art

[0002] With the advancement of aviation, aerospace, electronics, and computer control technologies, sensors are increasingly being used in systems. The signals output by these sensors are mostly analog, requiring waveform transformation or A / D conversion to be recognized and used by controllers. Furthermore, with increasing system complexity, AC and DC power coexist in the same system, requiring AC / DC conversion within the same system. Currently, diodes or thyristors are primarily used for rectification. However, due to the voltage drop within a specific range, diode rectification generates high power at high currents, resulting in significant heat generation and impacting system operation. Relays, commonly used switching devices in systems, offer low on-resistance, low voltage drop, and minimal power consumption. However, conventional relays, as waveform transformation or rectification devices, require additional circuitry such as timing control or waveform transformation at the front end, increasing the complexity of the peripheral circuitry and hindering the modularization and simplicity of the system design. Summary of the Invention

[0003] The present invention provides a solid-state pulse relay which integrates a waveform conversion circuit and can be directly used in waveform conversion, rectification and other occasions, thereby solving the adaptability problem of the relay in specific occasions.

[0004] To solve the above problems, the present invention is achieved through the following technical solutions:

[0005] A solid-state pulse relay is composed of resistors R1 to R12, diodes D1 to D4, transistors V1 to V7, and field effect transistors Q1 to Q2; one end of the resistor R1, one end of the resistor R6, one end of the resistor R8, the cathode of the diode D1, and the collector of the transistor V2 are connected to form a bias power supply port 1 of the solid-state pulse relay; the other end of the resistor R1, one end of the resistor R2, the collector of the transistor V1, and the base of the transistor V2 are connected; the other end of the resistor R2, one end of the resistor R3, and the base of the transistor V1 are connected to form a bias power supply port 1 of the solid-state pulse relay. The control port 2 of the solid pulse relay is formed; the other end of the resistor R3, one end of the resistor R4, the emitter of the transistor V1, and the base of the transistor V3 are connected; the other end of the resistor R4, one end of the resistor R5, one end of the resistor R9, one end of the resistor R10, the positive electrode of the diode D4, the collector of the transistor V3, the emitter of the transistor V5, the emitter of the transistor V6, the source of the field effect transistor Q1, and the source of the field effect transistor Q2 are connected, and form the power ground port 3 of the solid pulse relay; the emitter of the transistor V2, the emitter of the transistor V3 The emitter of transistor V5 is connected to the emitter of transistor R5; the other end of resistor R5, the anode of diode D1, and the base of transistor V4 are connected to each other; the other end of resistor R6 is connected to the emitter of transistor V4; one end of resistor R7, the collector of transistor V4, and the collector of transistor V5 are connected to each other; the other end of resistor R7 is connected to the base of transistor V6; the other end of resistor R8, the anode of diode D2, and the collector of transistor V6 are connected to each other; the other end of resistor R9, the cathode of diode D2, the anode of diode D3, and the base of transistor V7 are connected to each other. The other end of the resistor R10 is connected to the collector of the transistor V7; one end of the resistor R11, one end of the resistor R12, the cathode of the diode D3, the cathode of the diode D4, and the emitter of the transistor V7 are connected, and form a blocking port 4 of the solid-state pulse relay; the other end of the resistor R11 is connected to the gate of the field-effect transistor Q1; the other end of the resistor R12 is connected to the gate of the field-effect transistor Q2; the drain of the field-effect transistor Q2 forms the first output port 5 of the solid-state pulse relay; the drain of the field-effect transistor Q1 forms the second output port 6 of the solid-state pulse relay.

[0006] A sine wave to square wave circuit is composed of a synchronous transformer and a pull-down resistor R; the bias power supply port 1 of the solid-state pulse relay is connected to the power supply VCC; the second output port 6 of the solid-state pulse relay is connected to the power supply VDD; the blocking port 4 of the solid-state pulse relay is suspended; the two ends of the input side of the synchronous transformer form a sine wave input terminal U INOne end of the output side of the first synchronous transformer is connected to the control port 2 of the first solid-state pulse relay; the other end of the output side of the first synchronous transformer is connected to the power ground port 3 of the first solid-state pulse relay and the power ground; one end of the pull-down resistor R is connected to the first output port 5 of the solid-state pulse relay, and forms a square wave output terminal U OUT , the other end of the pull-down resistor R is grounded.

[0007] A half-wave rectifier circuit comprises a solid-state pulse relay, a synchronous transformer, and a load and filter circuit; a bias power supply port 1 of the solid-state pulse relay is connected to a power supply VCC; a blocking port 4 of the solid-state pulse relay is suspended; one end of the input side of the synchronous transformer and a second output port 6 of the solid-state pulse relay are connected to one end of an AC power supply; the other end of the input side of the synchronous transformer is connected to one end of the load and filter circuit and the other end of the AC power supply; one end of the output side of the synchronous transformer is connected to a control port 2 of the solid-state pulse relay; the other end of the output side of the synchronous transformer is connected to a power ground port 3 of the solid-state pulse relay and a power ground; and a first output port 5 of the solid-state pulse relay is connected to the load and the other end of the filter circuit.

[0008] A full-bridge rectifier circuit is composed of four solid-state pulse relays, four synchronous transformers, and a load and filter circuit; the bias power supply ports 1 of the four solid-state pulse relays are all connected to the power supply VCC; the blocking ports 4 of the four solid-state pulse relays are all suspended; one end of the input side of the four synchronous transformers is simultaneously connected to one end of the AC power supply; the other end of the input side of the four synchronous transformers is simultaneously connected to the other end of the AC power supply; one end of the output side of the first synchronous transformer is connected to the control port 2 of the first solid-state pulse relay; the other end of the output side of the first synchronous transformer is connected to the power ground port 3 of the first solid-state pulse relay and the power ground; one end of the output side of the second synchronous transformer is connected to the control port 2 of the second solid-state pulse relay; the other end of the output side of the second synchronous transformer is connected to the power ground port 3 of the second solid-state pulse relay and the power ground; One end of the output side is connected to the control port 2 of the third solid-state pulse relay; the other end of the output side of the third synchronous transformer is connected to the power ground port 3 of the third solid-state pulse relay and the power ground; one end of the output side of the fourth synchronous transformer is connected to the control port 2 of the fourth solid-state pulse relay; the other end of the output side of the fourth synchronous transformer is connected to the power ground port 3 of the fourth solid-state pulse relay and the power ground; the first output port 5 of the first solid-state pulse relay is connected to the second output port 6 of the third solid-state pulse relay; the first output port 5 of the second solid-state pulse relay is connected to the second output port 6 of the fourth solid-state pulse relay; the second output port 6 of the first solid-state pulse relay and the second solid-state pulse relay is connected to one end of the load and the filter circuit; the first output port 5 of the third solid-state pulse relay and the fourth solid-state pulse relay is connected to one end of the load and the filter circuit.

[0009] A frequency-controlled relay comprises a solid-state pulse relay, a synchronous transformer, and a filter capacitor C; a bias power supply port 1 of the solid-state pulse relay is connected to a power supply VCC; a second output port 6 of the solid-state pulse relay is connected to a power supply VDD; one end of the input side of the synchronous transformer is connected to one end of an AC power supply, and the other end of the input side of the synchronous transformer is connected to the other end of the AC power supply; one end of the output side of the synchronous transformer is connected to a control port 2 of the solid-state pulse relay, and the other end of the output side of the synchronous transformer is connected to a power ground port 3 of the solid-state pulse relay and a power ground; one end of the filter capacitor C is connected to the power ground port 3 of the solid-state pulse relay, and the other end of the filter capacitor C is connected to a blocking port 4 of the solid-state pulse relay; and a first output port 5 of the solid-state pulse relay is connected to an external load.

[0010] Compared with the prior art, the solid-state pulse relay proposed in the present invention uses diodes, transistors and resistors for waveform conversion, which can convert a sinusoidal wave signal of a certain frequency into a square wave signal output of the same frequency. The solid-state pulse relay provides 6 external ports. When an emergency occurs (such as load failure or the control signal cannot be removed normally), the load can be disconnected by blocking the port and grounding it. After the control signal reaches a certain frequency, the output end of the solid-state pulse relay changes to a continuous conduction mode and can be used as a frequency-controlled relay. The solid-state pulse relay can be used for half-wave and full-bridge rectification. Compared with diode rectification, it has the characteristics of high power and low voltage loss, and is therefore suitable for rectification occasions with higher power. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a solid-state pulse relay.

[0012] Figure 2 This is a schematic diagram of a solid-state pulse relay used in a sine wave to square wave circuit.

[0013] Figure 3 This is a waveform diagram of the conversion of a sine wave signal into a square wave signal.

[0014] Figure 4 This is a schematic diagram of a solid-state pulse relay applied to a half-wave rectifier circuit.

[0015] Figure 5 This is a schematic diagram of a solid-state pulse relay applied to a full-bridge rectifier circuit.

[0016] Figure 6 This is a schematic diagram of a solid-state pulse relay being used in a control relay. DETAILED DESCRIPTION

[0017] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific examples.

[0018] See also Figure 1A solid-state pulse relay comprises resistors R1 to R12, diodes D1 to D4, transistors V1 to V7, and field-effect transistors Q1 to Q2. One end of resistor R1, one end of resistor R6, one end of resistor R8, the cathode of diode D1, and the collector of transistor V2 are connected to form the bias power supply port 1 of the solid-state pulse relay. The other end of resistor R1, one end of resistor R2, the collector of transistor V1, and the base of transistor V2 are connected to form the control port 2 of the solid-state pulse relay. The other end of resistor R3, one end of resistor R4, the emitter of transistor V1, and the base of transistor V3 are connected to form the control port 2 of the solid-state pulse relay. The other end of resistor R4, one end of resistor R5, one end of resistor R9, one end of resistor R10, the anode of diode D4, the collector of transistor V3, the emitter of transistor V5, the emitter of transistor V6, the source of field-effect transistor Q1, and the source of field-effect transistor Q2 are connected together, forming power ground port 3 of the solid-state pulse relay. The emitter of transistor V2, the emitter of transistor V3, and the base of transistor V5 are connected together. The other end of resistor R5 is connected to the anode of diode D1 and the base of transistor V4. The other end of resistor R6 is connected to the emitter of transistor V4. One end of resistor R7 is connected to the collector of transistor V4 and the collector of transistor V5. The other end of resistor R7 is connected to the base of transistor V6. The other end of resistor R8 is connected to the anode of diode D2 and the collector of transistor V6. The other end of resistor R9, the cathode of diode D2, the anode of diode D3, and the base of transistor V7 are connected. The other end of resistor R10 is connected to the collector of transistor V7. One end of resistor R11, one end of resistor R12, the cathode of diode D3, the cathode of diode D4, and the emitter of transistor V7 are connected to form a blocking port 4 of the solid-state pulse relay. The other end of resistor R11 is connected to the gate of field-effect transistor Q1. The other end of resistor R12 is connected to the gate of field-effect transistor Q2. The drain of field-effect transistor Q2 forms the first output port 5 of the solid-state pulse relay. The drain of field-effect transistor Q1 forms the second output port 6 of the solid-state pulse relay.

[0019] The above-mentioned solid-state pulse relay provides 6 external ports. This solid-state pulse relay has no polarity and can be used in AC and DC control situations. This solid-state pulse relay can convert a sine wave of a certain frequency into a square wave output, and can convert the sensor signal whose output signal is a sine wave so that the microprocessor can count the frequency of the sensor signal, etc. This solid-state pulse relay can be used for full-bridge rectification and half-wave rectification. Compared with diode rectification, this solid-state pulse relay rectification has the characteristics of low power consumption and low voltage loss, and is suitable for high-power rectification situations. After the control signal reaches a certain frequency, the output end of the solid-state pulse relay becomes continuously conductive, and it can be used as a frequency-controlled relay. This solid-state pulse relay has a blocking end. When the load fails or the control signal cannot be effectively removed, the load can be disconnected by controlling the blocking end to ground.

[0020] See also Figure 2 A sine wave to square wave circuit implemented based on the solid-state pulse relay comprises a synchronous transformer and a pull-down resistor R. The bias power supply port 1 of the solid-state pulse relay is connected to the power supply VCC. The second output port 6 of the solid-state pulse relay is connected to the power supply VDD. The blocking port 4 of the solid-state pulse relay is suspended. The two ends of the input side of the synchronous transformer form the sine wave input terminal U. IN One end of the output side of the first synchronous transformer is connected to the control port 2 of the first solid-state pulse relay. The other end of the output side of the first synchronous transformer is connected to the power ground port 3 of the first solid-state pulse relay and the power ground. One end of the pull-down resistor R is connected to the first output port 5 of the solid-state pulse relay to form a square wave output terminal U OUT , the other end of the pull-down resistor R is grounded.

[0021] The above sine wave to square wave circuit uses diodes, transistors and resistors to perform waveform conversion, which can convert a sine wave signal of a certain frequency into a square wave signal of the same frequency for output (such as Figure 3 As shown), the sensor signal whose output signal is a sine wave can be converted so that the microprocessor can perform frequency counting on the sensor signal, such as speed measurement.

[0022] See also Figure 4A half-wave rectifier circuit implemented based on the above-mentioned state pulse relay consists of a solid-state pulse relay, a synchronous transformer, and a load and filter circuit. The bias power supply port 1 of the solid-state pulse relay is connected to the power supply VCC. The blocking port 4 of the solid-state pulse relay is suspended. One end of the input side of the synchronous transformer and the second output port 6 of the solid-state pulse relay are connected to one end of the AC power supply. The other end of the input side of the synchronous transformer is connected to one end of the load and filter circuit and the other end of the AC power supply. One end of the output side of the synchronous transformer is connected to the control port 2 of the solid-state pulse relay. The other end of the output side of the synchronous transformer is connected to the power ground port 3 of the solid-state pulse relay and the power ground. The first output port 5 of the solid-state pulse relay is connected to the other end of the load and filter circuit.

[0023] The above half-wave rectifier circuit is connected to the load power supply through a synchronous transformer at the input end of the solid-state pulse relay to ensure that the output end of the solid-state pulse relay outputs a half-sine wave of the same frequency, realizing half-wave rectification.

[0024] See also Figure 5 A full-bridge rectifier circuit implemented based on the above-mentioned state pulse relay consists of 4 solid-state pulse relays, 4 synchronous transformers, and a load and filter circuit. The bias power supply port 1 of the 4 solid-state pulse relays is connected to the power supply VCC. The blocking port 4 of the 4 solid-state pulse relays is suspended. One end of the input side of the 4 synchronous transformers is simultaneously connected to one end of the AC power supply. The other end of the input side of the 4 synchronous transformers is simultaneously connected to the other end of the AC power supply. One end of the output side of the first synchronous transformer is connected to the control port 2 of the first solid-state pulse relay. The other end of the output side of the first synchronous transformer is connected to the power ground port 3 of the first solid-state pulse relay and the power ground. One end of the output side of the second synchronous transformer is connected to the control port 2 of the second solid-state pulse relay.

[0025] The other end of the output side of the second synchronous transformer is connected to the power ground port 3 of the second solid-state pulse relay and the power ground. One end of the output side of the third synchronous transformer is connected to the control port 2 of the third solid-state pulse relay. The other end of the output side of the third synchronous transformer is connected to the power ground port 3 of the third solid-state pulse relay and the power ground. One end of the output side of the fourth synchronous transformer is connected to the control port 2 of the fourth solid-state pulse relay. The other end of the output side of the fourth synchronous transformer is connected to the power ground port 3 of the fourth solid-state pulse relay and the power ground. The first output port 5 of the first solid-state pulse relay is connected to the second output port 6 of the third solid-state pulse relay. The first output port 5 of the second solid-state pulse relay is connected to the second output port 6 of the fourth solid-state pulse relay. The second output ports 6 of the first and second solid-state pulse relays are connected to one end of the load and filter circuit. The first output ports 5 of the third and fourth solid-state pulse relays are connected to one end of the load and filter circuit.

[0026] The above-mentioned full-bridge rectifier circuit is connected to the load power supply through a synchronous transformer at the input end of the solid-state pulse relay. One group of synchronous transformers uses the same-name end to access the control circuit, and the other group uses the opposite-name end to access the control circuit, ensuring that the relay output end outputs a half-sine wave of the same frequency to achieve full-bridge rectification.

[0027] See also Figure 6 A frequency-controlled relay based on the above-mentioned state pulse relay is composed of a solid-state pulse relay, a synchronous transformer, and a filter capacitor C. The bias power supply port 1 of the solid-state pulse relay is connected to the power supply VCC. The second output port 6 of the solid-state pulse relay is connected to the power supply VDD. One end of the input side of the synchronous transformer is connected to one end of the AC power supply, and the other end of the input side of the synchronous transformer is connected to the other end of the AC power supply. One end of the output side of the synchronous transformer is connected to the control port 2 of the solid-state pulse relay, and the other end of the output side of the synchronous transformer is connected to the power ground port 3 of the solid-state pulse relay and the power ground. One end of the filter capacitor C is connected to the power ground port 3 of the solid-state pulse relay, and the other end of the filter capacitor C is connected to the blocking port 4 of the solid-state pulse relay. The first output port 5 of the solid-state pulse relay is connected to an external load.

[0028] The above-mentioned frequency-controlled relay has a filter capacitor C connected across the solid-state pulse relay power supply port 3 and the blocking port 4. When a sinusoidal wave signal of a certain frequency is input to the control terminal, the GS poles of the field-effect transistors Q1 and Q2 of the solid-state pulse relay receive a continuous DC voltage signal, causing the relay to be continuously turned on.

[0029] It should be noted that although the embodiments of the present invention described above are illustrative, they are not intended to limit the present invention. Therefore, the present invention is not limited to the above-mentioned specific embodiments. Without departing from the principles of the present invention, any other embodiments obtained by those skilled in the art under the guidance of the present invention are deemed to be within the protection of the present invention.

Claims

1. A solid-state pulse relay, characterized in that: The solid-state pulse relay consists of resistors R1 to R12, diodes D1 to D4, transistors V1 to V7, and field effect transistors Q1 to Q2; One end of the resistor R1, one end of the resistor R6, one end of the resistor R8, the cathode of the diode D1, and the collector of the transistor V2 are connected to form the bias power supply port 1 of the solid-state pulse relay; the other end of the resistor R1, one end of the resistor R2, the collector of the transistor V1, and the base of the transistor V2 are connected; the other end of the resistor R2, one end of the resistor R3, and the base of the transistor V1 are connected to form the control port 2 of the solid-state pulse relay; the other end of the resistor R3, one end of the resistor R4, the transistor V1 The emitter of transistor V2, the emitter of transistor V3, and the base of transistor V3 are connected; the other end of resistor R4, one end of resistor R5, one end of resistor R9, one end of resistor R10, the positive electrode of diode D4, the collector of transistor V3, the emitter of transistor V5, the emitter of transistor V6, the source of field effect transistor Q1, and the source of field effect transistor Q2 are connected, and form the power ground port 3 of the solid pulse relay; the emitter of transistor V2, the emitter of transistor V3, and the base of transistor V5 are connected; the other end of resistor R5, the emitter of transistor V6, the positive electrode of diode D4, the collector of transistor V3, the emitter of transistor V5, and the source of field effect transistor Q2 are connected, and form the power ground port 3 of the solid pulse relay; the emitter of transistor V2, the emitter of transistor V3, and the base of transistor V5 are connected; the other end of resistor R5, The positive electrode of diode D1 is connected to the base of transistor V4; the other end of resistor R6 is connected to the emitter of transistor V4; one end of resistor R7 is connected to the collector of transistor V4 and the collector of transistor V5; the other end of resistor R7 is connected to the base of transistor V6; the other end of resistor R8 is connected to the positive electrode of diode D2 and the collector of transistor V6; the other end of resistor R9 is connected to the cathode of diode D2, the positive electrode of diode D3 and the base of transistor V7; the other end of resistor R10 is connected to the cathode of diode D2, the positive electrode of diode D3 and the base of transistor V7 It is connected to the collector of the transistor V7; one end of the resistor R11, one end of the resistor R12, the cathode of the diode D3, the cathode of the diode D4, and the emitter of the transistor V7 are connected, and form a blocking port 4 of the solid-state pulse relay; the other end of the resistor R11 is connected to the gate of the field-effect transistor Q1; the other end of the resistor R12 is connected to the gate of the field-effect transistor Q2; the drain of the field-effect transistor Q2 forms the first output port 5 of the solid-state pulse relay; the drain of the field-effect transistor Q1 forms the second output port 6 of the solid-state pulse relay.

2. A sine wave to square wave circuit implemented by the solid-state pulse relay according to claim 1, characterized in that: The sine wave to square wave circuit consists of a synchronous transformer and a pull-down resistor R; The bias power supply port 1 of the solid-state pulse relay is connected to the power supply VCC; the second output port 6 of the solid-state pulse relay is connected to the power supply VDD; the blocking port 4 of the solid-state pulse relay is suspended; the two ends of the input side of the synchronous transformer form a sine wave input terminal U IN One end of the output side of the first synchronous transformer is connected to the control port 2 of the first solid-state pulse relay; the other end of the output side of the first synchronous transformer is connected to the power ground port 3 of the first solid-state pulse relay and the power ground; one end of the pull-down resistor R is connected to the first output port 5 of the solid-state pulse relay, and forms a square wave output terminal U OUT , the other end of the pull-down resistor R is grounded.

3. A half-wave rectifier circuit implemented by the solid-state pulse relay according to claim 1, characterized in that: The half-wave rectifier circuit is composed of a solid-state pulse relay, a synchronous transformer, and a load and filter circuit; The bias power supply port 1 of the solid-state pulse relay is connected to the power supply VCC; the blocking port 4 of the solid-state pulse relay is suspended; one end of the input side of the synchronous transformer and the second output port 6 of the solid-state pulse relay are connected to one end of the AC power supply; the other end of the input side of the synchronous transformer is connected to one end of the load and the filter circuit and the other end of the AC power supply; one end of the output side of the synchronous transformer is connected to the control port 2 of the solid-state pulse relay; the other end of the output side of the synchronous transformer is connected to the power ground port 3 of the solid-state pulse relay and the power ground; the first output port 5 of the solid-state pulse relay is connected to the other end of the load and the filter circuit.

4. A full-bridge rectifier circuit implemented using the solid-state pulse relay according to claim 1, characterized in that: The full-bridge rectifier circuit consists of four solid-state pulse relays, four synchronous transformers, and load and filter circuits; The bias power supply ports 1 of the four solid-state pulse relays are all connected to the power supply VCC; the blocking ports 4 of the four solid-state pulse relays are all suspended; One end of the input side of the four synchronous transformers is simultaneously connected to one end of the AC power supply; the other end of the input side of the four synchronous transformers is simultaneously connected to the other end of the AC power supply; one end of the output side of the first synchronous transformer is connected to the control port 2 of the first solid-state pulse relay; the other end of the output side of the first synchronous transformer is connected to the power ground port 3 of the first solid-state pulse relay and the power ground; One end of the output side of the second synchronous transformer is connected to the control port 2 of the second solid-state pulse relay; the other end of the output side of the second synchronous transformer is connected to the power ground port 3 of the second solid-state pulse relay and the power ground; one end of the output side of the third synchronous transformer is connected to the control port 2 of the third solid-state pulse relay; the other end of the output side of the third synchronous transformer is connected to the power ground port 3 of the third solid-state pulse relay and the power ground; one end of the output side of the fourth synchronous transformer is connected to the control port 2 of the fourth solid-state pulse relay; the other end of the output side of the fourth synchronous transformer is connected to the power ground port 3 of the fourth solid-state pulse relay and the power ground; The first output port 5 of the first solid-state pulse relay is connected to the second output port 6 of the third solid-state pulse relay; The first output port 5 of the second solid-state pulse relay is connected to the second output port 6 of the fourth solid-state pulse relay; The second output ports 6 of the first solid-state pulse relay and the second solid-state pulse relay are connected to the load and one end of the filter circuit; The first output ports 5 of the third solid-state pulse relay and the fourth solid-state pulse relay are connected to the load and one end of the filter circuit.

5. A frequency-controlled relay implemented using the solid-state pulse relay according to claim 1, characterized in that: The frequency controlled relay consists of a solid-state pulse relay, a synchronous transformer, and a filter capacitor C; The bias power supply port 1 of the solid-state pulse relay is connected to the power supply VCC; the second output port 6 of the solid-state pulse relay is connected to the power supply VDD; one end of the input side of the synchronous transformer is connected to one end of the AC power supply, and the other end of the input side of the synchronous transformer is connected to the other end of the AC power supply; one end of the output side of the synchronous transformer is connected to the control port 2 of the solid-state pulse relay, and the other end of the output side of the synchronous transformer is connected to the power ground port 3 of the solid-state pulse relay and the power ground; one end of the filter capacitor C is connected to the power ground port 3 of the solid-state pulse relay, and the other end of the filter capacitor C is connected to the blocking port 4 of the solid-state pulse relay; the first output port 5 of the solid-state pulse relay is connected to an external load.

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