A socket control circuit with adjustable power

Abstract

The present invention discloses a socket control circuit with adjustable power, including a power supply circuit, a power adjustment circuit, and an automatic power-off circuit; in the power adjustment circuit, it is started by the touch switch S, so that the step-cycle relay K is energized and attracted, and the corresponding normally open contacts K1, K2, K3, and the normally closed contact K4 act in sequence. By using the capacitors C4, C5, C6 to be connected in series in sequence, the conduction angle of the bidirectional thyristor SCR is gradually increased, and the circuit at the socket position is disconnected, realizing the sequential cycle of low-power, medium-power, high-power output, and power-off response of the circuit, and realizing the adjustment of the output power according to the power of the electrical equipment; in the automatic power-off circuit, by using the high and low levels of the output of pin 1 of the integrated circuit IC2 and the charging of the capacitor C9, the high and low levels of the output of pin 3 in the integrated circuit IC3 are controlled, so that the relay J2 is attracted or de-energized, and the corresponding normally open contact J2-1 is closed or opened, realizing the automatic power-off after the supply current in the socket circuit becomes smaller.

Description

Technical Field

[0001] The invention relates to a socket circuit, belonging to the technical field of power supplies, and in particular to a power-adjustable socket control circuit. Background Art

[0002] Standby power consumption refers to the amount of electricity consumed by an appliance when it is plugged in (but not in use). This is generally low, ranging from a few watts to tens of watts, but can increase over time.

[0003] To avoid long-term standby power consumption, there are generally two solutions. One is to unplug the electrical device from the socket when not in use. Although this fundamentally solves the problem of standby power consumption, there are problems: inconvenient operation. For example, to ensure electrical safety, some sockets are installed in relatively hidden corners, which are inconvenient to open or close by hand. For example, for special sockets for certain electrical devices, plugging and unplugging themselves poses a safety hazard. The second is to install a switch on the socket. However, for socket strips with multiple sockets, once the switch is turned off, all sockets will be unusable.

[0004] In addition, many sockets only serve to connect electrical devices and cannot adjust the output power according to the actual power consumption, making it impossible to achieve effective energy saving. Summary of the Invention

[0005] The purpose of the present invention is to provide a socket control circuit with adjustable power, which has a simple structure and can not only realize the corresponding cycle of low power, medium power, high power output and power off of the circuit, but also adjust the output power according to the power of the electrical equipment, and realize automatic power off when the supply current becomes small, thereby effectively saving electricity.

[0006] To achieve the above-mentioned purpose, the present invention provides a power-adjustable socket control circuit, comprising a power supply circuit;

[0007] One end of the main switch SB is connected to the AC power supply L, and the other end is connected to the power supply circuit, and is sequentially connected to the socket, the normally closed contact K4, the T1 pole of the bidirectional thyristor SCR, and then the T2 pole of the bidirectional thyristor SCR is connected to the resistor R6 and the AC power supply N terminal;

[0008] It also includes a power regulation circuit and an automatic power-off circuit;

[0009] The power regulation circuit includes:

[0010] Resistor R5 is connected between the T1 and G poles of the bidirectional thyristor SCR;

[0011] Triode BG2, with its base connected to the touch switch S, collector connected to the positive electrode of diode D3, emitter grounded, the negative electrode of diode D3 connected to the output terminal of the power supply circuit, and a step-cycle relay K connected in parallel on both sides;

[0012] Capacitor bank, having capacitors C4, C5, and C6 connected in series in turn between the G pole of the triac SCR and the normally open contact J5-1 of relay J5. A normally open contact J3-1 of relay J3 grounded is connected between C4 and C5, and a normally open contact J4-1 of relay J4 grounded is connected between C5 and C6. One end of the normally open contact J5-1 is grounded;

[0013] Relay bank, having relays J3, J4, and J5. Relay J3 is connected in series with the normally open contact K1, relay J4 is connected in series with the normally open contact K2, and relay J5 is connected in series with the normally open contact K3. After the three are connected in parallel, they are connected between the output terminal of the power supply circuit and the ground terminal;

[0014] The automatic power-off circuit includes:

[0015] Integrated circuit IC2, its pin 1 is respectively connected to pin 2 of integrated circuit IC3 and the negative electrode of diode D6, pin 2 is respectively connected to the negative electrode of diode D5, the positive electrode of capacitor C8 with its negative electrode grounded, and connected to resistor R7 and then grounded, pin 3 is respectively connected to resistor R8 and then grounded, and connected to potentiometer RP1 and then connected to the output terminal of the power supply circuit, pin 4 is grounded, pin 5 is respectively connected to the positive electrode of diode D6 and pin 6 of integrated circuit IC3, pin 6 is respectively connected to potentiometer RP2 and then grounded, and connected to resistor R9 and then connected to the output terminal of the power supply circuit, pin 8 is connected to the output terminal of the power supply circuit;

[0016] The positive electrode of capacitor C7 is respectively connected to the positive electrode of diode D5 and the negative electrode of diode D4 with its positive electrode grounded, and the negative electrode is connected between resistor R6 and the T2 pole of the triac SCR;

[0017] Integrated circuit IC3, its pin 1 is grounded, pin 3 is connected to resistor R10 and then connected to the base of triode BG3, pin 4 and pin 8 are commonly connected to the output terminal of the power supply circuit, pin 5 is connected to capacitor C10 and then grounded, pin 6 and pin 7 are commonly connected and then respectively connected to the positive electrode of capacitor C9 with its negative electrode grounded and potentiometer RP3 and then connected to the output terminal of the power supply circuit;

[0018] Triode BG3, with its collector connected to the positive electrode of diode D2, emitter grounded, the negative electrode of diode D2 connected to the output terminal of the power supply circuit, and a relay J2 connected in parallel on both sides; The normally open contact J2-1 of relay J2 is connected in parallel with the main switch SB.

[0019] In some embodiments, pin 7 of the integrated circuit IC2 is connected to the base of the triode BG4 through the resistor R11;

[0020] The collector of the triode BG4 is sequentially connected to the buzzer SW and the output terminal of the power supply circuit, and the emitter is grounded.

[0021] In some embodiments, the power adjustment circuit further includes: light-emitting diodes LED2, LED3, and LED4;

[0022] The negative electrode of the light-emitting diode LED2 is grounded, and the positive electrode is first connected to the normally open contacts J3-2, J4-2, J5-2 in parallel and then connected to the output terminal of the power supply circuit;

[0023] The negative electrode of the light-emitting diode LED3 is grounded, and the positive electrode is first connected to J4-3, J5-3 in parallel and then connected to the output terminal of the power supply circuit;

[0024] The negative electrode of the light-emitting diode LED4 is grounded, and the positive electrode is first connected to J5-4 and then connected to the output terminal of the power supply circuit.

[0025] In some embodiments, the power supply circuit includes:

[0026] Transformer B1, terminal 1 is connected to the main switch SB, terminal 2 is connected to the N terminal of the AC power supply, terminal 3 is connected to pin 1 of the rectifier stack UR, and terminal 4 is connected to pin 2 of the rectifier stack UR;

[0027] Integrated circuit IC1, pin 1 is connected to pin 3 of the rectifier stack UR, pin 2 is grounded, and pin 3 is used as the output terminal;

[0028] Capacitor bank, having a capacitor C1 with the positive electrode connected to pin 1 of the integrated circuit IC1 and the negative electrode grounded, and a capacitor C2 with the positive electrode connected to pin 3 of the integrated circuit IC1 and the negative electrode grounded;

[0029] Pin 4 of the rectifier stack UR is grounded.

[0030] In some embodiments, the power supply circuit further includes a light-emitting diode LED1;

[0031] The positive electrode of the light-emitting diode LED1 is connected to pin 3 of the integrated circuit IC1, and the negative electrode is grounded.

[0032] In some embodiments, a remote control circuit is further included;

[0033] The remote control circuit includes:

[0034] Infrared receiver IRX, pin 1 is grounded, pin 2 is connected to the positive electrode of the capacitor C3, and the negative electrode of the capacitor C3 is grounded;

[0035] A resistor group having resistors R1, R2, R3, and R4, where resistor R1 is connected between the output terminal of the power supply circuit and pin 2 of the infrared receiver IRX, resistor R2 is connected between the output terminal of the power supply circuit and pin 3 of the infrared receiver IRX, resistor R3 is connected between pin 3 of the infrared receiver IRX and the base of the triode BG1, and resistor R4 is connected between pin 2 of the infrared receiver IRX and the emitter of the triode BG1;

[0036] A triode BG1, whose collector is connected to the negative electrode of the diode D1, the positive electrode of the diode D1 is grounded, and a relay J1 is connected in parallel on both sides;

[0037] The normally open contact J1-1 of the relay J1 is connected between the output terminal of the power supply circuit and the base of the triode BG2.

[0038] In some embodiments, a socket panel is further included;

[0039] The power switch SB, the infrared receiver IRX, the touch switch S, the power indicator light, the power intensity indicator light, and the buzzer are all installed on the socket panel;

[0040] Among them, the power indicator light is the light-emitting diode LRE1, and the power intensity indicator lights are the light-emitting diodes LED2, LED3, and LED4.

[0041] In the above embodiments, the model of the integrated circuit IC1 is 7805, the integrated circuit IC2 is a voltage comparator with the model LM393, the model of the integrated circuit IC3 is NE555, the models of the diodes D1-D6 are IN4007, the triode BG1 is a PNP type with the model 9013, the triode BG2 is an NPN type with the model 3DG12, the triode BG3 is an NPN type with the model 3DG12, the triode BG4 is an NPN type with the model 8050, the model of the bidirectional thyristor SCR is TLC336A, the model of the infrared receiver IRX is HS0038A2, and the model of the step cyclic relay K is ZS-401F.

[0042] Compared with the prior art, the adjustable power socket control circuit of the present invention is started by the touch switch S, so that the step-cycle relay K is energized and attracted, and the corresponding normally open contacts K1, K2, K3, and the normally closed contact K4 act in sequence. By using capacitors C4, C5, and C6 to be superimposed and connected in series in sequence, the conduction angle of the bidirectional thyristor SCR is gradually increased, and the circuit at the socket position is disconnected, realizing the sequential cycle of low power, medium power, high power output, and power-off response of the circuit, and realizing the adjustment of the output power according to the power of the electrical equipment; in addition, in the automatic power-off circuit, the power supply current in the socket circuit becomes smaller and then the power is automatically cut off. The electrical equipment uses large current for power supply at the beginning stage, and then uses small current for power supply after the work is basically completed, and then the power supply is automatically cut off after a certain delay, effectively saving electric energy;

[0043] In some embodiments, the 7th pin of the integrated circuit IC2 is connected to the base of the triode BG4 through the resistor R11. When the electrical equipment is in the state of large current power supply or small current power supply, the buzzer SW can be correspondingly turned off or started to sound to remind that the work is completed / charging is over, making it more convenient for the user to operate and enabling the user to quickly understand the working state of the circuit, which is more convenient;

[0044] In some embodiments, by separately lighting the light-emitting diode LED2, jointly lighting the light-emitting diodes LED2 and LED3, and lighting the light-emitting diodes LED2, LED3, and LED4, the circuit is correspondingly presented in the low, medium, and high power states, facilitating the user to identify or judge the power output state of the circuit;

[0045] In some embodiments, a remote control circuit is set. When the remote control button is pressed, the signal is received by the infrared receiver IRX. The low level output from the 3rd pin of the infrared receiver IRX makes the triode BG1 conduct. At this time, the relay J1 is attracted, and its normally open contact J1-1 connected between the output end of the power supply circuit and the base of the triode BG2 is closed, realizing the start of the touch switch S and completing the long-distance remote control, which is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is the overall circuit schematic diagram of the present invention; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] Such as Figure 1As shown, a socket control circuit with adjustable power includes a power supply circuit, a power adjustment circuit, and an automatic power-off circuit;

[0049] One end of the main switch SB is connected to the AC power supply L, and the other end is respectively connected to the power supply circuit, and then connected to the socket, the normally closed contact K4, the T1 pole of the bidirectional thyristor SCR in sequence, and then from the T2 pole of the bidirectional thyristor SCR, it is connected to the resistor R6 and the N terminal of the AC power supply;

[0050] The power adjustment circuit includes:

[0051] Resistor R5 is connected between the T1 pole and the G pole of the bidirectional thyristor SCR;

[0052] The triode BG2 has its base connected to the touch switch S, its collector connected to the positive pole of the diode D3, its emitter grounded, the negative pole of the diode D3 connected to the output terminal of the power supply circuit, and a step-cycle relay K is connected in parallel on both sides;

[0053] The capacitor group has capacitors C4, C5, and C6 connected in series in sequence between the G pole of the bidirectional thyristor SCR and the normally open contact J5-1 of the relay J5. The normally open contact J3-1 of the relay J3 grounded is connected between C4 and C5, and the normally open contact J4-1 of the relay J4 grounded is connected between C5 and C6. One end of the normally open contact J5-1 is grounded;

[0054] The relay group has relays J3, J4, and J5. The relay J3 is connected in series with the normally open contact K1, the relay J4 is connected in series with the normally open contact K2, and the relay J5 is connected in series with the normally open contact K3. The three are connected in parallel between the output terminal of the power supply circuit and the ground terminal;

[0055] The automatic power-off circuit includes:

[0056] Integrated circuit IC2, its pin 1 is respectively connected to pin 2 of integrated circuit IC3 and the negative pole of diode D6, its pin 2 is respectively connected to the negative pole of diode D5, the positive pole of capacitor C8 with its negative pole grounded, and then connected to resistor R7 and then grounded, its pin 3 is respectively connected to resistor R8 and then grounded, and connected to potentiometer RP1 and then connected to the output terminal of the power supply circuit, its pin 4 is grounded, its pin 5 is respectively connected to the positive pole of diode D6 and pin 6 of integrated circuit IC3, its pin 6 is respectively connected to potentiometer RP2 and then grounded, and connected to resistor R9 and then connected to the output terminal of the power supply circuit, its pin 8 is connected to the output terminal of the power supply circuit;

[0057] The positive pole of capacitor C7 is respectively connected to the positive pole of diode D5 and the negative pole of diode D4 with its positive pole grounded, and its negative pole is connected between resistor R6 and the T2 pole of the bidirectional thyristor SCR;

[0058] Integrated circuit IC3, its pin 1 is grounded, pin 3 is connected to resistor R10 and then connected to the base of transistor BG3, pin 4 and pin 8 are commonly connected to the output terminal of the power supply circuit, pin 5 is connected to capacitor C10 and then grounded, pin 6 and pin 7 are commonly connected and then respectively connected to the positive electrode of capacitor C9 and the negative electrode of capacitor C9 is grounded, and potentiometer RP3 is connected and then connected to the output terminal of the power supply circuit;

[0059] Transistor BG3, the collector is connected to the positive electrode of diode D2, the emitter is grounded, the negative electrode of diode D2 is connected to the output terminal of the power supply circuit, and a relay J2 is connected in parallel on both sides; The normally open contact J2-1 of relay J2 is connected in parallel with the main switch SB;

[0060] Specifically, the power supply circuit provides power for the power adjustment circuit and the automatic power-off circuit; When touching the touch switch S in the power adjustment circuit, the stray electromagnetic signal induced by the human body can be input, that is, applied to the base of transistor BG2; The step-cycle relay can maintain the contact self-locking by relying on its special mechanical structure and cycle sequentially according to the signal;

[0061] In the initial state, the 3 normally open contacts K1, K2, and K3 of the step-cycle relay K installed in the power adjustment circuit are in the released state, and the normally closed contact K4 is in the closed state; At this time, when a person touches the touch switch S for the first time, the stray electromagnetic signal induced by the human body is applied to the base of transistor BG2, and transistor BG2 conducts, and the step-cycle relay K is energized and attracted. Its normally open contact K1 closes first and can maintain "self-locking" by relying on the internal special mechanical mechanism. Relay J3 is connected in series with the normally open contact K1. At this time, relay J3 is energized and attracted, and the corresponding normally open contact J3-1 closes and conducts; Since the normally open contact J3-1 of relay J3 grounded is connected between capacitor C4 and C5, the equivalent phase-shifting capacitor is C4 at this time, its value is larger, and the conduction angle of the triac SCR is smaller, for example, 17°, in the low-power output state;

[0062] When a person touches the touch switch S again, transistor BG2 conducts, and the step-cycle relay K is energized and attracted again. Its normally open contact K2 closes and the normally open contact K1 opens. The corresponding relay J4 is energized and attracted, and relay J3 loses power and opens. Since the normally open contact J4-1 of relay J4 grounded is connected between capacitor C5 and C6, that is, at this time, capacitor C4 and C5 are in series, and their capacitance value decreases, and the conduction angle of the triac SCR increases, for example, 86°, in the medium-power output state;

[0063] When the human hand continues to touch the touch switch S, the triode BG2 conducts, and the step-cycle relay K continues to be energized and attracted. Its normally open contact K3 closes and its normally open contact K2 opens. Accordingly, the relay J5 is energized and attracted, and the relay J4 loses power and opens. Since the normally open contact J5-1 is connected to one end of the capacitor C6, at this time, the capacitors C4, C5, and C5 are in series, and their capacitance value is further reduced. The conduction angle of the triac SCR is further increased, for example, above 121°, and it is in the high-power output state;

[0064] When the touch switch S is touched for the fourth time, the step-cycle relay K continues to be energized and attracted, and the normally closed contact K4 connected to the main socket line opens, and the socket is powered off; when the touch switch S is touched for the fifth time, the normally open contact K1 closes at this time, and it is in the low-power output state, and the cycle continues. That is, by touching the touch switch S in sequence, the step-cycle relay K is energized accordingly, and the low-power, medium-power, high-power, power-off, low-power, etc. cycles are carried out in sequence;

[0065] When this automatic power-off circuit is working specifically, the plug of the electrical equipment is inserted into the socket, and the main switch SB is pressed. The output end of the power supply circuit outputs a high level, the triode BG3 conducts, the relay J2 is energized and attracted, and the normally open contact J2-1 closes, making the overall circuit of this socket self-locking, that is, the main switch SB automatically resets without affecting the output of the power supply circuit;

[0066] Generally speaking, to ensure the stable connection of electrical equipment, many electrical equipment often supply power with a large current at the beginning of use or charging. The voltage across both ends of the resistor R6 connected between the AC power supply L and N terminals is relatively large. The 2nd pin of the integrated circuit IC2 is connected to the diode D5, the capacitor C5, and the resistor R6. Therefore, the voltage of the resistor R6 will be sent to the 2nd pin of the integrated circuit IC2. At this time, the value is greater than that of the 3rd pin, and the 1st pin outputs a low level, and the signal is sent to the 2nd pin of the integrated circuit IC3, making the integrated circuit IC3 form a monostable circuit. The integrated circuit IC3 continues to maintain the set state, and its 3rd pin outputs a high level and the connected triode BG3 conducts. The relay J2 is energized and attracted, and the open contact J2-1 closes, and the overall circuit of the socket is always in the on state;

[0067] When the electrical equipment is used or charged until the end, it will change to small - current power supply. Accordingly, the voltage value across the sampling resistor R6 decreases. The voltage at pin 2 of the integrated circuit IC2 is less than that at pin 3. Its pin 1 outputs a high level, the diode D6 is cut off, and the output terminal of the power - supply circuit will charge the capacitor C9 through the potentiometer RP3. When the charging voltage of the capacitor C9 is greater than 2 / 3 of Vcc, the pin 3 of the integrated circuit IC3 outputs a low level, the triode BG3 is cut off, the relay J2 loses power, and the normally - open contact J2 - 1 disconnects. At this time, the socket that relies on the conduction of the normally - open contact J2 - 1 will be powered off, and the overall circuit of the socket stops supplying power. By increasing the resistance value of the potentiometer RP3, the charging time of the capacitor C9 will become longer. On the contrary, by decreasing the resistance value of the potentiometer RP3, the charging time of the capacitor C9 will become shorter. Therefore, the function of automatically cutting off the power when the supply current becomes smaller is realized;

[0068] The socket control circuit with adjustable power is started by the touch switch S, which makes the step - cycle relay K energize and close. Accordingly, the corresponding normally - open contacts K1, K2, K3, and the normally - closed contact K4 act in sequence. By using the capacitors C4, C5, C6 to be connected in series in an overlapping manner, the conduction angle of the bidirectional thyristor SCR gradually increases, and the circuit at the socket position is disconnected, realizing the sequential cycle of low - power, medium - power, high - power output, and power - off response of the circuit, and realizing the adjustment of the output power according to the power of the electrical equipment. Additionally, in the automatic power - off circuit, by using the high or low level output at pin 1 of the integrated circuit IC2 and the fact that the charge of the capacitor C9 can be discharged by the diode D6, the high or low level output at pin 3 of the integrated circuit IC3 is controlled, so that the relay J2 is energized or loses power, and the corresponding normally - open contact J2 - 1 is closed or disconnected, realizing the automatic power - off after the supply current of the socket circuit becomes smaller. That is, the electrical equipment uses large - current power supply at the beginning stage, uses small - current power supply after the work is basically completed, and then automatically delays (charges the capacitor C9) for a period of time to automatically cut off the power, effectively saving electric energy.

[0069] In some embodiments, pin 7 of the integrated circuit IC2 is connected to the base of the triode BG4 through the resistor R11;

[0070] The collector of the triode BG4 is connected to the buzzer SW and the output terminal of the power - supply circuit in sequence, and the emitter is grounded;

[0071] Specifically, when the value at pin 2 of the integrated circuit IC2 in the automatic power - off circuit is greater than that at pin 3 and pin 1 outputs a low level, since pin 1 of the integrated circuit IC2 is connected to the negative electrode of the diode D6, the positive electrode of the diode D6 is connected to pin 5 of the integrated circuit IC2, and the positive electrode of the capacitor C9 is connected to the output terminal of the power - supply circuit through the potentiometer RP3, the charge of the capacitor C9 will be discharged through the diode D6. The voltage at pin 5 of the integrated circuit IC2 is less than that at pin 6, its pin 7 outputs a low level, the triode BG4 is cut off, and the buzzer SW does not sound;

[0072] When the value of pin 2 of integrated circuit IC2 in the automatic power-off circuit is less than that of pin 3 and the output of pin 1 is at a high level, the charging voltage of the capacitor will gradually increase (the diode D6 cannot discharge it), so that when the voltage of pin 5 of integrated circuit IC2 is greater than the voltage of pin 6, the output of pin 7 of integrated circuit IC2 is at a high level, the triode BG4 conducts, and the buzzer SW sounds to tell the user that the electrical equipment has completed its work or the charging has ended. The value of the potentiometer RP2 can be adjusted so that the power-off time of the circuit is the same as the sounding time of the buzzer;

[0073] In this embodiment, when the electrical equipment is in a state of high-current power supply or low-current power supply, the buzzer SW can be correspondingly turned off or started to sound to remind that the work has been completed / charging has ended, making it more convenient for the user to operate and enabling the user to quickly understand the working state of this circuit, which is more convenient.

[0074] In some embodiments, the power adjustment circuit further includes: light-emitting diodes LED2, LED3, and LED4;

[0075] The cathode of the light-emitting diode LED2 is grounded, and the anode is first connected to the normally open contacts J3-2, J4-2, and J5-2 in parallel and then connected to the output end of the power supply circuit;

[0076] The cathode of the light-emitting diode LED3 is grounded, and the anode is first connected to J4-3 and J5-3 in parallel and then connected to the output end of the power supply circuit;

[0077] The cathode of the light-emitting diode LED4 is grounded, and the anode is first connected to J5-4 and then connected to the output end of the power supply circuit;

[0078] Specifically, the light-emitting diode LED2 is turned on and lit regardless of whether the circuit is in low, medium, or high power output. The light-emitting diode LED3 is turned on and lit when the circuit is in medium or high power output. The light-emitting diode LED4 is turned on and lit only when the circuit is in high power output;

[0079] When in the low power output state, the normally open contact K1 is closed, the relay J3 is energized and attracted, and at this time the normally open contact J3-2 is connected, and the light-emitting diode LED2 is lit. When in the medium power output state, the normally open contact K2 is closed, the normally open contact K1 is opened, the relay J4 is energized and attracted, and the relay J3 is de-energized and disconnected. At this time, the normally open contacts J4-2 and J4-3 are connected, and the corresponding light-emitting diodes LED2 and LED3 are lit. When in the high power output state, the normally open contact K3 is closed, the normally open contact K2 is opened, the relay J5 is energized and attracted, and the relay J4 is de-energized and disconnected. At this time, the normally open contacts J5-2, J5-3, and J5-4 are all connected, and the corresponding light-emitting diodes LED2, LED3, and LED4 are lit;

[0080] In this embodiment, the light-emitting diode LED2 is lit alone, the light-emitting diodes LED2 and LED3 are lit together, and the light-emitting diodes LED2, LED3, and LED4 are all lit to correspondingly present the states of the circuit at low, medium, and high powers, facilitating the user to identify or judge the power output state of the circuit.

[0081] In some embodiments, the power supply circuit includes:

[0082] Transformer B1, with terminal 1 connected to the main switch SB, terminal 2 connected to the N terminal of the AC power supply, terminal 3 connected to pin 1 of the rectifier UR, and terminal 4 connected to pin 2 of the rectifier UR;

[0083] Integrated circuit IC1, with pin 1 connected to pin 3 of the rectifier UR, pin 2 grounded, and pin 3 as the output terminal;

[0084] Capacitor bank, having a capacitor C1 with the positive electrode connected to pin 1 of the integrated circuit IC1 and the negative electrode grounded, and a capacitor C2 with the positive electrode connected to pin 3 of the integrated circuit IC1 and the negative electrode grounded;

[0085] Pin 4 of the rectifier UR is grounded.

[0086] Furthermore, the power supply circuit further includes a light-emitting diode LED1;

[0087] The positive electrode of the light-emitting diode LED1 is connected to pin 3 of the integrated circuit IC1, and the negative electrode is grounded.

[0088] Specifically, the on / off of the light-emitting diode LED1 is used to present whether the socket circuit is connected. That is, when the power supply circuit (pin 3 of the integrated circuit IC1) is powered on, the light-emitting diode LED1 is lit; when the power supply circuit (pin 3 of the integrated circuit IC1) is powered off, the light-emitting diode LED1 is extinguished, facilitating the user to judge the overall state of the circuit according to the display.

[0089] In some embodiments, the adjustable power socket control circuit further includes a remote control circuit;

[0090] The remote control circuit includes:

[0091] Infrared receiver IRX, with pin 1 grounded, pin 2 connected to the positive electrode of capacitor C3, and the negative electrode of capacitor C3 grounded;

[0092] Resistor group, having resistors R1, R2, R3, and R4. Resistor R1 is connected between the output terminal of the power supply circuit and pin 2 of the infrared receiver IRX, resistor R2 is connected between the output terminal of the power supply circuit and pin 3 of the infrared receiver IRX, resistor R3 is connected between pin 3 of the infrared receiver IRX and the base of the triode BG1, and resistor R4 is connected between pin 2 of the infrared receiver IRX and the emitter of the triode BG1;

[0093] The triode BG1 has its collector connected to the negative electrode of the diode D1. The positive electrode of the diode D1 is grounded, and a relay J1 is connected in parallel on both sides.

[0094] The normally open contact J1-1 of the relay J1 is connected between the output terminal of the power supply circuit and the base of the triode BG2.

[0095] Specifically, the infrared receiver IRX belongs to an existing structure and is a signal device for receiving and outputting infrared rays.

[0096] When this embodiment is working, when a remote control button is manually pressed, the signal is received by the infrared receiver IRX. The low level output from pin 3 of the infrared receiver IRX causes the triode BG1 to conduct. At this time, the relay J1 is attracted, and its normally open contact J1-1 connected between the output terminal of the power supply circuit and the base of the triode BG2 closes, which is equivalent to manually touching the touch switch S, causing BG2 to conduct, and the relay K is energized and attracted. At this time, the normally open contact K1 is energized and attracted, and it is in a low-power output state. When the remote control button is pressed again, it is equivalent to manually touching the touch switch S for the second time. At this time, the normally open contact K2 is energized and attracted, and it is in a medium-power output state, and so on, realizing remote control over a long distance.

[0097] When the relay J1 operates, it requires a large current, which is supplied by the charging voltage of the capacitor C3. When the relay J1 is energized and operates, the voltage of the capacitor C3 drops to about 1V after discharging. It takes 5 seconds for the capacitor C3 to charge to the normal voltage before the next remote control operation can be performed. That is, each remote control operation through the infrared receiver IRX requires an interval of 5 seconds, and the length of the remote control interval can be achieved by changing the capacitance value of the capacitor C3.

[0098] In some embodiments, this adjustable-power socket control circuit further includes a socket panel.

[0099] The power switch SB, the infrared receiver IRX, the touch switch S, the power indicator light, the power intensity indicator lights, and the buzzer are all installed on the socket panel.

[0100] Among them, the power indicator light is the light-emitting diode LRE1, and the power intensity indicator lights are the light-emitting diodes LED2, LED3, and LED4.

[0101] Specifically, the socket panel is used to display the operating state of this intelligent socket. For example, when the diodes LED2, LED3, and LED4 light up, it indicates the power intensity, and the styles of "low", "medium", and "high" can be marked at the corresponding positions; the main switch SB uses a spring-loaded automatic reset button for turning on and off the total control circuit.

[0102] In the use of the adjustable power socket control circuit of the present invention and in each of the above embodiments, the model of integrated circuit IC1 is 7805, integrated circuit IC2 is a voltage comparator with the model of LM393, the model of integrated circuit IC3 is NE555, the models of diodes D1 - D6 are IN4007, triode BG1 is a PNP transistor with the model of 9013, triode BG2 is an NPN transistor with the model of 3DG12, triode BG3 is an NPN transistor with the model of 3DG12, triode BG4 is an NPN transistor with the model of 8050, the model of bidirectional thyristor SCR is TLC336A, the model of infrared receiver IRX is HS0038A2, and the model of step - cycle relay K is ZS - 401F;

[0103] And in the actual use of the adjustable power socket control circuit of the present invention, resistor R1 is 100Ω, resistor R2 is 10kΩ, resistor R3 is 1kΩ, resistor R4 is 100Ω, resistor R5 is 68kΩ, resistor R6 is 0.5kΩ, resistor R7 is 5kΩ, resistor R8 is 1kΩ, resistor R9 is 5kΩ, resistor R10 is 1kΩ, resistor R11 is 1kΩ;

[0104] Capacitor C1 is 100μF, capacitor C2 is 100μF, capacitor C3 is 100μF, capacitor C4 is 1μF, capacitor C5 is 0.33μF, capacitor C6 is 0.22μF, capacitor C7 is 100μF, capacitor C8 is 100μF, capacitor C9 is 100μF, capacitor C10 is 0.1μF;

[0105] The total resistance value of potentiometer RP1 is 10kΩ, the total resistance value of potentiometer RP2 is 10kΩ, and the total resistance value of potentiometer RP3 is 1MΩ.

[0106] The above - described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that although the present invention has been shown and described with reference to various embodiments, for those of ordinary skill in the art, without departing from the concept of the present invention, several various deformations and improvements in form and details can still be made without departing from the scope of the present invention defined by the appended claims. These all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An adjustable power socket control circuit, including a power supply circuit; One end of the main switch SB is connected to the AC power supply L, and the other end is respectively connected to the power supply circuit, and is successively connected to the socket, the normally closed contact K4, the T1 pole of the bidirectional thyristor SCR, and then from the T2 pole of the bidirectional thyristor SCR to the resistor R6 and the N terminal of the AC power supply; It is characterized in that, It also includes a power adjustment circuit and an automatic power-off circuit; The power adjustment circuit includes: Resistor R5, connected between the T1 pole and the G pole of the bidirectional thyristor SCR; Triode BG2, with its base connected to the touch switch S, its collector connected to the positive pole of the diode D3, its emitter grounded, the negative pole of the diode D3 connected to the output terminal of the power supply circuit, and a step cyclic relay K connected in parallel on both sides; A capacitor bank, having capacitors C4, C5, and C6 connected in series between the G pole of the bidirectional thyristor SCR and the normally open contact J5-1 of the relay J5. The normally open contact J3-1 of the relay J3 grounded is connected between C4 and C5, and the normally open contact J4-1 of the relay J4 grounded is connected between C5 and C6. One end of the normally open contact J5-1 is grounded; A relay group, having relays J3, J4, and J5. Relay J3 is connected in series with the normally open contact K1, relay J4 is connected in series with the normally open contact K2, and relay J5 is connected in series with the normally open contact K3. The three are connected in parallel between the output terminal of the power supply circuit and the ground terminal; The automatic power-off circuit includes: Integrated circuit IC2, its pin 1 is respectively connected to pin 2 of the integrated circuit IC3 and the negative pole of the diode D6, its pin 2 is respectively connected to the negative pole of the diode D5, the positive pole of the capacitor C8 and C8's negative pole is grounded, and is connected to the resistor R7 and then grounded, its pin 3 is respectively connected to the resistor R8 and then grounded, and is connected to the potentiometer RP1 and then connected to the output terminal of the power supply circuit, its pin 4 is grounded, its pin 5 is respectively connected to the positive pole of the diode D6 and pin 6 of the integrated circuit IC3, its pin 6 is respectively connected to the potentiometer RP2 and then grounded, and is connected to the resistor R9 and then connected to the output terminal of the power supply circuit, its pin 8 is connected to the output terminal of the power supply circuit; The positive pole of the capacitor C7 is respectively connected to the positive pole of the diode D5 and the negative pole of the diode D4 and the positive pole of the diode D4 is grounded, and the negative pole is connected between the resistor R6 and the T2 pole of the bidirectional thyristor SCR; Integrated circuit IC3, its pin 1 is grounded, its pin 3 is connected to the base of the triode BG3 after being connected to the resistor R10, its pin 4 and pin 8 are commonly connected to the output terminal of the power supply circuit, its pin 5 is connected to the capacitor C10 and then grounded, its pin 6 and pin 7 are commonly connected and then respectively connected to the positive pole of the capacitor C9 and the negative pole of the capacitor C9 is grounded, and is connected to the potentiometer RP3 and then connected to the output terminal of the power supply circuit; Triode BG3, with its collector connected to the positive pole of the diode D2, its emitter grounded, the negative pole of the diode D2 connected to the output terminal of the power supply circuit, and a relay J2 connected in parallel on both sides; The normally open contact J2-1 of the relay J2 is connected in parallel with the main switch SB.

2. The adjustable power socket control circuit according to claim 1, wherein Pin 7 of the integrated circuit IC2 is connected to the base of the triode BG4 through the resistor R11; The collector of the triode BG4 is successively connected to the buzzer SW and the output terminal of the power supply circuit, and the emitter is grounded.

3. The adjustable power socket control circuit according to claim 2, wherein The power adjustment circuit further includes: light-emitting diodes LED2, LED3, and LED4; The negative electrode of the light-emitting diode LED2 is grounded, and the positive electrode is first connected to the normally open contacts J3-2, J4-2, and J5-2 in parallel and then connected to the output end of the power supply circuit; The negative electrode of the light-emitting diode LED3 is grounded, and the positive electrode is first connected to J4-3 and J5-3 in parallel and then connected to the output end of the power supply circuit; The negative electrode of the light-emitting diode LED4 is grounded, and the positive electrode is first connected to J5-4 and then connected to the output end of the power supply circuit.

4. An adjustable power socket control circuit according to claim 3, characterized in that, The power supply circuit includes: A transformer B1, with terminal 1 connected to the main switch SB, terminal 2 connected to the N terminal of the AC power supply, terminal 3 connected to pin 1 of the rectifier stack UR, and terminal 4 connected to pin 2 of the rectifier stack UR; An integrated circuit IC1, with pin 1 connected to pin 3 of the rectifier stack UR, pin 2 grounded, and pin 3 as the output terminal; A capacitor bank, having a capacitor C1 with the positive electrode connected to pin 1 of the integrated circuit IC1 and the negative electrode grounded, and a capacitor C2 with the positive electrode connected to pin 3 of the integrated circuit IC1 and the negative electrode grounded; Pin 4 of the rectifier stack UR is grounded.

5. The socket control circuit with adjustable power according to claim 4, characterized in that, The power supply circuit further includes a light-emitting diode LED1; The positive electrode of the light-emitting diode LED1 is connected to pin 3 of the integrated circuit IC1, and the negative electrode is grounded.

6. The adjustable power socket control circuit according to claim 5, wherein It further includes a remote control circuit; The remote control circuit includes: An infrared receiver IRX, with pin 1 grounded, and pin 2 connected to the positive electrode of the capacitor C3 and the negative electrode of the capacitor C3 grounded; A resistor group, having resistors R1, R2, R3, and R4. The resistor R1 is connected between the output end of the power supply circuit and pin 2 of the infrared receiver IRX, the resistor R2 is connected between the output end of the power supply circuit and pin 3 of the infrared receiver IRX, the resistor R3 is connected between pin 3 of the infrared receiver IRX and the base of the triode BG1, and the resistor R4 is connected between pin 2 of the infrared receiver IRX and the emitter of the triode BG1; A triode BG1, with the collector connected to the negative electrode of the diode D1, the positive electrode of the diode D1 grounded, and a relay J1 connected in parallel on both sides; The normally open contact J1-1 of the relay J1 is connected between the output end of the power supply circuit and the base of the triode BG2.

7. The adjustable power socket control circuit according to claim 6, characterized in that, It further includes a socket panel; The main switch SB, the infrared receiver IRX, the touch switch S, the power indicator light, the power intensity indicator lights, and the buzzer are all installed on the socket panel; Among them, the power indicator light is the light-emitting diode LRE1, and the power intensity indicator lights are the light-emitting diodes LED2, LED3, and LED4.

8. The adjustable power socket control circuit according to claim 6, characterized in that, The model of the integrated circuit IC1 is 7805, the integrated circuit IC2 is a voltage comparator, the model is LM393, the model of the integrated circuit IC3 is NE555, the models of the diodes D1-D6 are IN4007, the triode BG1 is a PNP transistor type, the model is 9013, the triode BG2 is an NPN transistor type, the model is 3DG12, the triode BG3 is an NPN transistor type, the model is 3DG12, the triode BG4 is an NPN transistor type, the model is 8050, the model of the bidirectional thyristor SCR is TLC336A, the model of the infrared receiver IRX is HS0038A2, and the model of the step-cycle relay K is ZS-401F.

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