Linkage control circuit with adjustable induction power and delay time

Abstract

The utility model discloses a linkage control circuit with adjustable induction power and delay time. The linkage control circuit comprises a power supply circuit, a detection sampling circuit, a reference voltage circuit, a delay adjusting circuit, an IC circuit, an LED conversion circuit and an execution circuit, wherein the power supply circuit is connected with the detection sampling circuit and is used for supplying power to the linkage control circuit; the detection sampling circuit is connected with the IC circuit and is used for amplifying the sampling voltage; the IC circuit is connected with the reference voltage circuit and the delay adjusting circuit, and is used for comparing the amplified voltage with the reference voltage for delay amplification output; the LED conversion circuit is connected with the reference voltage circuit and the delay adjusting circuit and is used for controlling LED conversion according to an output result of the reference voltage circuit; and the execution circuit is connected with the reference voltage circuit and the delay adjusting circuit and is used for controlling a relay switch according to an output result of the reference voltage circuit so as to realize controlled automatic power-on and power-off. The linkage equipment can be controlled at the same time, operation is convenient, and cost is saved.

Description

A linkage control circuit with adjustable sensing power and delay time Technical Field

[0001] This utility model relates to the field of electronic technology, and in particular to a linkage control circuit with adjustable sensing power and delay time. Background Technology

[0002] In production and processing, it is often necessary to use two types of equipment simultaneously. For example, when using a water drill to drill holes, a water pump needs to be turned on simultaneously to flush the water; when using a grooving machine to groove, a vacuum cleaner needs to be turned on simultaneously to remove dust; and when using a stone cutting machine to cut stone, a water pump needs to be turned on simultaneously to rinse the saw blade and cool the stone, as well as remove dust. However, the process requires starting one piece of equipment, such as the water drill, first, and then starting the other, such as the water pump, to begin processing. This is not only cumbersome but also wastes water and electricity. Therefore, it is necessary to design a linkage control circuit with adjustable sensing power and delay time to overcome these problems. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a linkage control circuit with adjustable sensing power and delay time to control multiple devices in a coordinated manner, thereby achieving the goals of convenient use and cost savings.

[0004] This utility model is implemented as follows:

[0005] An adjustable linkage control circuit with adjustable sensing power and delay time includes a power supply circuit, a detection and sampling circuit, a reference voltage circuit, a delay adjustment circuit, an IC circuit, an LED conversion circuit, and an execution circuit. The power supply circuit is connected to the detection and sampling circuit to supply power to the linkage control circuit. The detection and sampling circuit is connected to the IC circuit to amplify the sampled voltage. The IC circuit is connected to the reference voltage circuit and the delay adjustment circuit to compare the amplified voltage with the reference voltage and then delay and amplify the output. The LED conversion circuit is connected to the reference voltage circuit and the delay adjustment circuit to control LED conversion based on the output of the reference voltage circuit. The execution circuit is connected to the reference voltage circuit and the delay adjustment circuit to control a relay switch based on the output of the reference voltage circuit, achieving controlled automatic power-on and power-off.

[0006] Furthermore, the power supply circuit includes a semi-rectifier filter circuit, an IC step-down circuit, and a voltage regulator circuit, forming an input voltage of 90~264V and an output voltage of 12V, 100mA low-voltage DC power supply circuit.

[0007] Furthermore, a half-wave rectifier circuit is formed by rectifier diode D1 and capacitor U3; a low-voltage DC power supply circuit with an input voltage of 90~264V and an output voltage of 12V and 100mA is formed by buck module U7, current limiting resistor R1, freewheeling diode D4, energy storage inductor L1, Zener diode D2, Zener diode D3, and filter capacitor C2.

[0008] Furthermore, the sampling circuit consists of a sampling inductor, a rectifier-filter-regulator circuit, and a sampling adjustment circuit.

[0009] Furthermore, the rectifier-filter-regulator circuit consists of switching diodes D5, D6, D7, and D8, capacitor C6, and Zener diode D9.

[0010] Furthermore, the sampling adjustment circuit consists of resistors R7 and R14, and an adjustable potentiometer R11.

[0011] Furthermore, the delay adjustment circuit consists of transistor Q3, adjustable resistor R8, and capacitor C5, and can be adjusted arbitrarily from 0 to 60 seconds.

[0012] Furthermore, the LED conversion circuit consists of a bicolor diode LED1, a transistor Q2, and a resistor R5. This invention has the following beneficial effects:

[0013] This invention utilizes a detection and adjustment circuit, a reference voltage circuit, a comparison and amplification circuit, a delay adjustment circuit, an LED conversion circuit, and a relay, all arranged between the active device circuit and the linkage device circuit. When the active device is started, the relay connects to the linkage device circuit via an optical integrated circuit and a transistor, enabling both devices to start simultaneously. When the active device is shut down, the secondary control device shuts down simultaneously or after a delay, thus disconnecting the linkage device circuit from the relay. This design is convenient to operate and offers advantages such as water conservation, energy saving, and labor saving. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a block diagram of a linkage control circuit with adjustable sensing power and delay time provided in an embodiment of the present invention;

[0016] Figure 2 is a detailed circuit diagram of a linkage control circuit with adjustable sensing power and delay time provided in an embodiment of this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] As shown in Figures 1 and 2, this embodiment of the present invention provides a linkage control circuit with adjustable sensing power and delay time, including a power supply circuit, a detection and sampling circuit, a reference voltage circuit, a delay adjustment circuit, an IC circuit, an LED conversion circuit, and an execution circuit; wherein: the power supply circuit is connected to the detection and sampling circuit to supply power to the linkage control circuit; the detection and sampling circuit is connected to the IC circuit to amplify the sampled voltage; the IC circuit is connected to the reference voltage circuit and the delay adjustment circuit to compare the amplified voltage with the reference voltage and then delay and amplify the output; the LED conversion circuit is connected to the reference voltage circuit and the delay adjustment circuit to control the LED conversion according to the output result of the reference voltage circuit; the execution circuit is connected to the reference voltage circuit and the delay adjustment circuit to control the relay switch according to the output result of the reference voltage circuit, thereby realizing controlled automatic power-on and power-off.

[0019] In some preferred embodiments, the power supply circuit includes a semi-rectifier filter circuit, an IC step-down circuit, and a voltage regulator circuit, forming a low-voltage DC power supply circuit with an input voltage of 90~264V and an output voltage of 12V and 100mA.

[0020] In some preferred embodiments, a half-wave rectifier circuit is formed by rectifier diode D1 and capacitor U3; and a low-voltage DC power supply circuit with an input voltage of 90~264V and an output voltage of 12V and 100mA is formed by buck module U7, current limiting resistor R1, freewheeling diode D4, energy storage inductor L1, Zener diode D2, Zener diode D3, and filter capacitor C2.

[0021] Specifically, in this embodiment, the power input terminal U4 is split into two paths. One path goes to the power supply section to generate 12V to power the amplifier circuit, delay adjustment circuit, indicator circuit, and execution circuit. The other path goes through L4 to the main control terminal to power the main control terminal.

[0022] In some embodiments, the sampling circuit comprises a sampling inductor, a rectifier-filter-regulator circuit, and a sampling adjustment circuit. Specifically, the rectifier-filter-regulator circuit comprises switching diodes D5, D6, D7, and D8, a capacitor C6, and a Zener diode D9. The sampling adjustment circuit comprises resistors R7 and R14, and an adjustable potentiometer R11.

[0023] Specifically, L4 is a current sampling inductor. When the main device is working, there is current flowing through the middle wire of L4 (minimum main control power 8W), there is an induced electromotive force at both ends of L4. After being rectified by the full-bridge switch D5-D6-D7-D8 and filtered by C6, a DC voltage proportional to the main control current is obtained. The maximum level is limited to 5V by the voltage regulator D9, and then goes to the sampling adjustment circuit R14, R11, R7. The voltage level is adjusted by R11 and then amplified by the IC circuit.

[0024] When the sampled voltage is higher than the reference voltage, the operational IC outputs a high level, the execution circuit Q2 conducts, relay K1 is energized, the secondary controller starts working, and the green light illuminates. Simultaneously, Q3 conducts, charging the capacitor via R9 in preparation for a shutdown delay. When the sampled voltage is lower than the reference voltage, the operational IC outputs a low level, the execution circuit stops, relay K1 opens, the red light illuminates, and the secondary controller stops working. Simultaneously, Q3 cuts off, and the voltage on C5 discharges the capacitor via R8. Adjusting R8 changes the piezoelectric time, which corresponds to the delay time.

[0025] In some embodiments, the delay adjustment circuit consists of a transistor Q3, an adjustable resistor R8, and a capacitor C5. The delay adjustment circuit enables arbitrary adjustment from 0 to 60 seconds. Specifically, adjusting R8 changes the piezoelectric time, which is the delay time.

[0026] In some embodiments, the LED conversion circuit consists of a bicolor diode LED1, a transistor Q2, and a resistor R5.

[0027] To better understand this embodiment, the circuit principle disclosed in this utility model is described in detail, as shown in Figure 2:

[0028] The power input terminal U4 is split into two paths. One path is current-limited by R10, rectified and filtered by D1, and then fed to the WD5202 chip along with external circuitry R1, D4, L1, D2, D3, and C2 to form a green switching power supply with a maximum power of 1.2W, an operating voltage of 12V, and an operating current of 100mA. The power supply section generates a 12V booster circuit operating voltage. The other path goes through L4 to the main control terminal. L4 is a current sampling inductor. When the main device is operating, current flows through the middle wire of L4 (minimum main control power 8W), an induced electromotive force is generated across L4. This electromotive force is rectified by the full-bridge switching diodes D5-D6-D7-D8, filtered by C6, and a DC voltage proportional to the main control current is obtained. The voltage is then regulated by D9 to a maximum level of 5V, and then fed to the sampling adjustment circuits R14, R11, and R7. R11 adjusts the voltage level to pin 3 of the amplifier, and the amplifier outputs voltage to pin 2. The reference voltage (composed of R2, D10, and D11) is compared and amplified at pin 1. When the sampled voltage is higher than the reference voltage, the operational IC outputs a high level at pin 8, which passes through R13, D13, and R12 to Q2, turning on relay K1 and activating the secondary control. Simultaneously, the green light illuminates at Q2 via R6, and Q3 conducts through R9, charging the capacitor in preparation for a shutdown delay. When the sampled voltage is lower than the reference voltage, the operational IC outputs a low level, cutting off the execution circuit. Relay K1 disconnects, and the red light illuminates via R5, stopping the secondary control. At the same time, Q3 is cut off, and the voltage on C5 discharges the capacitor via R8 and pin 5 of U1.2. Adjusting R8 changes the piezoelectric time, which is the delay time. After a period of discharge, when the voltage at pin 6 of U1.2 is lower than the reference voltage at pin 5, pin 7 of U1.2 outputs a low level, cutting off Q1 and stopping the delay.

[0029] When the main controller is working, pin 5 of U1 is at a high level of 12V, pin 6 is at a reference voltage of 1.4V, pin 1 is at a high level, and D12 is a unidirectional conducting diode. When the main controller is not working, pin 8 of U1 is at a low level, and D13 is cut off to prevent pin 8 from malfunctioning. During the delay, D12 conducts, Q1 conducts, the relay is activated, the red diode is turned off at a low level, and Q2 conducts to light up the green light.

[0030] This embodiment, by setting up a detection and adjustment circuit, a reference voltage circuit, a comparison and amplification circuit, a delay adjustment circuit, an LED conversion circuit, and a relay between the active device circuit and the linkage device circuit, enables the relay to connect to the linkage device circuit through the conduction of the optical integrated circuit and the transistor when the active device is started, so that the two devices can start working together. When the active device is turned off, the secondary control device is turned off at the same time or after a delay, so that the relay disconnects the linkage device circuit. This is convenient to operate and has the advantages of saving water, electricity, and manpower.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A linkage control circuit with adjustable sensing power and delay time, characterized in that, It includes a power supply circuit, a detection and sampling circuit, a reference voltage circuit, a delay adjustment circuit, an IC circuit, an LED conversion circuit, and an execution circuit; wherein: the power supply circuit is connected to the detection and sampling circuit to supply power to the linkage control circuit; the detection and sampling circuit is connected to the IC circuit to amplify the sampled voltage; the IC circuit is connected to the reference voltage circuit and the delay adjustment circuit to compare the amplified voltage with the reference voltage and then delay and amplify the output; the LED conversion circuit is connected to the reference voltage circuit and the delay adjustment circuit to control the LED conversion according to the output result of the reference voltage circuit; the execution circuit is connected to the reference voltage circuit and the delay adjustment circuit to control the relay switch according to the output result of the reference voltage circuit to realize controlled automatic power-on and power-off.

2. The inductive power and time delay adjustable linkage control circuit according to claim 1, wherein, The power supply circuit includes a semi-rectifier filter circuit, an IC step-down circuit, and a voltage regulator circuit, forming a low-voltage DC power supply circuit with an input voltage of 90~264V and an output voltage of 12V and 100mA.

3. The linkage control circuit with adjustable sensing power and delay time as described in claim 2, characterized in that, A half-wave rectifier circuit is composed of rectifier diode D1 and capacitor U3; a low-voltage DC power supply circuit with an input voltage of 90~264V and an output voltage of 12V and 100mA is composed of buck module U7, current limiting resistor R1, freewheeling diode D4, energy storage inductor L1, Zener diode D2, Zener diode D3, and filter capacitor C2.

4. The linkage control circuit with adjustable sensing power and delay time as described in claim 1, characterized in that, The sampling circuit consists of a sampling inductor, a rectifier, filter, and voltage regulator circuit, and a sampling adjustment circuit.

5. The linkage control circuit with adjustable sensing power and delay time as described in claim 4, characterized in that, The rectifier, filter and voltage regulator circuit consists of switching diodes D5, D6, D7, D8, capacitor C6, and Zener diode D9.

6. The linkage control circuit with adjustable sensing power and delay time as described in claim 4, characterized in that, The sampling adjustment circuit consists of resistors R7 and R14, and an adjustable potentiometer R11.

7. The linkage control circuit with adjustable sensing power and delay time as described in claim 1, characterized in that, The delay adjustment circuit consists of transistor Q3, adjustable resistor R8, and capacitor C5, and can be adjusted arbitrarily from 0 to 60 seconds.

8. The linkage control circuit with adjustable sensing power and delay time as described in claim 1, characterized in that, The LED conversion circuit consists of a bicolor diode LED1, a transistor Q2, and a resistor R5.

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