Kinetic energy switch energy-saving circuit

Abstract

The utility model discloses an energy-saving circuit of a kinetic energy switch. The energy-saving circuit comprises a first interface, a second interface, a diode D1 and a switch controller, a first MOS tube and a second MOS tube; the first interface is connected with the grid electrode of the first MOS tube and the drain electrode of the second MOS tube; the drain electrode of the first MOS tube is connected with the grid electrode of the second MOS tube and the second interface; the source electrode of the first MOS tube is connected with the source electrode of the second MOS tube and is grounded; the positive electrode of the diode D1 is connected with the first interface P1 and the drain electrode of the first MOS tube; the negative electrode of the diode D1 is connected with a capacitor EC1 which is grounded. A pin 1 and a pin 2 of the switch controller are connected with an inductor L1; the pin 3 is connected with the resistor R4, the pin 4 and the pin 5 are connected with the negative electrode of the diode D1, and the pin 6 is grounded; the resistor R4 is connected with the inductor L1; two ends of the resistor R4 are connected in parallel with a capacitor C4; the inductor L is connected with the capacitor C5 and the inductor L2, and the inductor L2 is connected with the capacitor C6 and the VDD; and the capacitor C6 is connected with the capacitor C5 and grounded. According to the utility model, the energy utilization rate can be improved, and the problem of insufficient electric quantity is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit structure technical field, concretely related to a kinetic energy switch energy saving circuit. BACKGROUND

[0002] With the rise of intelligent lighting, wireless intelligent switch is more and more widely used in market. And kinetic energy switch gradually has the trend of replacing traditional wired and battery switch because of long service life without using battery and being recognized by market. The existing technology generally uses diode to realize rectification filtering of kinetic energy switch, and the problems of the scheme are: the energy utilization rate is low, and the power generation capacity of kinetic energy switch is insufficient. Therefore, how to develop a new structure of kinetic energy switch circuit can improve the energy utilization rate while meeting the rectification filtering of kinetic energy switch to overcome the above defects of prior art, which is the direction that the person skilled in the art needs to study. SUMMARY

[0003] The utility model discloses a kinetic energy switch energy saving circuit, which can improve the energy utilization rate and solve the problem of insufficient power generation capacity of kinetic energy switch.

[0004] The utility model discloses a kinetic energy switch energy saving circuit, which comprises:

[0005] First interface P1 and second interface P2, the first interface P1 and the second interface P2 are used for connecting kinetic energy generator respectively;

[0006] Double MOS pipe structure, the double MOS pipe structure includes first N type MOS pipe U21 and second N type MOS pipe U22, the first interface P1 is connected the gate of first N type MOS pipe U21 respectively, the drain of second N type MOS pipe U22, the drain of first N type MOS pipe U21 is connected the gate of second N type MOS pipe U22 and the second interface P2, the source of first N type MOS pipe U21 is connected the source of second N type MOS pipe U22 and ground;

[0007] Diode D1, the positive pole of diode D1 is connected first interface P1 and the drain of first N type MOS pipe U21 respectively, the negative pole of diode D1 is connected one end of electric capacity EC1, and the other end of electric capacity EC1 is grounded, and the both ends of electric capacity EC1 are also connected in parallel with electric capacity C3;

[0008] A switch controller U1 is adopted, a pin 1 of the switch controller U1 is connected to one end of an inductor L1, a pin 2 of the switch controller U1 is connected to the other end of the inductor L1, a pin 3 of the switch controller U1 is connected to one end of a resistor R4 and one end of a resistor R5, a pin 6 of the switch controller U1 is grounded, the other end of the resistor R4 is connected to the other end of the inductor L1, a capacitor C4 is connected in parallel between the resistor R4 and the inductor L1, the other end of the inductor L1 is connected to one end of a capacitor C5 and one end of an inductor L2, the other end of the inductor L2 is connected to one end of a capacitor C6 and VDD respectively, the other end of the capacitor C6 is connected to the other end of the capacitor C5 and the other end of the resistor R5 and grounded, the capacitor C6 is also connected in parallel with a capacitor C7.

[0009] By adopting the technical scheme, when the input waveform of the kinetic energy switch is positive, energy is stored in the positive electrode of the capacitor EC1 through the diode D1 from the first interface P1, at this time, the first N-type MOS tube U21 is turned on, and the negative electrode is turned on to the second interface P2 through the first N-type MOS tube U21. When the input waveform of the kinetic energy switch is negative, energy is stored in the positive electrode of the capacitor EC1 through the diode D1 from the second interface P1, at this time, the second N-type MOS tube U22 is turned on, and the negative electrode is turned on to the first interface P1 through the first N-type MOS tube U21. In the above process, the switch controller U1 converts the input of the kinetic energy switch into output power with constant current value. Therefore, the above scheme utilizes the cooperation of the first N-type MOS tube U21 and the second N-type MOS tube U22 to realize rectification and filtering of the kinetic energy switch when the output waveform of the kinetic energy switch is positive and negative respectively, thereby greatly improving the energy utilization rate compared with the traditional diode rectification and filtering structure, and further improving the problem of insufficient power generation of the kinetic energy switch in the prior art.

[0010] Preferably, further comprising:

[0011] A double-triode structure comprising a first NPN tube U31 and a second NPN tube U32;

[0012] The emitter of the first NPN tube U31 is connected to the negative electrode of the capacitor EC1, one end of the resistor R2 and grounded respectively, the collector of the first NPN tube U31 is connected to the PIN port, and the base of the first NPN tube U31 is connected to the other end of the resistor R2 and one end of the resistor R1 respectively;

[0013] The emitter of the second NPN tube U32 is connected to the other end of the resistor R1 and one end of the capacitor C1 respectively, the collector of the second NPN tube U32 is connected to the base of the second NPN tube U32 and the first interface P1 respectively, and the other end of the capacitor C1 is grounded;

[0014] The positive pole of the second interface P2 and the diode D1 is also connected to the positive pole of a diode D2, the negative pole of the diode D2 is respectively connected to one end of a capacitor C2, one end of a resistor R3 and the gate of an N-type MOS tube Q1; the other end of the capacitor C2 is grounded; the other end of the resistor R3 is grounded; the source of the N-type MOS tube Q1 is grounded; the drain of the N-type MOS tube Q1 is connected to one end of a resistor R6, and the other end of the resistor R6 is connected to VDD.

[0015] By adopting the technical scheme, the double-triode structure is arranged to realize polarity detection, and the PIN1 pin is pulled low when the input waveform of the kinetic energy switch is positive, so that the polarity detection is realized. Further, it can be judged whether the generator is in a pressed state or a released state. The inductor L2 and the capacitor C6 jointly constitute a filter circuit and realize filtering. The diode D2 and the N-type MOS tube Q1 jointly constitute a power input positive and negative detection circuit, and the N-type MOS tube Q1 is turned on when the input waveform of the kinetic energy switch is negative, and at this time, the drain of the N-type MOS tube Q1 outputs a low level.

[0016] Preferably, the diode D1 adopts BAT854CW.

[0017] Preferably, the diode D2 adopts BAT54H.

[0018] Preferably, the inductance value of the inductor L1 is 22uH, the inductance value of the inductor L2 is 10uH, the resistance value of the resistor R1 is 1MΩ, the resistance value of the resistor R2 is 1MΩ, the resistance value of the resistor R3 is 1MΩ, the resistance value of the resistor R4 is 300kΩ, and the resistance value of the resistor R5 is 240kΩ.

[0019] Compared with the prior art, the utility model has the following technical advantages:

[0020] Firstly, the utility model discloses a double-MOS tube structure which can rectify the kinetic energy switch in a full cycle, thereby improving the energy utilization rate and solving the problem of insufficient power generation of the kinetic energy switch.

[0021] Secondly, the utility model can check the model of the kinetic energy switch and judge whether the kinetic energy switch is in a pressed state or a released state.

[0022] Finally, the utility model is composed of MOS tubes, triodes and other common elements, and has a simple structure and is easy to prepare. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the embodiment 1. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below with specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present application. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in the present specification based on different views and applications without departing from the spirit of the present application.

[0025] Embodiment 1, please refer to Figure 1 :

[0026] A kinetic energy switch energy-saving circuit, comprising: a first interface P1, a second interface P2, a double MOS tube structure, a diode D1, a switch controller U1, a double triode structure. Wherein,

[0027] The first interface P1 and the second interface P2 are used for connecting the kinetic energy generator respectively.

[0028] The double MOS tube structure comprises a first N-type MOS tube U21 and a second N-type MOS tube U22; the first interface P1 is connected with the gate of the first N-type MOS tube U21 and the drain of the second N-type MOS tube U22 respectively; the drain of the first N-type MOS tube U21 is connected with the gate of the second N-type MOS tube U22 and the second interface P2; the source of the first N-type MOS tube U21 is connected with the source of the second N-type MOS tube U22 and grounded; the diode D1 adopts BAT854CW, which is a common cathode Schottky diode. The anode of the diode D1 is connected with the first interface P1 and the drain of the first N-type MOS tube U21 respectively; the cathode of the diode D1 is connected with one end of a capacitor EC1, and the other end of the capacitor EC1 is grounded; the two ends of the capacitor EC1 are also connected with a capacitor C3 in parallel;

[0029] The switch controller U1 specifically adopts TPS62122, the pin 1 of which is connected with one end of an inductor L1, the pin 2 of which is connected with the other end of the inductor L1; the pin 3 of which is connected with one end of a resistor R4 and one end of a resistor R5, the pin 4 and the pin 5 of which are connected with the cathode of the diode D1 respectively, and the pin 6 of which is grounded; the other end of the resistor R4 is connected with the other end of the inductor L1; the two ends of the resistor R4 are connected with a capacitor C4 in parallel; the other end of the inductor L1 is also connected with one end of a capacitor C5 and one end of an inductor L2, and the other end of the inductor L2 is connected with one end of a capacitor C6 and VDD respectively; the other end of the capacitor C6 is connected with the other end of the capacitor C5 and the other end of the resistor R5 and grounded; the two ends of the capacitor C6 are also connected with a capacitor C7 in parallel. Wherein: the pin 1 is the drain of the built-in MOS, which together with the inductor L1 constitutes the BUCK output; the pin 2 is the output pin; the pin 3 is used for outputting voltage detection to determine the voltage value of the output.

[0030] The double triode structure comprises a first NPN tube U31 and a second NPN tube U32;

[0031] The emitter of the first NPN tube U31 is connected with the negative pole of the capacitor C1, one end of the resistor R2 and the ground, the collector of the first NPN tube U31 is connected with the PIN port, and the base of the first NPN tube U31 is connected with the other end of the resistor R2 and one end of the resistor R1.

[0032] The emitter of the second NPN tube U32 is connected with the other end of the resistor R1 and one end of the capacitor C1, the collector of the second NPN tube U32 is connected with the base of the second NPN tube U32 and the first port P1, the other end of the capacitor C1 is connected with the ground, and the diode D2 is BAT54H. The second port P2 and the positive pole of the diode D1 are also connected with the positive pole of the diode D2, the negative pole of the diode D2 is connected with one end of the capacitor C2, one end of the resistor R3 and the gate of the N-type MOS tube Q1, the other end of the capacitor C2 is connected with the ground, the other end of the resistor R3 is connected with the ground, the source of the N-type MOS tube Q1 is connected with the ground, one end of the resistor R6 is connected with the drain of the N-type MOS tube Q1, and the other end of the resistor R6 is connected with VDD.

[0033] In this example, the inductive reactance of the inductor L1 is 22uH, the inductive reactance of the inductor L2 is 10uH, the resistance of the resistor R1 is 1MΩ, the resistance of the resistor R2 is 1MΩ, the resistance of the resistor R3 is 1MΩ, the resistance of the resistor R4 is 300kΩ, and the resistance of the resistor R5 is 240kΩ.

[0034] In practice, the working process is as follows:

[0035] When the input waveform of the kinetic energy switch is positive, energy is stored in the positive electrode of the capacitor EC1 by the first interface P1 through the diode D1, at this time the first N-type MOS tube U21 is turned on, the negative electrode is turned on to the second interface P2 through the first N-type MOS tube U21. When the input waveform of the kinetic energy switch is negative, energy is stored in the positive electrode of the capacitor EC1 by the second interface P1 through the diode D1, at this time the second N-type MOS tube U22 is turned on, the negative electrode is turned on to the first interface P1 through the first N-type MOS tube U21. In the above process, the input of the kinetic energy switch is converted into a current value constant output power supply by the switch controller U1. Therefore, the above scheme uses the cooperation of the first N-type MOS tube U21 and the second N-type MOS tube U22 to realize the rectification and filtering of the kinetic energy switch when the output waveform of the kinetic energy switch is positive and negative, respectively, thereby greatly improving the energy utilization rate compared with the traditional diode rectification and filtering structure, and thereby improving the problem of insufficient power generation of the kinetic energy switch in the prior art. In the above process: the double triode structure is provided to realize polarity detection, when the input waveform of the kinetic energy switch is positive, the PIN1 pin is pulled low, thereby realizing polarity detection. And it can be judged whether the generator is in the pressed state or the released state. The inductor L2 and the capacitor C6 together constitute a filter circuit to realize filtering. The diode D2 and the N-type MOS tube Q1 together constitute a power input positive and negative detection circuit, when the input waveform of the kinetic energy switch is negative, the N-type MOS tube Q1 is turned on, at this time the drain of the N-type MOS tube Q1 outputs low level.

[0036] The embodiments of the utility model are described in detail above in combination with various drawings, but the utility model is not limited to the above-mentioned embodiments. Even if various changes are made to the utility model, if the changes belong to the scope of the utility model claims and equivalent technologies, they still fall within the protection scope of the utility model.

Claims

1. A kinetic energy switch energy saving circuit, characterized by, Comprise: First interface P1 and second interface P2, the first interface P1 and the second interface P2 are used to connect the kinetic energy generator respectively; Double MOS structure, the double MOS structure comprises a first N type MOS U21 and a second N type MOS U22;The first interface P1 is connected to the gate of the first N type MOS U21, the drain of the second N type MOS U22 respectively;The drain of the first N type MOS U21 is connected to the gate of the second N type MOS U22 and the second interface P2;The source of the first N type MOS U21 is connected to the source of the second N type MOS U22 and ground; Diode D1, the anode of diode D1 is connected to the first interface P1 and the drain of the first N type MOS U21 respectively;The negative pole of diode D1 is connected to one end of capacitor EC1, and the other end of capacitor EC1 is grounded;The two ends of the capacitor EC1 are also connected in parallel with the capacitor C3; Switching controller U1, the switching controller U1 adopts TPS62122, pin 1 is connected to one end of inductor L1, pin 2 is connected to the other end of the inductor L1;Pin 3 is connected to one end of resistor R4 and one end of resistor R5, pin 4, pin 5 are connected to the negative pole of the diode D1 respectively, pin 6 is grounded;The other end of the resistor R4 is connected to the other end of the inductor L1;The resistor R4 is connected in parallel with the capacitor C4 across its terminals;The other end of the inductor L1 is also connected to one end of capacitor C5 and one end of inductor L2, the other end of the inductor L2 is connected to one end of capacitor C6 and VDD respectively;The other end of the capacitor C6 is connected to the other end of the capacitor C5 and the other end of the resistor R5 and grounded;The two ends of the capacitor C6 are also connected in parallel with the capacitor C7.

2. The kinetic energy switch power circuit of claim 1, wherein, Also comprise: Double triode structure, the double triode structure comprises a first NPN tube U31 and a second NPN tube U32; The emitter of the first NPN tube U31 is connected to the negative pole of the capacitor EC1, one end of resistor R2 and ground respectively, the collector of the first NPN tube U31 is connected to PIN, the base of the first NPN tube U31 is connected to the other end of the resistor R2 and one end of resistor R1 respectively; The emitter of the second NPN tube U32 is connected to the other end of the resistor R1 and one end of capacitor C1 respectively;The collector of the second NPN tube U32 is connected to the base of the second NPN tube U32 and the first interface P1 respectively;The other end of the capacitor C1 is grounded; The second interface P2 and the anode of the diode D1 are also connected to the anode of the diode D2, the negative pole of the diode D2 is connected to one end of capacitor C2, one end of resistor R3 and the gate of N type MOS Q1 respectively;The other end of the capacitor C2 is grounded;The other end of the resistor R3 is grounded;The source of the N type MOS Q1 is grounded;The drain of the N type MOS Q1 is connected to one end of resistor R6, and the other end of the resistor R6 is connected to VDD.

3. The kinetic energy switch circuit according to claim 2, wherein the diode D1 is BAT854CW.

4. The kinetic energy switch circuit according to claim 3, wherein the diode D2 is BAT54H.

5. The kinetic energy switch circuit according to claim 4, wherein the inductance L1 is 22uH, the inductance L2 is 10uH; the resistance R1 is 1MΩ, the resistance R2 is 1MΩ, the resistance R3 is 1MΩ, the resistance R4 is 300kΩ, and the resistance R5 is 240kΩ. ​ ​ ​ ​

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