CN204361765U - A kind of intelligent watch wireless charging system - Google Patents

Abstract

The utility model discloses a kind of intelligent watch wireless charging system, comprise radio energy transtation mission circuit and radio energy receiving circuit, radio energy transtation mission circuit comprises transformer T, switch S 1, three terminal regulator U1, chip U2, relay K and inductance L 4, and radio energy receiving circuit comprises inductance L 5, rectifier bridge Q, TL431 and chip U3.The utility model intelligent watch wireless charging system is by improving radio energy receiving circuit and radio energy transtation mission circuit, not only make circuit structure simple, volume is little, and improves transfer ratio and the charging rate of electric energy, is applicable to very much to intelligent watch wireless charging.

Description

A kind of intelligent watch wireless charging system

Technical field

The utility model relates to a kind of charging system, specifically a kind of intelligent watch wireless charging system.

Background technology

Radiotechnics is used for communication, popular nearly 100 years in the whole world, from radio broadcasting originally and radiotelegram, develop into present satellite and microwave communication, and spread to the mobile communication of global almost each individual, wireless network, GPS etc., radio communication greatly changes production and the life style of people, there is no radio communication, the target of informationized society can not be discussed, but, what radio communication transmitted is all faint information, instead of the energy that power is larger, therefore many portable mobile products extremely easy to use, all to connect electrical network aperiodically to charge, also therefore have to leave various socket and stube cable, this is just difficult to the sealing technology realizing having water resistance, and the cable of this personalization that the charger of different product is difficult to is general, if thoroughly remove these tails, mobile terminal device just can obtain real freedom, also be easy to realize sealing and waterproof, this target necessarily requires energy also as information, to realize wireless transmission, the transmission of energy is obviously different with the transmission requirement of signal, the latter requires the complete and true of its content, not too require efficiency, and the former is required of power efficiency, although the idea of the Wireless transceiver of energy is had it long ago, but because this bottleneck of efficiency cannot be broken through always, make it can not enter practical field always, along with popularizing of smart machine, wireless charging especially gets more and more people's extensive concerning.

Utility model content

The purpose of this utility model is the intelligent watch wireless charging system providing a kind of electric energy conversion rate high, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

A kind of intelligent watch wireless charging system, comprise radio energy transtation mission circuit and radio energy receiving circuit, it is characterized in that, described radio energy transtation mission circuit comprises transformer T, switch S 1, three terminal regulator U1, chip U2, relay K and inductance L 4, and described radio energy receiving circuit comprises inductance L 5, rectifier bridge Q, TL431 and chip U3.

In described radio energy transtation mission circuit, described switch S 1 one end connects 220V alternating current, switch S 1 other end connection transformer T1 coil L1, the transformer T1 coil L1 other end connects the 220V alternating current other end, transformer T1 coil L2 one end connects diode D1 positive pole, diode D1 negative pole connects relay K coil respectively, relay K contact switch K-1 pin 2, diode D2 negative pole and electric capacity C1, relay K coil other end connecting luminous diode D3 positive pole, light-emitting diode D3 negative pole connects the electric capacity C1 other end respectively, the transformer T1 coil L2 other end and transformer T1 coil L3 ground connection, the transformer T1 coil L3 other end connects diode D2 positive pole, described relay K contact switch K-1 pin 1 connects batteries E1 positive pole, batteries E1 minus earth, described relay K contact switch K-1 pin 3 connects electric capacity C2 respectively, three terminal regulator U1 pin 2 and fuse FU, three terminal regulator U1 pin 1 connects the electric capacity C2 other end and ground connection, three terminal regulator U1 pin 3 connects chip U2 pin 6 and electric capacity C4 respectively, the electric capacity C4 other end connects electric capacity C5 and ground connection, the electric capacity C5 other end connects the fuse FU other end respectively, electric capacity C6 and inductance L 4, inductance L 4 other end connects the D pole of the electric capacity C6 other end and metal-oxide-semiconductor VS respectively, the S pole of metal-oxide-semiconductor VS connects diode D4 positive pole and ground connection, diode D4 negative pole is contact resistance R1 respectively, the G pole of electric capacity C7 and metal-oxide-semiconductor VS, the electric capacity C7 other end is the contact resistance R1 other end and chip U2 pin 11 respectively, chip U2 pin 5 ground connection, chip U2 pin 3 connects potentiometer RP1, the potentiometer RP1 other end connects potentiometer RP1 slide plate respectively, chip U2 pin 1 and electric capacity C3, the electric capacity C3 other end connects chip U2 pin 7.

In described radio energy receiving circuit, described inductance L 5 two ends connect rectifier bridge Q pin 1 and pin 3 respectively, rectifier bridge Q pin 4 connects electric capacity C9 and ground connection, rectifier bridge Q pin 2 connects the electric capacity C9 other end respectively, ground capacity C8, resistance R2, resistance R3, triode VT1 emitter, light-emitting diode D6 positive pole and resistance R6, the resistance R2 other end connects potentiometer RP2 respectively, the K pole of TL431 and resistance R9, the A pole of TL431 connects the potentiometer RP2 other end and ground connection, the R pole of TL431 connects potentiometer RP2 slide plate, the described resistance R9 other end connects chip U3 pin 3, chip U3 pin 2 contact resistance R8, the resistance R8 other end connects batteries E2 positive pole and triode VT3 collector electrode respectively, batteries E2 minus earth, the described triode VT3 emitter contact resistance R6 other end, triode VT3 base stage is connecting luminous diode D6 negative pole and resistance R5 respectively, resistance R5 other end connecting triode VT2 collector electrode, triode VT2 grounded emitter, triode VT2 base stage contact resistance R7, the resistance R7 other end connects chip U3 pin 6 and resistance R4 respectively, the resistance R4 other end is the contact resistance R3 other end and triode VT1 base stage respectively, triode VT1 collector electrode connects ground connection light-emitting diode D5 positive pole, described chip U3 pin 4 ground connection, chip U3 pin 7 connects power supply VCC, described chip U2 model is CD4069, described chip U3 model is OPA335.

As the utility model further scheme: described three terminal regulator U1 model is 7805.

Compared with prior art, the beneficial effects of the utility model are: the utility model intelligent watch wireless charging system is by improving radio energy receiving circuit and radio energy transtation mission circuit, not only make circuit structure simple, volume is little, and improve transfer ratio and the charging rate of electric energy, be applicable to very much to intelligent watch wireless charging.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of radio energy transtation mission circuit in intelligent watch wireless charging system;

Fig. 2 is the circuit diagram of radio energy receiving circuit in intelligent watch wireless charging system.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1 ~ 2, in the utility model embodiment, a kind of intelligent watch wireless charging system, comprise radio energy transtation mission circuit and radio energy receiving circuit, radio energy transtation mission circuit comprises transformer T, switch S 1, three terminal regulator U1, chip U2, relay K and inductance L 4, and radio energy receiving circuit comprises inductance L 5, rectifier bridge Q, TL431 and chip U3.

In radio energy transtation mission circuit, switch S 1 one end connects 220V alternating current, switch S 1 other end connection transformer T1 coil L1, the transformer T1 coil L1 other end connects the 220V alternating current other end, transformer T1 coil L2 one end connects diode D1 positive pole, diode D1 negative pole connects relay K coil respectively, relay K contact switch K-1 pin 2, diode D2 negative pole and electric capacity C1, relay K coil other end connecting luminous diode D3 positive pole, light-emitting diode D3 negative pole connects the electric capacity C1 other end respectively, the transformer T1 coil L2 other end and transformer T1 coil L3 ground connection, the transformer T1 coil L3 other end connects diode D2 positive pole, relay K contact switch K-1 pin 1 connects batteries E1 positive pole, batteries E1 minus earth, relay K contact switch K-1 pin 3 connects electric capacity C2 respectively, three terminal regulator U1 pin 2 and fuse FU, three terminal regulator U1 pin 1 connects the electric capacity C2 other end and ground connection, three terminal regulator U1 pin 3 connects chip U2 pin 6 and electric capacity C4 respectively, the electric capacity C4 other end connects electric capacity C5 and ground connection, the electric capacity C5 other end connects the fuse FU other end respectively, electric capacity C6 and inductance L 4, inductance L 4 other end connects the D pole of the electric capacity C6 other end and metal-oxide-semiconductor VS respectively, the S pole of metal-oxide-semiconductor VS connects diode D4 positive pole and ground connection, diode D4 negative pole is contact resistance R1 respectively, the G pole of electric capacity C7 and metal-oxide-semiconductor VS, the electric capacity C7 other end is the contact resistance R1 other end and chip U2 pin 11 respectively, chip U2 pin 5 ground connection, chip U2 pin 3 connects potentiometer RP1, the potentiometer RP1 other end connects potentiometer RP1 slide plate respectively, chip U2 pin 1 and electric capacity C3, the electric capacity C3 other end connects chip U2 pin 7.

In radio energy receiving circuit, inductance L 5 two ends connect rectifier bridge Q pin 1 and pin 3 respectively, rectifier bridge Q pin 4 connects electric capacity C9 and ground connection, rectifier bridge Q pin 2 connects the electric capacity C9 other end respectively, ground capacity C8, resistance R2, resistance R3, triode VT1 emitter, light-emitting diode D6 positive pole and resistance R6, the resistance R2 other end connects potentiometer RP2 respectively, the K pole of TL431 and resistance R9, the A pole of TL431 connects the potentiometer RP2 other end and ground connection, the R pole of TL431 connects potentiometer RP2 slide plate, the resistance R9 other end connects chip U3 pin 3, chip U3 pin 2 contact resistance R8, the resistance R8 other end connects batteries E2 positive pole and triode VT3 collector electrode respectively, batteries E2 minus earth, the triode VT3 emitter contact resistance R6 other end, triode VT3 base stage is connecting luminous diode D6 negative pole and resistance R5 respectively, resistance R5 other end connecting triode VT2 collector electrode, triode VT2 grounded emitter, triode VT2 base stage contact resistance R7, the resistance R7 other end connects chip U3 pin 6 and resistance R4 respectively, the resistance R4 other end is the contact resistance R3 other end and triode VT1 base stage respectively, triode VT1 collector electrode connects ground connection light-emitting diode D5 positive pole, chip U3 pin 4 ground connection, chip U3 pin 7 connects power supply VCC, chip U2 model is CD4069, chip U3 model is OPA335.

Three terminal regulator U1 model is 7805.

Operation principle of the present utility model is: the power supply of radio energy transtation mission circuit has two kinds, 220V exchanges and batteries E1 DC power supply, selected by relay K, according to exchanging preferential principle, the normally-closed contact of relay K is connected with batteries E1, when there being Alternating Current Power Supply, about 26V direct current after rectifying and wave-filtering makes relay K adhesive, radio energy transtation mission circuit just works in ac power supply method, now DC power supply E1 and radio energy transtation mission circuit disconnect, this state of light-emitting diode D3 (green) luminescence display simultaneously, be mainly inductance L 4 through the batteries E1 of relay K selection to power, in addition, for chip U2 powers after three terminal regulator U1 voltage stabilizing.The Wireless transceiver of electric energy realizes indeed through the mutual inductance effect of inductance L 4 and inductance L 5, and L4 and L5 forms the former and deputy coil of a transformer without magnetic core here.

Chip U2 is CMOS six not gate CD4069, has only used three not gates here, has produced the square wave of about 1.6MHz, through shaping, the amplitude of obtaining is about the square wave of 11V to encourage metal-oxide-semiconductor VS, makes it be operated on off state (class D), to ensure high energy conversion efficiency.

Under normal circumstances, receiving inductance L5 and emission inductance L4 at a distance of only a few cm, and close to coaxial, now can obtain higher efficiency of transmission, the sinusoidal voltage effective value that inductance L 5 responds to the 1.6MH z obtained is about 16V (zero load), through bridge rectifier and C9 filtering, obtains the direct current of about 20V.When batteries E2 is full of, the inverting input 2 of chip U3 is a little more than pin 4, chip U3 just exports electronegative potential, now triode VT2 ends, triode VT3 ends because can not get bias current completely, thus stop charging, the electronegative potential that chip U1 exports simultaneously makes triode VT1 conducting through resistance R4, lights light-emitting diode D5 and indicates as full state.

Claims (2)

1. an intelligent watch wireless charging system, comprise radio energy transtation mission circuit and radio energy receiving circuit, it is characterized in that, described radio energy transtation mission circuit comprises transformer T, switch S 1, three terminal regulator U1, chip U2, relay K and inductance L 4, and described radio energy receiving circuit comprises inductance L 5, rectifier bridge Q, TL431 and chip U3;

In described radio energy transtation mission circuit, described switch S 1 one end connects 220V alternating current, switch S 1 other end connection transformer T1 coil L1, the transformer T1 coil L1 other end connects the 220V alternating current other end, transformer T1 coil L2 one end connects diode D1 positive pole, diode D1 negative pole connects relay K coil respectively, relay K contact switch K-1 pin 2, diode D2 negative pole and electric capacity C1, relay K coil other end connecting luminous diode D3 positive pole, light-emitting diode D3 negative pole connects the electric capacity C1 other end respectively, the transformer T1 coil L2 other end and transformer T1 coil L3 ground connection, the transformer T1 coil L3 other end connects diode D2 positive pole, described relay K contact switch K-1 pin 1 connects batteries E1 positive pole, batteries E1 minus earth, described relay K contact switch K-1 pin 3 connects electric capacity C2 respectively, three terminal regulator U1 pin 2 and fuse FU, three terminal regulator U1 pin 1 connects the electric capacity C2 other end and ground connection, three terminal regulator U1 pin 3 connects chip U2 pin 6 and electric capacity C4 respectively, the electric capacity C4 other end connects electric capacity C5 and ground connection, the electric capacity C5 other end connects the fuse FU other end respectively, electric capacity C6 and inductance L 4, inductance L 4 other end connects the D pole of the electric capacity C6 other end and metal-oxide-semiconductor VS respectively, the S pole of metal-oxide-semiconductor VS connects diode D4 positive pole and ground connection, diode D4 negative pole is contact resistance R1 respectively, the G pole of electric capacity C7 and metal-oxide-semiconductor VS, the electric capacity C7 other end is the contact resistance R1 other end and chip U2 pin 11 respectively, chip U2 pin 5 ground connection, chip U2 pin 3 connects potentiometer RP1, the potentiometer RP1 other end connects potentiometer RP1 slide plate respectively, chip U2 pin 1 and electric capacity C3, the electric capacity C3 other end connects chip U2 pin 7,

In described radio energy receiving circuit, described inductance L 5 two ends connect rectifier bridge Q pin 1 and pin 3 respectively, rectifier bridge Q pin 4 connects electric capacity C9 and ground connection, rectifier bridge Q pin 2 connects the electric capacity C9 other end respectively, ground capacity C8, resistance R2, resistance R3, triode VT1 emitter, light-emitting diode D6 positive pole and resistance R6, the resistance R2 other end connects potentiometer RP2 respectively, the K pole of TL431 and resistance R9, the A pole of TL431 connects the potentiometer RP2 other end and ground connection, the R pole of TL431 connects potentiometer RP2 slide plate, the described resistance R9 other end connects chip U3 pin 3, chip U3 pin 2 contact resistance R8, the resistance R8 other end connects batteries E2 positive pole and triode VT3 collector electrode respectively, batteries E2 minus earth, the described triode VT3 emitter contact resistance R6 other end, triode VT3 base stage is connecting luminous diode D6 negative pole and resistance R5 respectively, resistance R5 other end connecting triode VT2 collector electrode, triode VT2 grounded emitter, triode VT2 base stage contact resistance R7, the resistance R7 other end connects chip U3 pin 6 and resistance R4 respectively, the resistance R4 other end is the contact resistance R3 other end and triode VT1 base stage respectively, triode VT1 collector electrode connects ground connection light-emitting diode D5 positive pole, described chip U3 pin 4 ground connection, chip U3 pin 7 connects power supply VCC, described chip U2 model is CD4069, described chip U3 model is OPA335.

2. infrared transmitter circuit according to claim 1, is characterized in that, described three terminal regulator U1 model is 7805.