CN205092630U

CN205092630U - Emergent charger of portable equipment

Info

Publication number: CN205092630U
Application number: CN201520935344.1U
Authority: CN
Inventors: 黄梁梁
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-21
Filing date: 2015-11-21
Publication date: 2016-03-16
Anticipated expiration: 2025-11-21

Abstract

The utility model discloses an emergent charger of portable equipment, including electric capacity C1, resistance R1, triode BG1, diode D1, chip U1 and inductance L1, battery E negative pole is connected respectively to electric capacity C1 one end, chip U1 pin 8 and inductance L1, 1 difference connecting resistance R1 of chip U1 pin, electric capacity C3, electric capacity C4 and resistance R2, electric capacity C3 other end connecting resistance R3, the electric capacity C4 other end is connected respectively to the resistance R3 other end, chip U1 pin 3 and electric capacity C2, it is anodal that battery E is connected respectively to the electric capacity C2 other end, the electric capacity C1 other end, the resistance R2 other end, chip U1 pin 4, resistance R4, resistance R5 and electric capacity C5 and ground connection. The utility model discloses emergent charger of portable equipment can answer the boost charge to the outage portable equipment in no mains power supply occasion, guarantees that portable equipment information is continuous, unblocked, only need in addition to adopt two sections of 3V voltage 5 numbers battery powered can, circuit structure is simple, and is with low costs, small.

Description

A kind of portable equipment charger for emergency

Technical field

The utility model relates to a kind of charger, specifically a kind of portable equipment charger for emergency.

Background technology

Along with the development of society, improving constantly of living standard, working strength constantly increases, the portable mobile communication equipment such as mobile phone more and more become the necessity of people's daily life, along with the popularization on a large scale of portable set, with it and come the consumables associated therewith consumer goods also can rise thereupon, but today of breakthrough is not had at battery technology, the continuation of the journey problem of the portable sets such as mobile phone is the focus that people pay close attention to always, and present people go out and are accustomed to bringing charger baby, charge at any time.

And there is no breakthrough due to battery technology, the volume of charger baby is all comparatively large, charger baby capacious, and volume, more for huge, brings very large inconvenience.

Utility model content

The purpose of this utility model is to provide a kind of portable equipment charger for emergency, 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 portable equipment charger for emergency, comprises electric capacity C1, resistance R1, triode BG1, diode D1, chip U1 and inductance L 1, described electric capacity C1 one end connects battery E negative pole respectively, chip U1 pin 8 and inductance L 1, chip U1 pin 1 is contact resistance R1 respectively, electric capacity C3, electric capacity C4 and resistance R2, electric capacity C3 other end contact resistance R3, the resistance R3 other end connects the electric capacity C4 other end respectively, chip U1 pin 3 and electric capacity C2, the electric capacity C2 other end connects battery E positive pole respectively, the electric capacity C1 other end, the resistance R2 other end, chip U1 pin 4, resistance R4, resistance R5 and electric capacity C5 ground connection, the resistance R5 other end is connecting triode BG1 emitter and chip U1 pin 7 respectively, triode BG1 base stage connects chip U1 pin 5 and the resistance R4 other end respectively, triode BG1 collector electrode connects diode D1 positive pole and inductance L 1 other end respectively, and diode D1 negative pole connects inductance L 2 respectively, the electric capacity C5 other end, output end vo and the resistance R1 other end, inductance L 2 other end connects ground capacity C6 and light-emitting diode D2 positive pole respectively, and light-emitting diode D2 negative pole connects chip U1 pin 6 by resistance R6, and described chip U1 adopts LM3578.

As the utility model further scheme: described battery E voltage is 3V.

Compared with prior art, the beneficial effects of the utility model are: the utility model portable equipment charger for emergency can without mains-supplied occasion, emergent charging is carried out to power-off portable equipment, guarantee that portable equipment information is continuous, unblocked, and only need two joints No. 5 powered battery adopting 3V voltage, circuit structure is simple, and cost is low, and volume is little.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of portable equipment charger for emergency.

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, in the utility model embodiment, a kind of portable equipment charger for emergency, comprises electric capacity C1, resistance R1, triode BG1, diode D1, chip U1 and inductance L 1, described electric capacity C1 one end connects battery E negative pole respectively, chip U1 pin 8 and inductance L 1, chip U1 pin 1 is contact resistance R1 respectively, electric capacity C3, electric capacity C4 and resistance R2, electric capacity C3 other end contact resistance R3, the resistance R3 other end connects the electric capacity C4 other end respectively, chip U1 pin 3 and electric capacity C2, the electric capacity C2 other end connects battery E positive pole respectively, the electric capacity C1 other end, the resistance R2 other end, chip U1 pin 4, resistance R4, resistance R5 and electric capacity C5 ground connection, the resistance R5 other end is connecting triode BG1 emitter and chip U1 pin 7 respectively, triode BG1 base stage connects chip U1 pin 5 and the resistance R4 other end respectively, triode BG1 collector electrode connects diode D1 positive pole and inductance L 1 other end respectively, and diode D1 negative pole connects inductance L 2 respectively, the electric capacity C5 other end, output end vo and the resistance R1 other end, inductance L 2 other end connects ground capacity C6 and light-emitting diode D2 positive pole respectively, and light-emitting diode D2 negative pole connects chip U1 pin 6 by resistance R6, and described chip U1 adopts LM3578.

Described battery E voltage is 3V.

Operation principle of the present utility model is: refer to Fig. 1, U1 is monolithic PWM on-off controller, inside comprises oscillator, reference voltage, error is amplified and is driven the four large functions such as triode, external circuit connects electric capacity C1 ~ C6, resistance R1 ~ R6, inductance L 1 and L2, also have the composition DC/DC booster circuits such as triode BG1, wherein U1 pin 3 pin meets C2 and determines that frequency of oscillation is about 50kHz, C3, the favourable switch of R3 and C4 is in connection status, chip U1 pin 6 passes through R6, D2 is connected with output end vo, to increase driving force, but must add L2 and C6 prevents output and input from causing parasitic oscillation and U1 pin 5 to connect BG1 base stage, add sample resistance R5 and be connected to U1 pin 7, to control maximum operating currenbt.Circuit working process is as follows: connect battery E, U1 starts working, and the square-wave signal of output flows through energy storage inductor L1 through BG1 amplification, during BG1 conducting, and L1 energy storage; During BG1 cut-off, L1 discharges electric energy by booster diode D1, so obtain the booster voltage being several times as much as E on electric capacity C5, this voltage one tunnel samples through resistance R1 and R2 and sends into error U1 pin 1, makes output voltage keep stable; U1 pin 6 is sent on another road, and to increase the Injection Current of BG1, wherein D2 is charging instruction.

To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.

In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.

Claims

1. a portable equipment charger for emergency, comprises electric capacity C1, resistance R1, triode BG1, diode D1, chip U1 and inductance L 1, is characterized in that, described electric capacity C1 one end connects battery E negative pole respectively, chip U1 pin 8 and inductance L 1, chip U1 pin 1 is contact resistance R1 respectively, electric capacity C3, electric capacity C4 and resistance R2, electric capacity C3 other end contact resistance R3, the resistance R3 other end connects the electric capacity C4 other end respectively, chip U1 pin 3 and electric capacity C2, the electric capacity C2 other end connects battery E positive pole respectively, the electric capacity C1 other end, the resistance R2 other end, chip U1 pin 4, resistance R4, resistance R5 and electric capacity C5 ground connection, the resistance R5 other end is connecting triode BG1 emitter and chip U1 pin 7 respectively, triode BG1 base stage connects chip U1 pin 5 and the resistance R4 other end respectively, triode BG1 collector electrode connects diode D1 positive pole and inductance L 1 other end respectively, and diode D1 negative pole connects inductance L 2 respectively, the electric capacity C5 other end, output end vo and the resistance R1 other end, inductance L 2 other end connects ground capacity C6 and light-emitting diode D2 positive pole respectively, and light-emitting diode D2 negative pole connects chip U1 pin 6 by resistance R6, and described chip U1 adopts LM3578.

2. portable equipment charger for emergency according to claim 1, is characterized in that, described battery E voltage is 3V.