CN104678318A

CN104678318A - Battery performance detector

Info

Publication number: CN104678318A
Application number: CN201510098457.5A
Authority: CN
Inventors: 黄宇嵩
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-05
Filing date: 2015-03-05
Publication date: 2015-06-03

Abstract

The invention provides a battery performance detector. The battery performance detector is characterized by comprising a battery of 1.5V, a voltage division type amplifying circuit, a low-frequency oscillation circuit and a flicker indicating circuit. A set of batteries may consist of two or more batteries, and as long as one battery is low in electric quantity or broken, electronic equipment such as a recorder or an electric torch cannot be normally used; if all the batteries are thrown away, plenty of the batteries are wasted, and pollution to the environment is caused. The battery performance detector disclosed by the invention can quickly detect the performance of each battery in a battery set, a less usable battery or an unusable battery can be picked out. The battery performance detector has the advantages of simple circuit structure, few components, low manufacture cost, easiness in mounting and the like.

Description

Battery performance detecting device

Technical field

The invention belongs to battery and electronic technology field, is about a kind of battery performance detecting device.

Background technology

Battery is the consumables often used during we live, and may be made up of in a Battery pack two joints or more batteries, as long as there is a batteries electricity not enough or bad, the electronic equipment such as radio cassette player or electric torch just can not normally use.If all batteries are all thrown away, not only waste especially, but also can to environment.Battery performance detecting device of the present invention can detect fast to each the batteries performance in electric battery, and not handy or obsolete battery is picked out.Battery performance detecting device have circuit structure succinct, use that components and parts are few, cost of manufacture is low, install the advantages such as easy.

Below describe in detail battery performance detecting device of the present invention necessity involved in implementation process, guardian technique content.

Summary of the invention

Goal of the invention and beneficial effect: may be made up of two joints or more batteries in a Battery pack, as long as there is a batteries electricity not enough or bad, the electronic equipment such as radio cassette player or electric torch just can not normally use.If all batteries are all thrown away, not only waste especially, but also can to environment.Battery performance detecting device of the present invention can detect fast to each the batteries performance in electric battery, and not handy or obsolete battery is picked out.Battery performance detecting device have circuit structure succinct, use that components and parts are few, cost of manufacture is low, install the advantages such as easy.

Circuit working principle: the operating voltage of general light emitting diode is at 1.8 ~ 2.5V, so a joint dry cell directly can not light light emitting diode.And battery performance detecting device light emitting diode of the present invention shows cell voltage.Because drive light emitting diode with an oscillatory circuit in battery performance detecting device.After circuit connects 1.5V battery, because the resistance of resistance R4, resistance R5 is less, electrochemical capacitor C1 is charged rapidly and is about 1.5V, and the polarity of voltage on electrochemical capacitor C1 is left positive right negative.In charging process, the emitter voltage of NPN type triode VT1 is higher, and the base voltage of NPN type triode VT1 is fixing, determined by the dividing potential drop of resistance R1 and resistance R2.So NPN type triode VT1 is in cut-off state.Along with the end of charging process, NPN type triode VT1 emitter voltage declines, and NPN type triode VT1 starts conducting, and NPN type triode VT1 collector voltage declines.PNP type triode VT2 is and then rapid conducting also, its emitter voltage declines, because the voltage at electrochemical capacitor C1 two ends can not suddenly change, the right of such electrochemical capacitor C1 is exactly negative voltage relative to the negative pole of battery, and the positive pole of LED is the positive pole being connected on battery, two voltages act on a light emitting diode simultaneously, meet the requirement of LED to operating voltage, so at this moment LED can be glittering.The glittering electrochemical capacitor C1 that makes of LED discharges, and electric discharge terminates rear electrochemical capacitor C1 and again charges, and NPN type triode VT1 is ended again, starts next cyclic process.Because it is an oscillatory circuit, so light emitting diode can constantly flicker.

Technical characteristic: battery performance detecting device, it comprises 1.5V battery, partial pressure type amplifying circuit, low-frequency oscillatory network and indicating circuit twinkling, it is characterized in that:

Partial pressure type amplifying circuit: it is made up of resistance R1, resistance R2, NPN type triode VT1, resistance R3 and resistance R4, the model that NPN type triode VT1 selects is 2SC9014, one end of base stage connecting resistance R1 of NPN type triode VT1 and one end of resistance R2, the other end connection circuit positive pole VCC of resistance R1, the other end connection circuit ground GND of resistance R2, the collector of NPN type triode VT1 passes through resistance R4 connection circuit ground GND by the emitter of resistance R3 connection circuit positive pole VCC, NPN type triode VT1;

Low-frequency oscillatory network and indicating circuit twinkling: it is by PNP type triode VT2, resistance R5, electrochemical capacitor C1 and LED composition, the model that PNP type triode VT2 selects is 2SC9015, the base stage of PNP type triode VT2 connects the collector of NPN type triode VT1, the emitter of PNP type triode VT2 is by resistance R5 connection circuit positive pole VCC, the collector connection circuit ground GND of PNP type triode VT2, the emitter of PNP type triode VT2 connects the positive pole of electrochemical capacitor C1, the negative pole of electrochemical capacitor C1 connects the negative pole of LED and the emitter of NPN type triode VT1, the positive pole connection circuit positive pole VCC of LED,

The positive pole connection circuit positive pole VCC of 1.5V battery, the negative pole of 1.5V battery is connected with circuit ground GND.

Accompanying drawing explanation

Accompanying drawing 1 is the circuit working schematic diagram that the invention provides a battery performance detecting device embodiment.

Embodiment

According to the battery performance detector circuit fundamental diagram shown in accompanying drawing 1 and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in summary of the invention, and components and parts technical parameter described in embodiment requires and circuit production main points are carried out enforcement and can be realized the present invention, is further described correlation technique of the present invention below in conjunction with embodiment.

The selection of components and parts and technical parameter thereof

VT1 is NPN type triode, and the model selected is 2SC9014, also can use the models such as 2SC9013, requires hfe > 150;

VT2 is PNP type triode, and the model selected is 2SC9015, also can use the models such as 2SC9012, requires hfe > 150;

LED is light emitting diode, selects diameter to be the red high-brightness light emitting diode of ￠ 5;

All resistance uses l/8W metalfilmresistor, and the resistance of resistance R1 is 100K Ω; The resistance of resistance R2 is 200K Ω; The resistance of resistance R3 is 2.7K Ω; The resistance of resistance R4 and resistance R5 is 1K Ω; C1 is electrochemical capacitor, and its capacity is 100 μ F/10V.

Circuit production general condensed summary and circuit debugging

Because the circuit structure of battery performance detecting device is fairly simple, generally, as long as the electronic devices and components performance selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present invention only needs to debug simply and can normally work;

Note the polarity of electrochemical capacitor and light emitting diode during installation, electrochemical capacitor C1 can mark its negative pole end, LED then carefully will see clearly the polarity of its electrode.This two classes triode of NPN type triode VT1, PNP type triode VT2 can not be obscured, and must distinguish their 3 poles during installation; Change the resistance of resistance R3, the build-up of luminance point voltage of LED and glittering speed can be changed;

When using battery performance detecting device to detect new battery, because the voltage of new battery is higher, the glittering speed of LED is just fast; If when used batteries voltage is lower or electricity is less, the glittering speed of LED is just slow, and during brownout, LED does not just work, and judges the newness degree of battery thus.

Circuit components layout of the present invention, circuit structure design, its shape and size etc. of outward appearance are not all gordian techniquies of the present invention; neither application claims protection technology contents; because not affecting specific implementation process of the present invention, therefore do not illustrate one by one in the description.

Claims

1. a battery performance detecting device, it comprises 1.5V battery, partial pressure type amplifying circuit, low-frequency oscillatory network and indicating circuit twinkling, it is characterized in that:

Described partial pressure type amplifying circuit is made up of resistance R1, resistance R2, NPN type triode VT1, resistance R3 and resistance R4, the model that NPN type triode VT1 selects is 2SC9014, one end of base stage connecting resistance R1 of NPN type triode VT1 and one end of resistance R2, the other end connection circuit positive pole VCC of resistance R1, the other end connection circuit ground GND of resistance R2, the collector of NPN type triode VT1 passes through resistance R4 connection circuit ground GND by the emitter of resistance R3 connection circuit positive pole VCC, NPN type triode VT1;

Described low-frequency oscillatory network and indicating circuit twinkling are by PNP type triode VT2, resistance R5, electrochemical capacitor C1 and LED composition, the model that PNP type triode VT2 selects is 2SC9015, the base stage of PNP type triode VT2 connects the collector of NPN type triode VT1, the emitter of PNP type triode VT2 is by resistance R5 connection circuit positive pole VCC, the collector connection circuit ground GND of PNP type triode VT2, the emitter of PNP type triode VT2 connects the positive pole of electrochemical capacitor C1, the negative pole of electrochemical capacitor C1 connects the negative pole of LED and the emitter of NPN type triode VT1, the positive pole connection circuit positive pole VCC of LED,

The positive pole connection circuit positive pole VCC of described 1.5V battery, the negative pole of 1.5V battery is connected with circuit ground GND.