CN203465842U

CN203465842U - Battery loss indicator circuit for remote controller

Info

Publication number: CN203465842U
Application number: CN201320600730.6U
Authority: CN
Inventors: 陈志勇
Original assignee: GUANGZHOU SAFENC ELECTRONICS Co Ltd
Current assignee: GUANGZHOU SAFENC ELECTRONICS Co Ltd
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2014-03-05
Anticipated expiration: 2023-09-27

Abstract

The utility model relates to a battery loss indicator circuit for a remote controller, which is used for the remote controller. The battery loss indicator circuit (2) disclosed by the utility model consists of resistors R1, R2 and R3, a triode Q1 and a light emitting diode LED2, wherein a positive electrode of a power supply is connected to one end of a button switch SW, the other end of the button switch SW is connected to one end of each of the resistors R1 and R2, the other end of the resistor R1 is connected with a collector electrode of the triode Q1 and a positive electrode of the light emitting diode LED2, the other end of the resistors R2 is connected with a base electrode of the triode Q1 and one end of the resistor R3, the other end of the resistor R3 is connected with a transmitting electrode of the triode Q1, and a negative electrode of the light emitting diode LED2 is connected with a negative electrode of a battery. The battery loss indicator circuit has the advantages that a battery loss prompting function can be added to the remote controller at a low cost and a small occupied space; moreover, the electric energy consumption of the battery loss indicator circuit is zero when the remote controller is in a standby mode.

Description

Battery loss indicating circuit for telepilot

Technical field

The utility model relates to a kind of battery loss indicating circuit for telepilot, specifically by three resistance, and a triode, a zero standby battery loss indicating circuit that light emitting diode forms.

Background technology

Development along with wireless technology, the operated from a distance of electronic equipment is used conventionally as infrared ray, the wireless technologys such as bluetooth are carried out Remote, in many telepilots as: automobile electronic anti-theft lock, air-conditioning remote control, TV remote controller, electronic lock telepilot etc., particularly some use frequently and want the little telepilot being convenient for carrying of cube, producer is all can be because if add battery detecting IC circuit make whole telepilot volume become two reasons of large manufacturing cost increasing and amount of batteries measuring ability is not set at this type of telepilot of design, like this with regard to cause vast user can not get in use amount of batteries loss most information is absorbed in passive.

Utility model content

The purpose of this utility model is to provide a kind of battery loss indicating circuit for telepilot, it take extremely low cost and minimum taking up room just can add amount of batteries loss prompt facility as telepilot, and the power consumption of battery loss indicating circuit is zero during telepilot standby.

Technical solution of the present utility model is at battery, remote controlled transmitting circuit (1), pushbutton switch SW, on the basis of transmitting indicating lamp LED1, be designed with battery loss indicating circuit (2) and through pushbutton switch SW, be attempted by the positive and negative end of battery, and in parallel with remote controlled transmitting circuit (1); Described battery loss indicating circuit (2) is by resistance R 1, R2, R3, triode Q1, LED 2 forms, positive source connects one end of pushbutton switch SW, the other end connecting resistance R1 of pushbutton switch SW and one end of R2, the collector of another termination triode Q1 of resistance R 1 and the positive pole of LED 2, the base stage of another termination triode Q1 of resistance R 2 and one end of resistance R 3, emitter, the negative pole of LED 2 and the negative pole of battery of another termination triode Q1 of resistance R 3.

Principle of work of the present utility model is when pressing the pushbutton switch SW of telepilot, remote controlled transmitting circuit (1) work, its pilot lamp LED1 lights to represent to have to power and is launching to radiating circuit (1), the resistance R 2 of simultaneously flowing through, the electric current of R3 produces a bias voltage by the base stage at triode Q1, if resistance R 2, the resistance of R3 is chosen suitably, when battery electric power is sufficient, the base voltage of triode Q1 can make it in approaching the state of saturation conduction, make the collector of triode and the voltage between emitter be less than 1.5V, cause the both end voltage of LED2 to be clamped on below 1.5V, thereby can not light, if the power shortage of contrary battery, now resistance R 2, R3 can not provide for the base stage of triode Q1 one and make triode Q1 enter the operating voltage that approaches saturation conduction, make the collector of triode and the voltage between emitter be more than or equal to 1.6V, thereby make the current segment of battery or major part be back to battery cathode through resistance R 1 and LED 2, make LED 2 glittering degree when power shortage larger, remind user to change in time battery.

The utility model has the advantages that it take extremely low cost and minimum just take up room can be as being that telepilot adds amount of batteries loss prompt facility, and the power consumption of battery loss indicating circuit is zero during telepilot standby.

Accompanying drawing explanation

Fig. 1 is circuit theory diagrams of the present utility model.

Embodiment

Shown in Fig. 1, the new type of this practicality is at battery, remote controlled transmitting circuit (1), pushbutton switch SW, on the basis of transmitting indicating lamp LED1, be designed with battery loss indicating circuit (2) and through pushbutton switch SW, be attempted by the positive and negative end of battery, and in parallel with remote controlled transmitting circuit (1), while pressing the button interrupteur SW, battery provides operating voltage for remote controlled transmitting circuit (1) and battery loss indicating circuit (2) simultaneously, described battery loss indicating circuit (2) is by resistance R 1, R2, R3, triode Q1, LED 2 forms, positive source connects one end of pushbutton switch SW, the other end connecting resistance R1 of pushbutton switch SW and one end of R2, the collector of another termination triode Q1 of resistance R 1 and the positive pole of LED 2, the base stage of another termination triode Q1 of resistance R 2 and one end of resistance R 3, emitter, the negative pole of LED 2 and the negative pole of battery of another termination triode Q1 of resistance R 3, resistance R 2 and R3 provide the resistance of operating voltage for transistor base, resistance R 1 is the current-limiting resistance of LED 2, and LED 2 is power state pilot lamp, when the electric power abundance of battery, triode Q1 base stage can obtain making triode Q1 to approach the operating voltage of saturation conduction, now between collector and emitter, two pole tensions are less than 1.5 volts, thereby make LED lamp can not get enough operating voltage, do not do glittering indication, when the power shortage of battery, triode Q1 base stage can not get making triode Q1 to approach the operating voltage of saturation conduction, now between collector and emitter, voltage will be greater than 1.6 volts, thereby make LED lamp obtain enough operating voltage, making the loss of glittering pilot cell will use up, and the electric power of battery is lower, brightness is larger.

Claims

For the battery loss indicating circuit of telepilot, it comprises battery, remote controlled transmitting circuit (1), pushbutton switch SW, transmitting indicating lamp LED1, it is characterized in that battery loss indicating circuit (2) is attempted by the positive and negative end of battery through pushbutton switch SW, and in parallel with remote controlled transmitting circuit (1); Described battery loss indicating circuit (2) is by resistance R 1, R2, R3, triode Q1, LED 2 forms, positive source connects one end of pushbutton switch SW, the other end connecting resistance R1 of pushbutton switch SW and one end of R2, the collector of another termination triode Q1 of resistance R 1 and the positive pole of LED 2, the base stage of another termination triode Q1 of resistance R 2 and one end of resistance R 3, emitter, the negative pole of LED 2 and the negative pole of battery of another termination triode Q1 of resistance R 3.