CN205510481U - Reserve LED controller of intelligence - Google Patents

Abstract

The utility model discloses a reserve LED controller of intelligence, including rectifier bridge Q, diode D1, resistance R1, electric capacity C1, triode VT1 and one -way silicon controlled rectifier VS, 220V alternating current both ends are connected respectively with pin 3 to rectifier bridge Q pin 1, diode D1 negative pole is connected respectively to rectifier bridge Q pin 2, resistance R1 and resistance R2, electric capacity C1 and triode VT1 base are connected respectively to the resistance R1 other end, triode VT1 collecting electrode is the connecting resistance R2 other end and triode VT2 base respectively, it is anodal that emitting diode LED1 is connected to triode VT2 collecting electrode, emitting diode LED1 negative pole connecting resistance R3, resistance R3 other end difference connecting resistance R4 and one -way silicon controlled rectifier VS's the G utmost point. The utility model provides a reserve LED controller of intelligence can be used for domestic desk lamp, conflagration emergency light and so on place, can be under the condition that commercial power 220V has a power failure, and the reserve LED lamp of automatic lighting, the life of giving people brings very big facility.

Description

An Intelligent Standby LED Controller

technical field

The utility model relates to an LED, in particular to an intelligent standby LED controller.

Background technique

With the advancement of human science and technology, human beings have become more and more inseparable from electric energy. Once a power outage occurs in life, it will cause great inconvenience to people's daily life.

The utility model provides an intelligent standby LED controller, which can be used in places such as household desk lamps, fire emergency lights, etc., and can automatically light up the standby LED lights in the case of a 220V power failure in the mains, bringing great benefits to people's lives. Great convenience.

Utility model content

The purpose of this utility model is to provide an intelligent standby LED controller to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

An intelligent standby LED controller, comprising a rectifier bridge Q, a diode D1, a resistor R1, a capacitor C1, a triode VT1 and a one-way thyristor VS, the pin 1 and pin 3 of the rectifier bridge Q are respectively connected to two ends of a 220V alternating current , Q pin 2 of the rectifier bridge is connected to the cathode of diode D1, resistor R1 and resistor R2 respectively, the other end of resistor R1 is connected to capacitor C1 and the base of transistor VT1 respectively, the collector of transistor VT1 is connected to the other end of resistor R2 and the base of transistor VT2 respectively, and the transistor The collector of VT2 is connected to the positive pole of LED1, the negative pole of LED1 is connected to resistor R3, the other end of resistor R3 is connected to resistor R4 and the G pole of unidirectional thyristor VS, and the other end of resistor R4 is respectively connected to the positive pole of battery pack E and the one-way thyristor. The A pole of the thyristor VS, the K pole of the one-way thyristor VS are connected to the positive pole of the light-emitting diode LED2, and the negative pole of the light-emitting diode LED2 is respectively connected to the negative pole of the battery pack E, the emitter of the triode VT1, the emitter of the triode VT2, the other end of the capacitor C1, and the diode D1 Positive and bridge rectifier Q pin 4.

As a further solution of the present invention: the diode D1 is a Zener diode.

Compared with the prior art, the beneficial effect of the utility model is that the utility model provides an intelligent standby LED controller, which can be used in household table lamps, fire emergency lights, etc. Automatically light up the spare LED lights, which brings great convenience to people's life.

Description of drawings

Figure 1 is a circuit diagram of an intelligent standby LED controller.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, in the embodiment of the utility model, an intelligent standby LED controller includes a rectifier bridge Q, a diode D1, a resistor R1, a capacitor C1, a triode VT1 and a one-way thyristor VS, and the rectifier bridge Q leads Pin 1 and pin 3 are respectively connected to both ends of 220V AC, rectifier bridge Q pin 2 is respectively connected to the cathode of diode D1, resistor R1 and resistor R2, and the other end of resistor R1 is respectively connected to capacitor C1 and the base of transistor VT1, and the collector of transistor VT1 is respectively Connect the other end of the resistor R2 to the base of the triode VT2, the collector of the triode VT2 is connected to the anode of the light-emitting diode LED1, the cathode of the light-emitting diode LED1 is connected to the resistor R3, the other end of the resistor R3 is respectively connected to the resistor R4 and the G pole of the one-way thyristor VS, and the resistor R4 The other end is respectively connected to the positive pole of the battery pack E and the A pole of the one-way thyristor VS, the K pole of the one-way thyristor VS is connected to the positive pole of the light-emitting diode LED2, and the negative pole of the light-emitting diode LED2 is respectively connected to the negative pole of the battery pack E, the emitter of the triode VT1, The emitter of the triode VT2, the other end of the capacitor C1, the anode of the diode D1 and the Q pin 4 of the rectifier bridge; the diode D1 is a Zener diode.

The working principle of the utility model is: please refer to Fig. 1, after the 220V AC rectifier bridge Q is rectified, then after being amplified by the triode VT1 and the triode VT2, it supplies power to the light-emitting diode LED1 on the one hand, and charges the battery pack E on the other hand. At this time, due to The collector of the triode VT2 is at low level, that is, the G of the one-way thyristor VS is extremely low, so that the one-way thyristor VS is in the off state, and the light-emitting diode LED2 will not light up. At this time, only LED1 is on. When charging the battery pack E, due to the existence of the Zener diode D1, the maximum charging voltage of the battery pack E cannot exceed the regulated value of D1. When the 220V AC power suddenly fails, because the capacity of the filter capacitor C1 is small, the triode VT1 and triode VT2 are immediately cut off. Release the blockade of the one-way thyristor VS, the G pole of VS is turned on by obtaining the positive trigger current through the resistor R4, the spare LED2 is powered on, and the light-emitting diode LED1 is extinguished due to the loss of mains power.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (2)

1. an intelligent standby LED controller, comprising rectifier bridge Q, diode D1, resistor R1, capacitor C1, triode VT1 and one-way thyristor VS, is characterized in that, described rectifier bridge Q pin 1 and pin 3 Connect the two ends of the 220V AC respectively, the Q pin 2 of the rectifier bridge is respectively connected to the cathode of the diode D1, the resistor R1 and the resistor R2, the other end of the resistor R1 is respectively connected to the capacitor C1 and the base of the triode VT1, and the collector of the triode VT1 is respectively connected to the other end of the resistor R2 and The base of the triode VT2, the collector of the triode VT2 are connected to the anode of the light-emitting diode LED1, the cathode of the light-emitting diode LED1 is connected to the resistor R3, the other end of the resistor R3 is respectively connected to the resistor R4 and the G pole of the one-way thyristor VS, and the other end of the resistor R4 is respectively connected to the battery pack The positive pole of E and the A pole of the one-way thyristor VS, the K pole of the one-way thyristor VS are connected to the positive pole of the light-emitting diode LED2, and the negative pole of the light-emitting diode LED2 is respectively connected to the negative pole of the battery pack E, the emitter of the triode VT1, the emitter of the triode VT2, and the capacitor The other end of C1, the positive pole of diode D1 and the Q pin 4 of the rectifier bridge. 2. The intelligent standby LED controller according to claim 1, wherein the diode D1 is a Zener diode.