CN203167370U - A kind of timing lighting circuit and lamp at night - Google Patents

Abstract

The utility model belongs to lamps and lanterns control circuit field especially relates to a timing lighting circuit and lamps and lanterns night. The utility model discloses in, the timing lighting circuit adopts common discrete component to constitute night, controls lamps and lanterns illumination time through the on-time of control silicon controlled rectifier, greatly reduced the cost, because present discrete component technique is very mature, cause the work of timing lighting circuit night very stable to circuit structure is simple.

Description

A kind of night timing lighting circuit and light fixture

Technical field

The utility model belongs to the lamp control circuit field, relates in particular to timing lighting circuit and light fixture at a kind of night.

Background technology

Lamp lighting is seen everywhere in the modern society the inside, and the light fixture that uses in all trades and professions has different purposes.At present, people have different demands to the various functions of light fixture, need have the light fixture of timing function such as present people, to satisfy the requirement to the short time illumination.

But the light fixture that has timing function at present exists complex structure, problem with high costs.

The utility model content

The purpose of the utility model embodiment be to provide a kind of night the timing lighting circuit, be intended to solve the light fixture that has timing function now and have complex structure, problem with high costs.

The utility model embodiment is achieved in that timing lighting circuit at a kind of night, and described night, the timing lighting circuit comprised:

Illuminating source LAMP, rectification circuit, diode D1, electrochemical capacitor C1, controllable silicon Q1, resistance R 1, resistance R 2, LED light L1, automatic reset switch SW;

The first input end of described rectification circuit connects the live wire of civil power by illuminating source LAMP, the first input end of described rectification circuit connects the zero line of civil power, described diode D1, automatic reset switch SW and electrochemical capacitor C1 are connected between first output and ground of described rectification circuit successively, second output head grounding of described rectification circuit, described resistance R 2 and LED light L1 are connected between first output and ground of described rectification circuit successively, the anode of described controllable silicon Q1 connects first output of rectification circuit, the minus earth of described controllable silicon Q1, the control end of described controllable silicon Q1 connect the public connecting end of automatic reset switch SW and electrochemical capacitor C1 by resistance R 1.

Another purpose of the utility model embodiment is to provide a kind of light fixture, comprises timing lighting circuit at night, and described night, the timing lighting circuit comprised:

Illuminating source LAMP, rectification circuit, diode D1, electrochemical capacitor C1, controllable silicon Q1, resistance R 1, resistance R 2, LED light L1, automatic reset switch SW;

The first input end of described rectification circuit connects the live wire of civil power by illuminating source LAMP, the first input end of described rectification circuit connects the zero line of civil power, described diode D1, automatic reset switch SW and electrochemical capacitor C1 are connected between first output and ground of described rectification circuit successively, second output head grounding of described rectification circuit, described resistance R 2 and LED light L1 are connected between first output and ground of described rectification circuit successively, the anode of described controllable silicon Q1 connects first output of rectification circuit, the minus earth of described controllable silicon Q1, the control end of described controllable silicon Q1 connect the public connecting end of automatic reset switch SW and electrochemical capacitor C1 by resistance R 1.

In the utility model embodiment, night, the timing lighting circuit adopted common discrete component to constitute, control the lamp lighting time by control silicon controlled ON time, greatly reduce cost, because present discrete component technology is very ripe, cause the work of timing lighting circuit at night highly stable, and circuit structure is simple.

Description of drawings

Fig. 1 be the utility model embodiment provide night the timing lighting circuit circuit structure diagram.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Fig. 1 shows that the utility model embodiment provides night the timing lighting circuit circuit structure, for convenience of explanation, only show the part relevant with the utility model embodiment, details are as follows.

A kind of night the timing lighting circuit, described night, the timing lighting circuit comprised:

Illuminating source LAMP, rectification circuit 100, diode D1, electrochemical capacitor C1, controllable silicon Q1, resistance R 1, resistance R 2, LED light L1, automatic reset switch SW;

The first input end of described rectification circuit 100 connects the live wire of civil power by illuminating source LAMP, the first input end of described rectification circuit 100 connects the zero line of civil power, described diode D1, automatic reset switch SW and electrochemical capacitor C1 are connected between first output and ground of described rectification circuit 100 successively, second output head grounding of described rectification circuit 100, described resistance R 2 and LED light L1 are connected between first output and ground of described rectification circuit 100 successively, the anode of described controllable silicon Q1 connects first output of rectification circuit 100, the minus earth of described controllable silicon Q1, the control end of described controllable silicon Q1 connect the public connecting end of automatic reset switch SW and electrochemical capacitor C1 by resistance R 1.

As the utility model one embodiment, described rectification circuit 100 adopts rectifier bridge.

The utility model embodiment also provides a kind of light fixture, comprises timing lighting circuit at night, and described night, the timing lighting circuit comprised:

Illuminating source LAMP, rectification circuit 100, diode D1, electrochemical capacitor C1, controllable silicon Q1, resistance R 1, resistance R 2, LED light L1, automatic reset switch SW;

The first input end of described rectification circuit 100 connects the live wire of civil power by illuminating source LAMP, the first input end of described rectification circuit 100 connects the zero line of civil power, described diode D1, automatic reset switch SW and electrochemical capacitor C1 are connected between first output and ground of described rectification circuit 100 successively, second output head grounding of described rectification circuit 100, described resistance R 2 and LED light L1 are connected between first output and ground of described rectification circuit 100 successively, the anode of described controllable silicon Q1 connects first output of rectification circuit 100, the minus earth of described controllable silicon Q1, the control end of described controllable silicon Q1 connect the public connecting end of automatic reset switch SW and electrochemical capacitor C1 by resistance R 1.

As the utility model one embodiment, described rectification circuit 100 adopts rectifier bridge.

Night the timing lighting circuit operation principle:

Illuminating source LAMP is connected on the civil power, and civil power is pressed automatic reset switch SW by the rectifier bridge rectification, when automatic reset switch SW is closed, make electrochemical capacitor C1 both end voltage raise, the control end of controllable silicon Q1 obtains the direct current trigger voltage, trigger controllable silicon Q1 conducting, illuminating source LAMP is bright.After automatic reset switch SW automatically resets (disconnection), electrochemical capacitor C1 two ends electric charge slowly discharges by resistance R 1 beginning, passing in time, and electrochemical capacitor C1 both end voltage reduces gradually, controllable silicon Q1 disconnects when near low level, and illuminating source LAMP extinguishes.Lighting hours length depends on the parameter of electrochemical capacitor C1 and resistance R 1.

Bright when controllable silicon Q1 disconnects by LED light L1, can indicate the position of automatic reset switch SW and having or not of civil power.When not pressing automatic reset switch SW, break down or have a power failure if but LED light L1 extinguishes decision circuit.

In the utility model embodiment, night, the timing lighting circuit adopted common discrete component to constitute, control the lamp lighting time by control silicon controlled ON time, greatly reduce cost, because present discrete component technology is very ripe, cause the work of timing lighting circuit at night highly stable, and circuit structure is simple.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims (4)

1. A timing lighting circuit at night, characterized in that, the timing lighting circuit at night comprises: Light source LAMP, rectifier circuit, diode D1, electrolytic capacitor C1, thyristor Q1, resistor R1, resistor R2, LED indicator L1, automatic reset switch SW; The first input end of the rectification circuit is connected to the live line of the mains power through the light source LAMP, the first input end of the rectification circuit is connected to the neutral line of the mains power, and the diode D1, the automatic reset switch SW and the electrolytic capacitor C1 are connected in series in sequence Between the first output end of the rectification circuit and the ground, the second output end of the rectification circuit is grounded, and the resistor R2 and the LED indicator light L1 are sequentially connected in series between the first output end of the rectification circuit and the ground Between, the anode of the thyristor Q1 is connected to the first output end of the rectifier circuit, the cathode of the thyristor Q1 is grounded, and the control end of the thyristor Q1 is connected to the automatic reset switch SW and the electrolytic capacitor C1 through the resistor R1 of the public connection. 2. The timing lighting circuit at night as claimed in claim 1, wherein the rectifying circuit adopts a rectifying bridge. 3. A light fixture, comprising a timing lighting circuit at night, characterized in that, the timing lighting circuit at night comprises: Light source LAMP, rectifier circuit, diode D1, electrolytic capacitor C1, thyristor Q1, resistor R1, resistor R2, LED indicator L1, automatic reset switch SW; The first input end of the rectification circuit is connected to the live line of the mains power through the light source LAMP, the first input end of the rectification circuit is connected to the neutral line of the mains power, and the diode D1, the automatic reset switch SW and the electrolytic capacitor C1 are connected in series in sequence Between the first output end of the rectification circuit and the ground, the second output end of the rectification circuit is grounded, and the resistor R2 and the LED indicator light L1 are sequentially connected in series between the first output end of the rectification circuit and the ground Between, the anode of the thyristor Q1 is connected to the first output end of the rectifier circuit, the cathode of the thyristor Q1 is grounded, and the control end of the thyristor Q1 is connected to the automatic reset switch SW and the electrolytic capacitor C1 through the resistor R1 of the public connection. 4. The lamp according to claim 3, wherein the rectifier circuit adopts a rectifier bridge.

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