CN2798492Y

CN2798492Y - Electricity saving device for integrated circuit intelligent type street lamp

Info

Publication number: CN2798492Y
Application number: CN 200520034483
Authority: CN
Inventors: 王绍钢; 徐波; 胡绍湘; 廖志武
Original assignee: KAIENSI ENVIRONMENT PROTECTION SCIENCE AND TECHNOLOGY Co Ltd CHENGDU CITY
Current assignee: KAIENSI ENVIRONMENT PROTECTION SCIENCE AND TECHNOLOGY Co Ltd CHENGDU CITY
Priority date: 2005-06-14
Filing date: 2005-06-14
Publication date: 2006-07-19
Anticipated expiration: 2015-06-14

Abstract

The utility model discloses an electricity saving device with an intelligent type integrated circuit for street lamps. A contact of a relay is connected with a source of a field-effect transistor of a P channel, a drain of the field-effect transistor is connected with load, and a grid is connected with the gate signal end of a hot plugging controller. The power end of the hot plugging controller is also connected with the contact of the relay, which is connected with the source of the field-effect transistor. The switch control end of the controller is also connected with the contact of the relay through a current limiting resistor, and the channel signal end is connected with the drain of the field-effect transistor. The utility model can automatically eliminate impulse interference and surge current which are generated by the rebound of the contact of the relay, quicken the detecting speed of the control circuit of electricity-saving devices for street lamps, and extend the service life of street lamps and relevant devices. The utility model has the advantages of simple structure, high reliability and convenient maintenance and use.

Description

Integrated circuit intelligent road lamp electricity-saving appliance

Affiliated technical field

The utility model relates to a kind of electronic power saver for street lamp, relates in particular to a kind of electronic power saver for street lamp that is carried out switch motion by relay.

Background technology

In the transitional street lamps electricity-saving appliance, a class of better performances is by the control circuit control Driver Circuit, drives the actuating of relay by drive circuit then and comes control load (street lamp) to go up the power supply that obtains, to obtain the effect of economize on electricity.Because the existence of big electric current and big voltage in the load circuit must be used mechanical relay; In the use, the rebound of relay contact is inevitable, the impulse disturbances that rebound produces and the impact of surge current, make that the detection speed of control circuit of electronic power saver for street lamp is slow, the stress of the components and parts such as capacitor in load and the load circuit increases, and has reduced the useful life of street lamp and relevant components and parts.

Summary of the invention

The purpose of this utility model just provides a kind of integrated circuit intelligent road lamp electricity-saving appliance, it can overcome the deficiency that exists in the existing electronic power saver for street lamp, automatically eliminate the impulse disturbances and the surge current that produce because of the relay contact rebound, accelerate the detection speed of the control circuit of electronic power saver for street lamp, improve the useful life of street lamp and relevant components and parts.And it is simple in structure, good reliability, and working service is convenient.

The utility model solves its technical problem, and the technical scheme that is adopted is: a kind of integrated circuit intelligent road lamp electricity-saving appliance, comprise the drive circuit of control circuit and control thereof, and the relay that links to each other with drive circuit, its design feature is:

One contact of relay links to each other with the source electrode of the field effect transistor of a P raceway groove, and the drain electrode of this field effect transistor connects load, and grid then links to each other with the gate signal end of a hot-swapping controller.The power end of hot-swapping controller also links to each other with the contact that is connected the field effect transistor source electrode of relay, and the switch control end of this controller also links to each other with this contact of relay by a current-limiting resistance, and its raceway groove signal end then links to each other with the drain electrode of field effect transistor.

Operation principle of the present utility model is: under the effect of control circuit, drive circuit drives the relay adhesive, when making relay two closings of contact, after the effective voltage that hot-swapping controller detects relay contact by its switch control end reaches the significant level of this end, hot-swapping controller is promptly exported a signal by its gate signal end, to the grid of P-channel field-effect transistor (PEFT) pipe, field effect transistor is turn-offed, and this off state is kept a period of time (as 150ms).And be enough to grow contact bounce time in the relay during this period of time.Then, the gate signal output of hot-swapping controller is exported the grid that another signal is given field effect transistor, makes the field effect transistor conducting, and the output voltage of field effect transistor drain electrode at the uniform velocity rises the voltage that the load acquisition is at the uniform velocity risen with certain speed (as 9V/ms).And under the drive circuit effect, transfer to when disconnecting by adhesive when relay, its load output outage, although rebound phenomenon is arranged, hot-swapping controller is lower than setting by the effective voltage on the detected relay contact of switch control end, field effect transistor is turn-offed; Load circuit thoroughly disconnects, and does not produce disturbing pulse.

The beneficial effects of the utility model are: the intelligence control circuit that utilizes P-channel field-effect transistor (PEFT) pipe and hot-swapping controller integrated chip to form, produce in the process of rebound in relay closes and off-state conversion, contact, automatically cut off load current, and when closure, output voltage is at the uniform velocity risen, thereby eliminate impulse disturbances and surge impact automatically, the useful life of having improved street lamp and relevant components and parts greatly to load and relevant components and parts; And the detection speed of the control circuit of quickening electronic power saver for street lamp.Whole electricity-saving appliance only increases a field effect transistor and integrated chip, and it is simple in structure, good reliability, and working service is convenient.

The model of above-mentioned hot-swapping controller is MAX5902.

Adopt the hot-swapping controller of this maturation, can make circuit structure simple, improve reliability.

The utility model will be further described below in conjunction with the drawings and specific embodiments.

Description of drawings

Accompanying drawing is a circuit theory schematic diagram of the present utility model.

Embodiment

Accompanying drawing illustrates, and a kind of embodiment of the present utility model is: a kind of integrated circuit intelligent road lamp electricity-saving appliance comprises control circuit 1 and the drive circuit of controlling 2 thereof, the relay 3 that links to each other with drive circuit 2.One contact 3a of relay links to each other with the source S of the field effect transistor 4 of a P raceway groove, and it also is street lamp 5 that the drain D of this field effect transistor 4 connects load, and grid G then links to each other with the gate signal end GATE of a hot-swapping controller 6;

The power end VS of hot-swapping controller 6 also links to each other with the contact 3a that is connected field effect transistor 4 source S of relay 3, the switch control end ON/OFF of this controller 6 also links to each other with this contact 3a of relay 3 by a current-limiting resistance R, and its raceway groove signal end DRAIN then links to each other with the drain D of field effect transistor 4.The hot-swapping controller that adopts in this example is the MAX5902 hot-swapping controller of MAXIM company.

Certainly, the utility model also can adopt other hot-swapping controller.

Claims

1, a kind of integrated circuit intelligent road lamp electricity-saving appliance comprises that control circuit reaches the drive circuit by its control, and the relay that links to each other with drive circuit is characterized in that:

One contact of described relay links to each other with the source electrode of the field effect transistor of a P raceway groove, and the drain electrode of this field effect transistor connects load, and grid then links to each other with the gate signal end of a hot-swapping controller;

The power end of hot-swapping controller also links to each other with the contact that is connected the field effect transistor source electrode of relay, and the switch control end of this controller also links to each other with this contact of relay by a current-limiting resistance, and its raceway groove signal end then links to each other with the drain electrode of field effect transistor.

2, integrated circuit intelligent road lamp electricity-saving appliance as claimed in claim 1, it is characterized in that: the model of described hot-swapping controller is MAX5902.