CN203104930U

CN203104930U - Light adjusting electronic drive circuit of high-pressure gas discharge lamp

Info

Publication number: CN203104930U
Application number: CN2013200695995U
Authority: CN
Inventors: 罗晓东; 童绪贵
Original assignee: DEQING YIKE AINENG ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: DEQING YIKE AINENG ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2013-02-02
Filing date: 2013-02-02
Publication date: 2013-07-31
Anticipated expiration: 2023-02-02

Abstract

The utility model discloses a light adjusting electronic drive circuit of a high-pressure gas discharge lamp. The light adjusting electronic drive circuit comprises an electronic ballast circuit and a light adjusting circuit, wherein a control circuit arranged in the electronic ballast circuit is connected with the light adjusting circuit; the light adjusting circuit comprises a microprocessor and a memory; the memory is used for storing multiple light adjusting modes; and the microprocessor is used for calling the preset light adjusting modes according to the different electrification time. According to the light adjusting electronic drive circuit, multiple delay time can be set by the light adjusting circuit and can be automatically converted; and for instance, the power is reduced after the time is delayed for 6h in the mode 1, and the power is reduced after the time is delayed for 4h in the mode 2. Therefore, the needed delay time can be adjusted according to the different seasons, so that the demand of roadway illumination can be met, and the electric energy is saved.

Description

A kind of high-voltage gas discharging light dimming electronic drive circuit

Technical field

The utility model relates to a kind of gas discharge lamp electronic drive circuit (electric ballast), especially dimming electronic drive circuit (electric ballast).

Background technology

The timing dimming electric ballast is applied to road lighting and has obtained good social benefit and economic benefit, the timing dimming electric ballast is to adopt the full power illumination in the bigger period of the flow of people and Che (as 18 point-23 point), reaches the purpose of saving electric energy and reduce lighting power in the less period of (point in 23 o'clock-second day early mornings 6) people's vehicle flowrate in midnight to early morning.This timing dimming electric ballast exists a problem to be exactly, winter and summer are because the time phase difference of darkness is very big, also have than big difference the rush hour of people's activity in night, so use the time with a kind of setting in winter and summer, will make troubles to people's trip and comings and goings.In order to overcome this defective, modified model as this technology, adopted and installed switch additional as (patent 201120168903.2), manually use switch transition during the season conversion, this mode workload is huge, and is not too practical, the another kind of improvement is to adopt wireless and infrared remote control (as patent 201120164108.6), load onto infrared or wireless remote control for every ballast, one is that cost increases, and secondly the artificial conversion of remote control at the scene of each ballast also is very big workload.

The utility model content

The purpose of this utility model is to overcome deficiency of the prior art, and a kind of many gears timing dimming high-pressure discharge lamp electronic driver (electric ballast) of regulating timing according to four seasons Changes in weather by prolongation conduction time automatically is provided.

The technical solution of the utility model: a kind of high-voltage gas discharging light dimming electronic drive circuit, comprise circuit of electronic ballast and light adjusting circuit, control circuit in the described circuit of electronic ballast connects light adjusting circuit, light adjusting circuit comprises microprocessor and memory, memory is used to store multiple light-modulating mode, and microprocessor calls predefined light-modulating mode according to the difference of power on circuitry time.

Described circuit of electronic ballast comprises the EMI filter circuit, the EMI filter circuit connects bridge rectifier, bridge rectifier connects the APFC power factor correction circuit, the APFC power factor correction circuit connects inverter circuit, inverter circuit connects control circuit and current-limiting inductance, and current-limiting inductance connects high-voltage gas discharging light, high-voltage gas discharging light tie point ignition circuit, control circuit connects light adjusting circuit, and accessory power supply is given the each several part circuit supply.

Described circuit of electronic ballast comprises the EMI filter circuit, the EMI filter circuit connects bridge rectifier, bridge rectifier connects the APFC circuit of power factor correction, the APFC circuit of power factor correction connects the BUCK circuit, and the BUCK circuit connects full bridge inverter, and full bridge inverter connects fluorescent tube, fluorescent tube tie point ignition circuit, the BUCK circuit is connected with control circuit, and control circuit connects light adjusting circuit, and accessory power supply is given the each several part circuit supply.

Operation principle of the present utility model is: input current is through the filtering of EMI filter circuit, be direct current through the bridge rectifier rectification then, pass through APFC passive power factor corrective circuit again, export the half-bridge inversion circuit use of back level altogether of a stable 400V direct voltage, voltage after half-bridge inversion circuit will be stablized through APFC, be changed to high-frequency ac voltage, behind current limit by inductance, use for high-voltage gas discharging light, in the high-voltage gas discharging light start-up course, firing circuit produces 3-4 kilovolt high pressure and lights high-voltage gas discharging light, control circuit changes by the big or small control frequency that detects output current, combination by half-bridge inversion circuit and current-limiting inductance is to export a constant-power power source, timing dimming circuit is by microprocessor, compositions such as memory and respective peripheral circuit, when microprocessor starts, call operational mode on the same day, according to pattern, microcontroller calculates needs the time and the control signal of time-delay to output to frequency control circuit, the control power output.Microprocessor compute ballast running time every day simultaneously, and record in the memory, running time is in preestablishing time range the time, suppose that preestablishing time set is 15 hours, just the previous day ballast conduction time when being no more than 15 hours, do not change operational mode, the pattern numbering of record is constant, and operational mode is constant.When the conversion in season need change operational mode, conduction time was above 15 hours, microprocessor detected conduction time above 15 hours, then be transformed to next group control model, change the mode record in the memory simultaneously, thereby reach the function of automatic conversion timing mode, operational mode can have two kinds or many groups, according to the conversion varying cyclically operational mode in the four seasons.

The utility model beneficial effect is, not only made things convenient for road lighting but also effective saves energy.

Darkness in winter early (general 17 just need to open street lighting), the words of 23 light modulations need be delayed time 6 hours, and darkness in summer evening (turning on light for 19), 23 light modulations only need time-delay 4 hours.

If the light modulation time unification is set at time-delay 5 hours, so in the winter time, put forward previous hour 22 illumination of naming a person for a particular job and turn down, people's car is also many on the road at this moment, and low-light (level) can cause current inconvenience even accidents caused easily.And the light modulation time in summer will postpone one hour, and this hour people's vehicle flowrate seldom, do not need so high brightness, cause energy waste.

The utility model can be set a plurality of delay times by light adjusting circuit, changes a plurality of delay times automatically, is set at time-delay as pattern 1 and falls power in 6 hours, and pattern 2 is set at time-delay and fell power in 4 hours.Adjust to the time that needs time-delay in Various Seasonal like this, both made things convenient for the demand of road lighting, saved electric energy again.

Description of drawings

Fig. 1 is the principle schematic of embodiment 1 and embodiment 2.

Fig. 2 is the principle schematic of embodiment 3.

Embodiment

Embodiment 1

As Fig. 1, EMI filtered electrical routing capacitance and common mode inductance are formed, the 220V power supply is through EMI filtering, after the bridge rectifier rectification, be adjusted to stable 400V direct voltage by the APFC power factor correction circuit, being converted to high-frequency ac by half-bridge inversion circuit then uses for fluorescent tube after current limliting, half-bridge inversion circuit is made up of field effect transistor and half-bridge drive circuit, control circuit detects the electric current of half-bridge inversion circuit output, the frequency of the driving of the big or small calculation control half-bridge inversion circuit by detecting electric current, the high-frequency ac frequency of half-bridge inversion circuit output is changed thereupon in proportion, light adjusting circuit comprises microprocessor, memory and peripheral circuit etc., microprocessor can be set multiple time-delay light-modulating mode, and present embodiment is set four kinds of time-delay light-modulating modes:

Pattern 1, light a lamp 18 o'clock every days, delays time and reduced to the half-power operation in 5 hours, and the working mode change time is 11 hours.

Pattern 2, light a lamp 19 o'clock every days, delays time and reduced to the half-power operation in 4 hours, and the working mode change time is 9 hours.

Mode 3, light a lamp 18 o'clock every days, delays time and reduced to the half-power operation in 5 hours, and the working mode change time is 11 hours.

Pattern 4, light a lamp 17 o'clock every days, delays time and reduced to the half-power operation in 6 hours, and the working mode change time is 12 hours.

Pattern 1, when microprocessor calls light-modulating mode 1 in the memory, every day 18 o'clock street lamp starting points lamp, this moment, ballast was full power output, street lamp brightness is the brightest, light adjusting circuit is delayed time instruction of 5 hours () output at promptly 23 o'clock to frequency control circuit after lighting a lamp, control circuit is exported control signal after detecting the instruction of light adjusting circuit, and the output frequency of control half-bridge circuit raises, and through current-limiting inductance ballast output power is reduced, thereby electric energy is saved in the brightness of turning down street lamp, and light a lamp every day Be less than11 hours (is at 5 o'clock next day Before) normally turn off the light (outage), mode of operation is constant; When needs were converted to pattern 2, during from bright lamp, ballast was energized to 11 hours More than, the ballast on the same day of microprocessor records surpasses 11 hours conduction time, and then Cun Chu mode record will be automatically converted to 2, the second days microprocessors of pattern with direct invocation pattern 2; Pattern 2, the microprocessor invocation pattern is recorded as pattern 2 when turning on light, and light a lamp 19 o'clock every days, and delay time 4 hours (promptly 23 o'clock) reduce to half-power operation, light a lamp to be less than 9 hours (before being at 4 o'clock next day) normally turns off the light (outage), and mode of operation is constant; When needs were converted to mode 3, during from bright lamp, ballast did not cut off the power supply, be energized to more than 9 hours, the ballast on the same day of microprocessor records surpasses 9 hours conduction time, and the mode record of storage will be automatically converted to mode 3, second day direct invocation pattern 3 of microprocessor; Mode 3, when microcontroller called mode record in the memory and is mode 3, lit a lamp 18 o'clock every days, and delay time 5 hours (promptly 23 o'clock) reduce to the half-power operation, and lighting a lamp, to be less than 11 hours (be at 5 o'clock next day Before) normally turn off the light (outage), mode of operation is constant; When needs were converted to pattern 4, during from bright lamp, ballast did not cut off the power supply, and energising surpasses 11 hours, and the mode record of storage will be automatically converted to 4, the second days direct invocation patterns 4 of microprocessor of pattern; Pattern 4, when microcontroller called mode record in the memory and is pattern 4, lit a lamp 17 o'clock every days, and delay time 6 hours (promptly 23 o'clock) reduce to the half-power operation, light a lamp to be less than 12 hours (before being at 5 o'clock next day) normally turns off the light (outage), and mode of operation is constant; When needs were converted to pattern 1, during from bright lamp, microcontroller can be turned off the light automatically in 12 hours, and do not cut off the power supply this moment, continued energising and surpassed 12 hours, and the mode record of storage will be automatically converted to 1, the second day direct invocation pattern 1 of microprocessor of pattern; The light-modulating mode of whole ballast is exactly constantly circulation so throughout the year.

Embodiment 2

Present embodiment is that with the difference of embodiment 1 light-modulating mode of circuit setting is different, and present embodiment is set 2 kinds of time-delay light-modulating modes:

Pattern 1, after lighting a lamp, the 90% power operation of delaying time and reducing to full power in 2 hours is delayed time and was reduced to the half-power operation in 4 hours, and power output is 0 after lighting a lamp 9 hours, is set at energising 10 hours change-over time.

Pattern 2, after lighting a lamp, the 90% power operation of delaying time and reducing to full power in 3 hours is delayed time and was reduced to the half-power operation in 6 hours, reduces to 0 power after lighting a lamp 12 hours, is set at energising 13 hours change-over time.

When microcontroller calls light-modulating mode 1 in the memory, every day 19 o'clock street lamp starting points lamp, this moment, the power output of ballast was a total power, street lamp brightness is the brightest, the operation of 90% power was reduced in adjusting control circuit timing in energising after lighting a lamp 2 hours, reduced to the operation of 50% power after lighting a lamp 4 hours, when the time of lighting a lamp less than 10 hours, mode of operation is constant; When needs change mode of operation, conduction time was above 10 hours, for (after daybreak) no longer bright lamp after ensureing 9 hours, simultaneously can ensure normal mode switch again, microprocessor is controlled ballast output power when lighting a lamp 9 hours be 0 to close street lamp, but this moment, control circuit such as microprocessor circuit kept "on" position up to manually cutting out general supply, control circuit conduction time on the same day of microprocessor records was above 10 hours, then Cun Chu mode record will be automatically converted to 2, the second days microprocessors of pattern with direct invocation pattern 2;

When microcontroller calls light-modulating mode 2 in the memory, every day 17 o'clock street lamp starting points lamp, this moment, the power output of ballast was a total power, street lamp brightness is the brightest, adjusting control circuit timing in energising, the control power output is 90% after 3 hours, the control ballast is output as 50% power after 6 hours, when the time of lighting a lamp less than 13 hours, mode of operation is constant, when needs change mode of operation, conduction time was above 13 hours, for (after daybreak) no longer bright lamp after ensureing 12 hours, simultaneously can ensure normal mode switch again, microprocessor controls when lighting a lamp 12 hours and is output as 0 and cuts out street lamp, but this moment, adjusting control circuit kept "on" position up to manually closing general supply, the control circuit on the same day of microprocessor records surpasses 13 hours conduction time, and then Cun Chu mode record will be automatically converted to 1, the second day microprocessor of pattern with direct invocation pattern 1.

Embodiment 3

The difference of present embodiment and front embodiment is that circuit of electronic ballast adopts the low frequency full bridge electric ballast, as Fig. 2, EMI filtered electrical routing capacitance and common mode inductance are formed, the 220V power supply is through EMI filtering, after the bridge rectifier rectification, be adjusted to stable 400V direct voltage by the APFC circuit of power factor correction, by BUCK circuit (buck translation circuit) voltage and current is controlled then and adjusted, the full bridge inverter of back level is interchange with DC converting, use for high-voltage gas discharging light, control circuit to output current and voltage sample after, the output current and the voltage of control BUCK circuit, to keep permanent power output, in the high-voltage gas discharging light start-up course, firing circuit produces 3-4 kilovolt high pressure and lights high-voltage gas discharging light.Light adjusting circuit control BUCK circuit is by the power output of operational mode control ballast.

Claims

1. high-voltage gas discharging light dimming electronic drive circuit, comprise circuit of electronic ballast and light adjusting circuit, it is characterized in that, control circuit in the described circuit of electronic ballast connects light adjusting circuit, light adjusting circuit comprises microprocessor and memory, memory is used to store multiple light-modulating mode, and microprocessor calls predefined light-modulating mode according to the difference of power on circuitry time.

2. according to a kind of high-voltage gas discharging light dimming electronic drive circuit described in the claim 1, it is characterized in that: described circuit of electronic ballast comprises the EMI filter circuit, the EMI filter circuit connects bridge rectifier, bridge rectifier connects the APFC power factor correction circuit, the APFC power factor correction circuit connects inverter circuit, inverter circuit connects control circuit and current-limiting inductance, current-limiting inductance connects high-voltage gas discharging light, high-voltage gas discharging light tie point ignition circuit, control circuit connects light adjusting circuit.

3. according to a kind of high-voltage gas discharging light dimming electronic drive circuit described in the claim 1, it is characterized in that: described circuit of electronic ballast comprises the EMI filter circuit, the EMI filter circuit connects bridge rectifier, bridge rectifier connects the APFC circuit of power factor correction, the APFC circuit of power factor correction connects the BUCK circuit, the BUCK circuit connects full bridge inverter, full bridge inverter connects fluorescent tube, fluorescent tube tie point ignition circuit, the BUCK circuit is connected with control circuit, and control circuit connects light adjusting circuit.