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The fluorescent lamp ballast is designed and transforming to all electronic lighting systems. Compared with device five years ago, the mature electronic ballast technology can be offered better characteristic with lower system cost now day by day. IR2166 and IR2167 control integrated circuit whether most of new generation electronic ballast control representative of integrated circuit among them. In order to understand the relevant characteristics of these two kinds of integrated circuit, we see first they can remedy the characteristic advantage of the magnetic ballast weak point, including:
It is lighted that flicker free
There is no audible noise
Increase power factor correction easily
The flashing consideration of the electric light is very important, because the magnetic ballast will glimmer when 60Hz works. In contrast to it, electronic ballast change high frequency into the intersection of 60Hz and power, so it glimmer, reduce electric light to, experience competence. In addition, high frequency produces less one hotly, efficiency is higher too.
The magnetic ballast will produce the audible noise, in the core electromagnetic element of 60Hz because of its using operation, it is not to send out the audible exchange hum to design the outstanding high-frequency electronic ballast.
Power factor correction (PFC) Can add to all typological electronic ballasts very easily, but very difficult for magnetic ballast. PFC circuit can revise the alternating current, makes input voltage and electric current transfer to a sine wave, and it is pygmy to make the harmonic content. In addition, is raised the efficiency too by the high power factor that PFC circuit is received and reduces the cost. The harmonic goal of the ballast is to keep the international standard IEC 61000-3-2 C grade less than harmonic current of the lighting system limiting.
Power factor correction and total harmonic distortion (THD, namely the harmonic wave of power produced by ballast) Also there are relations. Any harmonic wave produced by ballast will cause bad influence on other electronic systems connected to the same power too. The power factor means the input power the pure wave and does not have harmonic distortion (THD for 1.0 =0%) ,So preferably there is a high power factor (PF) And low THD.
After determining to adopt all electronic schemes, the designer needs to consider a plurality of used in the lighting system and control the characteristic of IC. These characteristics can influence the whole system cost of the electronic ballast. The cost factor of maximum is probably the quantity of using the component, it influences hardware preserving, component overall arrangement and whole engineering, the master problem is:
Can the one piece IC offer the intact ballast to control? The one piece IC has reduced the cost of the hardware, has simplified the ballast to the interface of the light.
Is IC suitable for light type and size of the wide-range? Storing the one piece IC suitable for all system configurations can reduce the hardware stock.
Control whether IC can programmed, in order to set up the system feature according to the applied requirement? So can make system design more flexible.
Is IC the built-in power factor correction (PFC) ? The built-in PFC circuit can reduce the whole number of elements.
Are there demonstrating boards? It can simplify the design of the lighting system.
Does the demonstrating board have computer aided design softwares? Time that it can help the designer and reduce the products and put on market.
The answer that IR2166 and IR2167 give the question above is all " " . The older generation electronic ballast control device adopts a sep control IC, gate drive IC and PFC IC, and IR2166 and IR2167 adopt the single chip scheme, lowers the system cost. Besides reducing the number of elements, these IC simplifies installation too, improves reliability and saves the time of designing. In addition, the time that they reduce the new fluorescent lamp lighting system and put on market too.
IR2166 device has state machines in order to control the working sequence of the ballast, including Under Voltage Lock Out, preheats, touches off, runs and failure mode. This chip integrates programmable preheating time and frequency, can heat the filament to the appropriate transmission temperature. This kind of characteristic can lengthen the electric light life-span 30 times of Damien, reduce the required trigger voltage at the same time. Programming Dead Time, preheating and characteristic of the frequency of running enable IR2166 through can adapt a lot of different typological lights when revising the component brieflying. In addition, general 90V can be designed for simplified circuit of global market 260V ac input, lower the need of carrying on special planning for different areas.
The fluorescent lamp ballast is designed and transforming to all electronic lighting systems. Compared with device five years ago, the mature electronic ballast technology can be offered better characteristic with lower system cost now day by day. IR2166 and IR2167 control integrated circuit whether most of new generation electronic ballast control representative of integrated circuit among them. In order to understand the relevant characteristics of these two kinds of integrated circuit, we see first they can remedy the characteristic advantage of the magnetic ballast weak point, including:
It is lighted that flicker free
There is no audible noise
Increase power factor correction easily
The flashing consideration of the electric light is very important, because the magnetic ballast will glimmer when 60Hz works. In contrast to it, electronic ballast change high frequency into the intersection of 60Hz and power, so it glimmer, reduce electric light to, experience competence. In addition, high frequency produces less one hotly, efficiency is higher too.
The magnetic ballast will produce the audible noise, in the core electromagnetic element of 60Hz because of its using operation, it is not to send out the audible exchange hum to design the outstanding high-frequency electronic ballast.
Power factor correction (PFC) Can add to all typological electronic ballasts very easily, but very difficult for magnetic ballast. PFC circuit can revise the alternating current, makes input voltage and electric current transfer to a sine wave, and it is pygmy to make the harmonic content. In addition, is raised the efficiency too by the high power factor that PFC circuit is received and reduces the cost. The harmonic goal of the ballast is to keep the international standard IEC 61000-3-2 C grade less than harmonic current of the lighting system limiting.
Power factor correction and total harmonic distortion (THD, namely the harmonic wave of power produced by ballast) Also there are relations. Any harmonic wave produced by ballast will cause bad influence on other electronic systems connected to the same power too. The power factor means the input power the pure wave and does not have harmonic distortion (THD for 1.0 =0%) ,So preferably there is a high power factor (PF) And low THD.
After determining to adopt all electronic schemes, the designer needs to consider a plurality of used in the lighting system and control the characteristic of IC. These characteristics can influence the whole system cost of the electronic ballast. The cost factor of maximum is probably the quantity of using the component, it influences hardware preserving, component overall arrangement and whole engineering, the master problem is:
Can the one piece IC offer the intact ballast to control? The one piece IC has reduced the cost of the hardware, has simplified the ballast to the interface of the light.
Is IC suitable for light type and size of the wide-range? Storing the one piece IC suitable for all system configurations can reduce the hardware stock.
Control whether IC can programmed, in order to set up the system feature according to the applied requirement? So can make system design more flexible.
Is IC the built-in power factor correction (PFC) ? The built-in PFC circuit can reduce the whole number of elements.
Are there demonstrating boards? It can simplify the design of the lighting system.
Does the demonstrating board have computer aided design softwares? Time that it can help the designer and reduce the products and put on market.
The answer that IR2166 and IR2167 give the question above is all " " . The older generation electronic ballast control device adopts a sep control IC, gate drive IC and PFC IC, and IR2166 and IR2167 adopt the single chip scheme, lowers the system cost. Besides reducing the number of elements, these IC simplifies installation too, improves reliability and saves the time of designing. In addition, the time that they reduce the new fluorescent lamp lighting system and put on market too.
IR2166 device has state machines in order to control the working sequence of the ballast, including Under Voltage Lock Out, preheats, touches off, runs and failure mode. This chip integrates programmable preheating time and frequency, can heat the filament to the appropriate transmission temperature. This kind of characteristic can lengthen the electric light life-span 30 times of Damien, reduce the required trigger voltage at the same time. Programming Dead Time, preheating and characteristic of the frequency of running enable IR2166 through can adapt a lot of different typological lights when revising the component brieflying. In addition, general 90V can be designed for simplified circuit of global market 260V ac input, lower the need of carrying on special planning for different areas.
Parameter
IR2167
IR2166
Light type
35W TL5
35W TL5
Input power
35W
38W
The light operating voltage
750Vpk-pk
600Vpk-pk
Operation frequency
42kHz
44kHz
Preheat the frequency
56kHz
57kHz
Preheating time
One second
One second
The light preheats the voltage
400Vpk-pk
660Vpk-pk
Undercurrent protection
Yes
No
Lower than the resonance point to protect
Yes
No
Protect in hot year
Yes
No
The light connects ability in parallel
Yes
No
Touch off the slope frequency
36kHz
---
Trigger voltage
2000Vpk-pk
1700Vpk-pk
Input and exchange the voltage range
80-260Vac(rms)
90-260Vac(rms)
Power factor
0.99 @120Vac
0.995 @120Vac
Total harmonic distortion
< 10% @ 120Vac
< 10% @ 120Vac
Capsulate the connecting pin
20
16
Table 1: IR2166 and IR2167 demonstrating board characteristic
Fig. 1: IR2167 ballast control system
Picture 1: IR2166 fluorescent lamp ballast control device and demonstrating board
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