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| MAC16MG资料 | |
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MAC16MG PDF Download |
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File Size : 116 KB
Manufacturer:ONS Description:The ballast control section consists of R18, R19, R20, C12, C13, C15, D10, M3 and the IR2153 ballast controller IC (IC3), and is responsible for driving the half-bridge output at different operating conditions: preheat, ignition and running. During preheat, the half-bridge is driven at a fixed frequency for a fixed duration of time so the lamp cathodes can be heated to their correct emission temperature. This maximizes the life of the filament coating and therefore the life of the lamp. Furthermore, lower ignition voltages and currents are needed to ignite the lamp, which reduce the maximum voltage and current ratings of the lamp resonant circuit (L4, L5, C21, C23), as well as the half-bridge power MOSFETs (M4, M5). After preheat, the frequency is then swept lower through the resonance frequency to the final running frequency where the lamp is driven to the manufacturers recommended lamp power rating for the desired lamp type. As the frequency passes through resonance, the lamp ignites when the required ignition voltage is reached across the lamp. To achieve the various operating conditions, the corresponding frequencies are programmed with the RT and CT pins of the IR2153. C13 and C15 are first connected in series to define the preheat frequency where, |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：MAC16MG 厂 家：ONS 封 装： 批 号：0730/072 数 量：10564 说 明：Bid Price |
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运 费： 所在地： 新旧程度： |
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| 联系人：刘先生，罗小姐，刘小姐，刘先生，王先生 |
| 电 话：0086-755-83576094,83576097,83576087,83576084,83979425 |
| 手 机：0086-(0)13728684091 |
| QQ：2355773149,2355773142,61991728 |
| MSN：franlmk168@live.cn |
| 传 真：86-755-83576061 |
| EMail：sales@xgf-ic.com, kupan_ic@126.com |
| 公司地址： 深圳市龙岗区龙岗街道龙岗大道远洋新干线晶钻广场2栋B座2915房 |
