- NXP UBA2016A 35W TL5高效荧光灯电源解决方案

图4.采用UBA2016A的TL或CFL荧光灯应用电路图(火线滤波器未显示)

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图5.采用UBA2016A的TL或CFL荧光灯应用电路图(有较好PFC性能,火线滤波器未显示)

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图6.采用UBA2016A带固定时间起动的TL或CFL荧光灯应用电路图(火线滤波器未显示)

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图7.采用UBA2016A取决于灯温度起动T的L或CFL荧光灯应用电路图(火线滤波器未显示)

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图8.采用UBA2016A可调光TL荧光灯应用电路图(火线滤波器未显示)

UBA2015P参考设计(230VAC)

This document describes the specification and use of the UBA2015P board. This reference ballast design is intended to drive two TL5HE28W or TL5HE35W lamps.

The board needs to be connected to the mains voltage. Touching the board while it is connected to the mains voltage must be avoided at all times. An isolated housing is obligatory when used in uncontrolled, non laboratory environments. Galvanic isolation of the mains phase using a variable transformer is always recommended.

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图9.UBA2015P参考设计(230VAC)板外形图

参考设计(230VAC)板指标:

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参考设计(230VAC)板支持的灯:

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The input section includes:

• The fuse

• Surge protection against fast AC transients

• ElectroMagnetic Interference (EMI) filter

• Full-wave rectifier

• Preconditioner or Power Factor Correction (PFC)

The output of the PFC connects to a electrolytic buffer capacitor to supply the half-bridge circuit. The lamp connects to the half-bridge circuit. The UBA2015P controller IC controls the PFC and the half-bridge circuit.

The PFC is implemented as an up converter in boundary conduction mode. The resonant circuit is voltage fed by the half-bridge which consists of two N-channel MOSFETs. The resonant circuit includes a transformer for electrode (pre)heating.

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