产品概述
描述
The STEVAL-ILH005V2 demonstration board implements a two-stage electronic ballast for 150 W HID metal halide lamps. The ballast is composed of a boost converter (power factor controller PFC) working in transition mode and an inverter consisting of a full bridge that drives the lamp at low-frequency square wave.
The ballast was developed for 185 - 265 Vac 50/ 60 Hz input mains and is able to drive 150 W metal halide and high-pressure sodium lamps.
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所有功能
- Minimum mains voltage: Vac(min)= 185 V
- Maximum mains voltage: Vac(min)= 265 V
- Minimum mains frequency: fmin= 47 Hz
- Output current: Iout= 0.38 A
- Rated lamp power: PLamp= 150 W
- Expected bridge efficiency: η bridge = 95%
- Regulated DC output voltage (DC value): Vout= 420 V
- Maximum output overvoltage (DC value): ΔOVP = 50 V
- Maximum output low-frequency ripple: ΔVoutx= 20 V
- PFC minimum switching frequency: fmin= 28 kHz
- Expected PFC efficiency: η PFC= 96%
- Expected input section efficiency: η in= 99%
- Expected power factor: 0.99
- RoHS compliant