Evaluation of Electronic Ballasts for Hf Fluorescent Lamps

The development of Hf (high frequency operation special type) fluorescent lamps is based on the premise of reducing the input high frequency current. By making full use of the characteristics of fluorescent lamps, efforts have been made to improve the efficiency of electronic ballasts and add dimming functions to save energy. In addition, the pressure at startup is reduced, the flicker of fluorescent lamps is suppressed, and the competitiveness of products is strengthened.

Features

For an oscillation frequency of 50kHz, there is sufficient bandwidth.

Measurement of fluctuation signals.

The interval for averaging the input waveform data can be specified.

· Specially designed for high frequency universal voltage.

structure

1. Measurement of boost converter and converter input and output current, electric power and efficiency.

2. Confirmation of inductor current and commercial high frequency (no corresponding standard).

3. Check the change in control power loss during startup.

4. Confirm the control load when the converter starts and the loss of each mode load.

5. Confirmation of dimming control (confirmation of ON time and load loss).

Key points of PZ4000

Since the electric power numerical calculation is performed using the same data as the displayed waveform, the measurement result is highly reliable.

· Calculation using memory waveform data collected at a high sampling rate enables high-precision measurement.

Capable of direct input, which reduces measurement errors compared to when using isolation amplifiers and current probes.