Category Archives: Power Electronics

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High Power LED Controller

The LDS9003 is a 3-channel and LDS9001 is a 1-channel LED junction temperature monitor and control device intended for use in high power LED solid state lighting applications. It connects directly to a LED anode and the PWM input of available high power HB drivers to real-time adjust LED current to meet maximum LED temperature.…

30 W DC-DC Converter with DPA424

This article is an engineering prototype report of a 30 W DC-DC converter using DPA424. It operates in an input voltage ranging from 36 VDC to 72 VDC and delivers an output of 5 V at 6 A. It is designed for telecom applications. This design features very low component count, high efficiency, no heat…

DC to DC Converter Circuits

60-mA current-source feeds telecomm lines -  12/18/97 EDN-Design Ideas An isolated 60-mA current source provides 120V of compliance for use in telecommunication interfaces (Figure 1). Constant-current line feed provides dc power for downstream circuitry independent of line length and provides inherent short-circuit protection. The key to isolated.... [Design Idea by Kurk Mathews, Linear Technology Corp,…