Power supply suitable for dry and damp locations
Power Sources Unlimited
LD015D power supply
Power Sources Unlimited has announced the LD015D Series AC-DC Constant Current LED driver power supply, which is fully potted and suitable for dry and damp locations.
It adheres to UL1310 Class 2 Safety Standards (110V AC) or CE compliancy (230V AC).
Features include input voltage of 110 or 230V AC, DC output ranges from 8 to 48V DC and wide selection of pre-adjusted constant current outputs.
Other features include: operating temperature range of -20 to 60C, phase dimmable, compatible with standard Triac and electronic low-voltage dimmers; and 82 per cent efficient typical.
Units are RoHS compliant, Reach compliant, FCC Class B, CE, EN61000-4, 2, 3, 4, 5, 6, 8, 11 and UL.cUL safety certified, and carry a three-year warranty.
The Eltek Valere Flatpack2 HE Series of rectifiers has been introduced into the global telecommunications market, offering a conversion efficiency up to 96.5 per cent and a 50 per cent reduction in wasted energy, according to Power Sources Unlimited.
Linear Technology has introduced the automotive (H-grade) and high-reliability military (MP-grade) versions of the LT4320, which is a suitable diode bridge controller for 9–72V systems.
This document from Power Integrations is an engineering report describing a non-isolated LED driver (power supply) utilising a LNK458KG from the Linkswitch-PL family of devices.
Linear Technology has launched the LT8301, a monolithic flyback regulator that simplifies the design of isolated DC/DC converters. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no opto-isolator or third winding for regulation.
This design idea presents the Linkswitch TN as used in a high-efficiency constant current buck converter for LED lighting to deliver a constant current of 130mA at a voltage of 70VDC.