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New Products
March 22, 2012
Power Integrations Announces First LED-Driver Design for Replacement of 100W A19 Incandescent Bulbs
Power Integrations announced an LED-driver reference design for high-power LED bulb replacement. The driver can deliver the power required for a 100 W incandescent bulb replacement in an A19 form factor - an industry first. DER-322 describes a non-isolated, 93% efficient, high-power-factor (PF) LED driver designed to drive a nominal LED string voltage of 78 V at 230mA from an input voltage range of 195 VAC to 265 VAC (47 Hz – 63 Hz). The LED driver utilizes the very low-profile LNK460VG from the LinkSwitch™-PL family of ICs from Power Integrations.
DER-322 fits neatly inside the A19 form factor, is EN61000-3-2 C (D) compliant and easily passes THD limits. With a PF above 0.95, it suits commercial as well as consumer applications. With PFC and CC conversion combined into a single switching stage, the design has a very low component count, which enables miniaturization, lowers cost and increases reliability. It also eliminates short-lived electrolytic input bulk capacitors.
Commented Andrew Smith, product marketing manager at Power Integrations: "With an 8-10% efficiency advantage over older solutions, DER-322 provides a compelling option for lighting engineers working toward the landmark achievement of a commercially viable A19-sized replacement for the 100 W incandescent bulb. With LED efficacies continuing to improve, this important milestone will soon be within reach. In the meantime, the LinkSwitch-PL family of ICs easily enables production of cost-effective replacements for 60W and 75W bulbs."
Related: Touchstone Intros Ultra Low-Power, Load-Independent, High-Efficiency Boost
Suitable for an A19 incandescent bulb replacement-driver but also reconfigurable as a T8 tube replacement driver, DER-322 is of interest to designers of both high-end LED lighting and those working on cost optimization of bulbs for retail sale. The reference design may be easily modified to support TRIAC dimming.
More news and information regarding the latest developments in Smart Grid electronics can be found at Darnell’s SmartGridElectronics.Net.
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