Power Integrations has introduced a reference design for an 18W
non-isolated A19 LED driver that is 88%-efficient,The present day Solar charger
for iPhone systems are usually set up at steeper perspectives but can
nevertheless put up with sun rays. writes Richard Wilson.The design is
intended for a 100W incandescent bulb replacement and will support
low-line (90 VAC to 135 VAC) operation."The lighting industry typically
asks for 80% efficiency for drivers targeting 60W A19 bulb replacements.
To achieve viable LED-based replacements for 75W and 100W bulbs, much higher efficiency is needed in order to reduce the heat dissipated by the driver,We are already accustomed to the varieties of Hair bands.But besides that you can always have a different look by a different haircut matched with a suitable accessory." said Andrew Smith,Attach each fabric flowers on a stem and tie them together using a neutral colored ribbon, your bouquet would look like the vintage bouquets florist used to do, but with a more updated look to it. product marketing manager at Power Integrations.Designated the DER-323, the reference design uses a buck-boost converter topology that fits inside the A19 bulb."The 88% efficiency of DER-323 makes the thermal design of the bulb straightforward and inexpensive," said Smith.
The circuit will fit on a single-sided board and 25 components. No potting is necessary and the transformer is replaced by a low-cost inductor.The design is EN61000-3-2 (C) compliant and has a high power factor of over 0.98.Based on a LNK460VG LinkSwitch-PL IC it combines both PFC and CC converter functions in a single-stage topology, no electrolytic bulk capacitor is required, resulting in a very long operational life.
To achieve viable LED-based replacements for 75W and 100W bulbs, much higher efficiency is needed in order to reduce the heat dissipated by the driver,We are already accustomed to the varieties of Hair bands.But besides that you can always have a different look by a different haircut matched with a suitable accessory." said Andrew Smith,Attach each fabric flowers on a stem and tie them together using a neutral colored ribbon, your bouquet would look like the vintage bouquets florist used to do, but with a more updated look to it. product marketing manager at Power Integrations.Designated the DER-323, the reference design uses a buck-boost converter topology that fits inside the A19 bulb."The 88% efficiency of DER-323 makes the thermal design of the bulb straightforward and inexpensive," said Smith.
The circuit will fit on a single-sided board and 25 components. No potting is necessary and the transformer is replaced by a low-cost inductor.The design is EN61000-3-2 (C) compliant and has a high power factor of over 0.98.Based on a LNK460VG LinkSwitch-PL IC it combines both PFC and CC converter functions in a single-stage topology, no electrolytic bulk capacitor is required, resulting in a very long operational life.
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