Mains power operated LED driver ICs costs 0.7$ each
ST Microelectronics has unveiled new family of mains-operated LED lamp drivers for driving LED lamps inside retrofit lamps featuring primary-side current regulation.
LED lighting, including retrofit bulbs, is expected to account for 80% of the lighting market by 2020 or sooner. Primary-Side Regulation (PSR) cuts bill-of-materials costs for retrofit bulbs, thereby reducing the payback time,led spotlight For example, there are some LED "candles" that charge the day and are ready for use at night. This can be somewhat impractical since one must remember to place the lights in an area where they can receive direct sunlight every day. while also simplifying design and reducing the space occupied by LED control circuitry.
The new HVLED805 integrates an 800V avalanche-rugged MOSFET,led lighting LED technology can be found at a lot of gadgets these days and these have become trendy gifts that people give to their loved ones during special occasions. achieved using ST's high-voltage integration process, which is higher than in competing devices and hence offers greater reliability, claims ST. The high-voltage on-chip startup circuitry allows the device to start reliably when the AC line voltage is applied to the lamp.
Primary-side regulation maintains the constant LED current that is needed to ensure consistent light output, without requiring the current-sensing components and opto-coupler used in conventional secondary-side regulation. The elimination of these components decreases the cost and size of the LED driving circuitry and saves current-sensing losses, improving overall efficiency.
Using PSR, the HVLED805 guarantees LED current regulation to within 5% accuracy. Reliability is also enhanced,sky lanterns There are many styles of solar lighting that can be used. They are primarily for outside lighting. However, there are some that can be used for indoor lights. due to the elimination of the opto-coupler in the secondary side, whose degradation can significantly decrease the mean-time-between-failure of the lamp.
The HVLED805 PSR controller integrates high-voltage startup for efficient power-on, and the robust 800V power MOSFET allows a reduction of the snubber network.fluorescent lights Most solar lights use incandescent or fluorescent bulbs. These consume a lot of power and thus drain the batteries quickly. This means that standard solar lights only last for a few hours after it becomes dark. The highly efficient quasi-resonant (QR) operating mode further boosts energy savings for LED lighting and dramatically reduces the EMI filtering required, saving space and costs.マジコンds LED bulbs will start to fade and not be as bright when they start to run out so you will always have time to get more or change the bulb, also you will still be able to use the bulb for a while longer.
ST Microelectronics has unveiled new family of mains-operated LED lamp drivers for driving LED lamps inside retrofit lamps featuring primary-side current regulation.
LED lighting, including retrofit bulbs, is expected to account for 80% of the lighting market by 2020 or sooner. Primary-Side Regulation (PSR) cuts bill-of-materials costs for retrofit bulbs, thereby reducing the payback time,led spotlight For example, there are some LED "candles" that charge the day and are ready for use at night. This can be somewhat impractical since one must remember to place the lights in an area where they can receive direct sunlight every day. while also simplifying design and reducing the space occupied by LED control circuitry.
The new HVLED805 integrates an 800V avalanche-rugged MOSFET,led lighting LED technology can be found at a lot of gadgets these days and these have become trendy gifts that people give to their loved ones during special occasions. achieved using ST's high-voltage integration process, which is higher than in competing devices and hence offers greater reliability, claims ST. The high-voltage on-chip startup circuitry allows the device to start reliably when the AC line voltage is applied to the lamp.
Primary-side regulation maintains the constant LED current that is needed to ensure consistent light output, without requiring the current-sensing components and opto-coupler used in conventional secondary-side regulation. The elimination of these components decreases the cost and size of the LED driving circuitry and saves current-sensing losses, improving overall efficiency.
Using PSR, the HVLED805 guarantees LED current regulation to within 5% accuracy. Reliability is also enhanced,sky lanterns There are many styles of solar lighting that can be used. They are primarily for outside lighting. However, there are some that can be used for indoor lights. due to the elimination of the opto-coupler in the secondary side, whose degradation can significantly decrease the mean-time-between-failure of the lamp.
The HVLED805 PSR controller integrates high-voltage startup for efficient power-on, and the robust 800V power MOSFET allows a reduction of the snubber network.fluorescent lights Most solar lights use incandescent or fluorescent bulbs. These consume a lot of power and thus drain the batteries quickly. This means that standard solar lights only last for a few hours after it becomes dark. The highly efficient quasi-resonant (QR) operating mode further boosts energy savings for LED lighting and dramatically reduces the EMI filtering required, saving space and costs.マジコンds LED bulbs will start to fade and not be as bright when they start to run out so you will always have time to get more or change the bulb, also you will still be able to use the bulb for a while longer.
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