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The new ACPL-302J is a smart gate drive optocoupler that improves isolated power supply and simpli fies gate drive design. The ACPL-302J features an integrated flyback controller for DC-DC converters and a full set of fail-safe IGBT diagnostics, protection, and fault reporting, providing a complete...

Many power supply products are marketed under the "Green Power" label meaning that they are designed to maximise efficiency across the load range (known as average active mode efficiency) and minimise power consumed at no load. Active mode efficiency is the average of four measurements made at 25,...

Generating high voltage by means of flyback topology is a common approach. Using the generated voltage to charge a capacitor for a high energy pulse are used in defibrillators, photoflashs, strobes and ignition circuits to name a few. The procedure outlined in this article is useful in the initial...

The three basic topologies used in switching power supplies are buck, also known as forward, boost and buck-boost, also known as Flyback. All three topologies use the same three elements, transistor, inductor and diode but they are arranged in different manners. The essential difference between...

...applications, one or more low-cost, simple to use, isolated power supplies working from input voltages up to 100 V are needed. Traditional solutions use flyback converters to generate this bias supply but flyback designs require more components and board space in addition to more complicated design...

(steps up the DC battery voltage to a constant high-voltage DC) 2)Full-Bridge Inverter (converts DC voltage to a sinusoidal AC output) 3)Flyback Switch Mode Charger (current source and charges battery with constant current)...

...from the DC bus. The control circuit and power circuits are optically isolated with respect to each other. An on-board fly-back power supply generates +5VD, with respect to the digital ground used for powering up the control circuit, including the PICmicro (R) device. +5VA and +15VA are generated...

). Some of the typical products in this category. include portable desk lamps, under-cabinet lights, and. outdoor porch lights. One of the most common power supply topologies for low. power offline LED drivers is an isolated flyback topology. Unfortunately standard design techniques used...

...with no isolation. Figure 1 below shows typical delay times of an optically-isolated flyback converter. The total propagation delay in the feedback loop is the sum of all delays of the components used in the feedback loop....

...as well as, for different input voltage ranges within a family. The follow up design tip may provide some assistance to system engineers. Figure 1 shows the block diagram of a flyback converter with the bias circuitry for the control IC (PWM) and the feedback loop consistent of the error OPAM A1...

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