This is a design example report of a 40 W power supply employing TOP256EN. It supplies a 19 V, 2.1 A output and operates at 90 VAC to 265 VAC input voltage range. This power supply serves as a general ...

Using TOP269EG off-line switcher IC, (U1), in a flyback configuration can be designed a very simple high efficiency notebok laptop power adapter.TOP269EG IC has an integrated 725 V MOSFET and a ...

The incredible shrinking notebook adapter is a welcome trend. For a while there, portable computers kept getting thinner and lighter while still shipping with massive power bricks. And while notebook ...

A new device - essentially a docking station with a built-in power supply - may give some indication as to what the chargers for the best laptops of the future may be. The Sparkle TC-9321L docking ...

Laptop power banks hit a happy medium between capacity and portability. Capacity is usually below 100-watt hours to comply with TSA requirements for carry-on luggage. Since most batteries are listed ...

Modern power banks have long provided enough power to reliably charge not only smartphones but also laptops. But not every model is suitable for laptop charging. To make sure you don’t spend money on ...

A power supply for electronic devices. Also called an "AC adapter" or "charger," power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages, and ...

Picking out a PC power supply is a lot more challenging than it might seem at a glance. While there are always plenty of reviews of the best processors and top graphics cards, Power supply units (PSUs ...

My girlfriend has an old HP laptop, but needs a second charger for her current Toshiba. I've checked the details of both chargers, and just need a sanity check before I plug the HP's charger into the ...