Industry Information

Update August 09, 2021

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...

Update August 06, 2021

Does EMI cause interference? Where does EMI come from?

Electromagnetic interference (EMI) has become a part of our lives. Do you want to deal with it? Many people believe that the widespread use of electronic solutions is a good thing because it brings...

Update August 05, 2021

Diodes LED driver achieves high power factor to effectively improve LED lamp performance

Diodes Incorporated introduces the AC-DC LED driver AP1684 with power factor correction, which is suitable for various off-line LED lamps such as E26, GU10, PAR and T8. This device utilizes pulse...

Update August 03, 2021

Which equipment is your power adapter generally used for?

Question: Which equipment is your power adapter generally used for? Answer: Our main business is AC-DC power adapter, also called external power supply (switching power supply), which can convert...

Update June 11, 2021

How long can I extend DC cable of the driver?

Owing to line (voltage)-drop, we suggest the extension made from AC cable. In case DC cable extension is necessary, please consider Line-Drop leading to insufficient Vf so that the LED model or lamp...

Update June 10, 2021

What is a PFC Power Supply?

These charges are reduced when of PFC is used. In addition to computer systems, PFC also reduces reactive power on other equipment, including induction welders, high bay lighting and arc furnaces....

Update June 09, 2021

Is an extension cord AC or DC?

A DC power supply extension cord is used to extend the length of a standard DC power cable. DC power extension cords have a plug on one end and one or more sockets on the other. Typically, each end...

Update June 08, 2021

What is power factor in LED lighting?

What is an LED Power Factor Rating? The power factor rating is the ratio of real power (Watts) used by the load compared to apparent power (Voltage x Current drawn) into the circuit: Power factor =...

Update June 07, 2021

How do I know if my LED driver is bad?

Still Having Issues, Use a Multimeter?1.) Test the AC Input with a Voltage Multimeter. 2.) Apply your test leads to AC Power Source. 3.) Check AC Voltage Reading on Multimeter. 4.) Set Power Supply...

Update June 05, 2021

Why do Some AC Adapters and Power Supplies Make a Whining Noise?

Our AC adapters and power supplies tend to be quiet, but what does it mean when one makes a whining noise? Should you be concerned? Let's check the following case and answer: The Case: I have many...