Power Supply Basics

Remote Sense – Common Mistakes & Remedies [part 6]

Posted by Dulcie on July 12, 2013
Posted in: Power Supply Basics

What to do if you are not using the remote sense feature

In cases where the remote sense feature is not used, the remote sense lines should not be left open for optimum load regulation; instead, a local sense configuration should be set up.

Schematic of power supply with ‘local sense’ jumpers installed

Schematic of power supply with ‘local sense’ jumpers installed

To set up a local sense circuit, the +ve and –ve sense lines should be either:

1. Connected to their corresponding local sense (LS) terminals, which are provided on many power supplies
2. Connected to their corresponding +Vout and –Vout terminals.

Most power supplies are shipped from the factory with local sense jumpers installed on the power supply, see red and black jumper wires on left image, or with sense screw terminals connected to the output screw terminals with metal jumpers, as shown on the right image.

To read more about how to use the remote sense, please visit: www.emea.lambda.tdk.com/uk/faq

In the meantime, if you have a question you’d like to ask TDK-Lambda, please feel free to use the online FAQ form and we’ll get back to you with an answer to your question as soon as possible.