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How To Avoid Switching Regulator Frequency Interference From Torex

Symmetry Electronics Team in Blogs on September 19, 2016

About Symmetry Electronics Team

Established in 1998, Symmetry Electronics is a focused global distributor of wireless connectivity solutions, sensors, and audio-video technologies. Offering comprehensive design support and available-to-ship inventory, Symmetry is committed to helping engineers accelerate time to market, reduce costs, and offer modern solutions for their IoT designs. Acquired by the Berkshire Hathaway company TTI, Inc. in 2017, Symmetry Electronics is headquartered in Los Angeles with international offices in Mexico, Canada, and China.

To avoid switching regulator frequency interference from Torex:

A switching regulator periodically switches the current ON/OFF to convert the output to a desired output voltage. This provides higher efficiency than a linear regulator which loses some power as heat when converting the output voltage, but also has the disadvantage of switching-generated noise. In particular, interference with AM radio frequencies is a problem. 

To avoid this frequency interference, switching regulators that allow changing of the switching frequency have been developed. These regulators let you set a switching frequency that avoids frequency bands where there is a concern of interference, such as AM radio.



Torex's "XC9252 series" and "XC9270/XC9271 series" of high withstand voltage DC/DC converters are synchronized to an external clock, and this enables the switching frequency to be varied within a range of ±25%. On the "XC9252 series", an external resistance can be used to set any frequency.

A variety of techniques are needed for selecting components for car electronics. 
Torex has a professional group that specializes in power ICs.


For additional Torex product information or technical support, contact Symmetry Electronics, an authorized distributor of industry leading wireless, audio/video and embedded chips, modules and dev/eval tools. www.symmetryelectronics.com/contact-us or call (877) 466-9722.

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Symmetry Electronics Team in Blogs on September 19, 2016

About Symmetry Electronics Team

Established in 1998, Symmetry Electronics is a focused global distributor of wireless connectivity solutions, sensors, and audio-video technologies. Offering comprehensive design support and available-to-ship inventory, Symmetry is committed to helping engineers accelerate time to market, reduce costs, and offer modern solutions for their IoT designs. Acquired by the Berkshire Hathaway company TTI, Inc. in 2017, Symmetry Electronics is headquartered in Los Angeles with international offices in Mexico, Canada, and China.

Why partner with Symmetry Electronics? Symmetry's technical staff is specially trained by our suppliers to provide a comprehensive level of technical support. Our in-house Applications Engineers provide free design services to help customers early in the design cycle, providing solutions to save them time, money and frustration. Contact Symmetry for more information.

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