Teardown of an ATVR-1000D AC voltage regulator

Posted on Monday, November 27th, 2017 in Teardowns by DP


Kerry Wong did a teardown of an ATVR-1000D automatic AC voltage regulator and discussed how different types of AC regulators work:

The ATVR-1000D utilizes a motor to drive the wiper of a autotransformer (Variac), the servo motor can be driven in either direction depending on the output from the OpAmp (LM324) based comparator. Comparing to a voltage regulator that uses relays for tap-switching, this type of servo-driven voltage regulator has several advantages. It offers continuous voltage adjustments as opposed to the limited discrete steps offered by relay-switching regulators. Also the output waveform is continuous.

See the full post on his blog.

Check out the video after the break.

This entry was posted on Monday, November 27th, 2017 at 11:17 pm and is filed under Teardowns. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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