Jun 22, 2008 · I'm designing a circuit that will take a square wave generated by a microprocessor and feeds it through a bandpass filter to get a sine wave. The application will be to provide a tone for …

Mar 19, 2008 · As a practical matter, 15 to 20 kHz is the usual switching frequency for motor drives. This is so that audable noise is not a problem. The ripple current will also be low for common values of …

Jul 10, 2018 · Marker 1 is at 100 KHz and shows my expected inductance of 106 uH (67 jOhm). That make sense. At frequencies above that the inductance increases, with Marker 2 showing 6.4K at 1.7 …

Jul 4, 2023 · 8. Set switching frequency somewhere between 3 to 5 kHz. 9. NOTE: Usual cable length tables in VFD documentation is not applicable to submersible pump application. 10. NOTE: Sine …

Sep 13, 2010 · Hi all, I need to simultaneously record the AC signal from two separate wall 120v AC signals with a scope. I've got a metal enclosure with two step-down transformers (neutral and hot of …

Apr 10, 2014 · Low-frequency power transmitters are used for special heating applications, and even the (obsolete and dismantled) Loran system used high-power tube transmitters at around 88 kHz.

Feb 4, 2006 · Looking for some sparky knowledge here. I'm designing some test equipment and need to make sure I have enough contact area to prevent heating a threaded connection beyond the point …

Jun 20, 2023 · 4) The switching frequency (for the drive) should be set somewhere between 3 and 5 kHz - note that in the OP's original post, it was indicated this had been set to 2.5 kHz. 5) According to the …

Feb 24, 2006 · A clamp-on current probe usually has a limited frequency range, but there are Fluke DC - several hundred kHz clamps. And Chauvin-Arnoux and Tektronix going well beyond 1 MHz.

Sep 10, 2008 · We use the rectified 200 to 250 volts (about 300 V DC) to feed a series resonant, 20 kHz IGBT inverter. When using isolated transformer, we ground the Wye secondary neutral point to earth …