Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 30,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematics Discover Forum Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


 

AC to AC Converters (AC to AC Power Supplies and Transformer Circuits)   Page 1
AC to AC:  #-A       B-F      G-I      J        K-O       P-S      T-Z
         
Converters -- Main Page

Last Updated on: Tuesday, April 01, 2014 04:28 AM

Circuits Designed by Dave Johnson, P.E. :
  • ISOLATED AC CURRENT MONITOR
    This circuit uses a small AC current transformer from Magnetek to produce an isolated voltage proportional to the AC current in the primary winding.  The transformer contains a single turn primary with a low 0.001-ohm resistance.  It can easily handle 30 amps of AC current and provides at least 500vac of isolation.  With the components shown, the output AC voltage is scaled so 1 amp of current produces 100mv of AC voltage.

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

150 Ohm Line to 600 Ohm Load Application -  AS011 Jenson Transformer Application Note.  Isolation transformer with impedance conversion  (app note 04/03/02)
2-Way Passive Guitar Splitter -  AS013 Jenson Transformer Application Note.  From one guitar to two guitar amplifiers  (app note 04/03/02)
4-Way Active Guitar Splitter -  AS014 Jenson Transformer Application Note.  From one guitar to up to four guitar amplifiers  (app note 04/03/02)
50 Ohm Long Line Driver -  AS029 Jenson Transformer Application Note  (app note 6/07)
50 Ohm Long Line Receiver & Driver -  AS028 Jenson Transformer Application Note  (app note 6/07)
600 Ohm Line Isolation Application -  AS010 Jenson Transformer Application Note.  Isolation transformer for 600 ohm balanced audio line  (app note 04/03/02)
A Zero-Feedback SRPP-Input Headphone Amplifier -  Features a series regulated push-pull input stage and transformer-coupled output stage with an output impedance of about 2.5 ohms. It has zero global feedback for open, natural sound without any harshness.  Designed by Simon Busbridge  (Circuit design added 04/05/06)
AC Couple Analog Signals without a DC Bias Source -  02/03/00 EDN-Design Ideas  A conventional ac-coupling circuit in a single-supply system comprises a series capacitor and a shunt resistor to ground. Unfortunately,  negative peaks of  input signal can exceed 0.3V input operating-range limits of an ADC, such as  LTC1402 serial 12-bit sampling ADC. To avoid going below ground,  circuit must return  shunt input.... [Design Idea by Joseph Luis Sousa, Linear Technology Corp, North Chelmsford, MA]

Additional RFI Protection for Line Input Circuits -  AS072 Jenson Transformer Application Note  (app note 5/02)
Algorithm Tests for Point Location -  08/03/00 EDN-Design Ideas  A recent software project approximated the phase-space trajectory (also known as a strange attractor) of a certain dynamic system by using several nonoverlapping triangles. It became necessary to determine whether particular operating points were on or off that attractor. Determining whether a circle or a rectangle contains a point is trivial.... [Design Idea by Lawrence Arendt, Manitoba HVDC Research Centre, Winnipeg, Canada]
Algorithm Transforms Filter Coefficients -  01/21/99 EDN-Design Ideas  To synsize infinite-impulse-response (IIR]-filter functions, expressed as H(z], you commonly use analog prototype-filter functions, expressed as H(s], using  bilinear-z transform.  This operation entails some algebraic complexity in calculating  filter coefficients. The simple algorithm shown here transforms  prototype-filter coefficients (W0, W1, W2]to  IIR digital-filter coefficients (U0, U1, U2]. These coefficients transform from.... [Design Idea by Frank Vitaljic, Bellingham, WA]
Alway On Signal Sensing Subwoofer Mute Circuit -  AS101 Jenson Transformer Application Note  (app note 6/07)
An Acoustic Transformer Powered Super-High Isolation Amplifier -  National Semiconductor Application Note  (app note added 6/06)
AN134 AES & SPDIF Recommended Transformers -  (app note added 6/07)
AN-285: An Acoustic Transformer Powered Super-High Isolation Amplifier -  National Semiconductor Application Note  (app note added 6/06)
Anti-RIAA Equalizer for Line to Mag Phono Converter -  AS071 Jenson Transformer Application Note  (app note 6/07)

AC to AC:  #-A       B-F      G-I      J        K-O       P-S      T-Z
         
Converters -- Main Page

 



HOME Schematics Discover Forum Hobby Corner Dave's Circuits Electronic Resources Contact Info


 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy

Copyright  2002 - 2013 David A. Johnson & Associates.  All Rights reserved. 
 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.