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+12V/-12V Power Supply Unit - To work circuit
which used operational amplifier and so on,
positive and negative power supply become necessary.
power supply which I introduce here is one to have
used unit which has two power supplies of 12 V
in one unit. Power supply unit is using
ready-made. It inputs AC100 V and it is possible to take out
12 V of two DCs which are independent as output.
150 Ohm Line to 600 Ohm Load Application - AS011 Jenson
Transformer Application Note. Isolation transformer
with impedance conversion
2-Way Passive Guitar Splitter - AS013 Jenson Transformer
Application Note. From one guitar to two guitar
amplifiers
4-Way Active Guitar Splitter - AS014 Jenson Transformer
Application Note. From one guitar to up to four guitar
amplifiers
50 Ohm Long Line Driver - AS029 Jenson Transformer
Application Note
50 Ohm Long Line Receiver & Driver - AS028 Jenson
Transformer Application Note
600 Ohm Line Isolation Application - AS010 Jenson
Transformer Application Note. Isolation transformer
for 600 ohm balanced audio line
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
AC Couple Analog Signals without a DC Bias Source - 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....
Additional RFI Protection for Line Input Circuits -
AS072 Jenson Transformer Application Note
Algorithm Tests for Point Location - EDN-Design Ideas
Algorithm Transforms Filter Coefficients - 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 s (analog)domain to z (digital)domain....
Alway On Signal Sensing Subwoofer Mute Circuit - AS101
Jenson Transformer Application Note
An Acoustic Transformer Powered Super-High Isolation
Amplifier - National Semiconductor Application Note
AN134 AES & SPDIF Recommended Transformers
AN-285: An Acoustic Transformer Powered Super-High Isolation
Amplifier - National Semiconductor Application Note
Anti-RIAA Equalizer for Line to Mag Phono Converter -
AS071 Jenson Transformer Application Note
Balanced Line Inputs/Outputs for Silicon Graphics
workstations - AS075 Jenson Transformer Application Note
Balanced Line Level to Unbalanced Guitar Level - AS092
Jenson Transformer Application Note
Balanced Tube Line Input Stage - AS088 Jenson
Transformer Application Note
Balanced XLR Input to Unbalanced RCA Output - AS089
Jenson Transformer Application Note
Balun Transformers - Application Note MiniCircuits.com
Basic Hum Stopper Transformer Isolation Box - AS036
Jenson Transformer Application Note. Simple isolator
for 600 ohm balanced audio lines
Bi-directional Lo-Z Long Line Application - AS077 Jenson
Transformer Application Note
Build the Hummer to Find Pin 1 Problems in Equipment -
AS032 Jenson Transformer Application Note
Cascode Tube Microphone Input Stage - AS054 Jenson
Transformer Application Note
Connect Line-Level Signal to Phono Input - The circuit
does two functions: signal level attenuation and inverse
RIAA filtering. The signal attenuation is needed to convert
the 500 mV signal to 2.5 mV signal. The inverse-RIAA
filtering is needed to make the frequency response of the
system flat (same equalization that is used when music is
transferred to vinyl in the studio). The picture blow shows
the frequency response of the ideal inverse-RIAA filter
Conversion of Unbalanced Input to Balanced - AS002
Jenson Transformer Application Note
Converts 600 Ohm Unbalanced Mic to 150 Ohm Balanced Mic Line
- AS049 Jenson Transformer Application Note
Converts Consumer Stereo Inputs to Mono Balanced Mic Output
- AS078 Jenson Transformer Application Note
Converts High Impedance Input to X10 Balanced Audio Input
- AS090 Jenson Transformer Application Note
Converts Unbalanced Output to Balanced - AS052 Jenson
Transformer Application Note
Differential Line Driver with Feedback Around the
Transformer - AS051 Jenson Transformer Application Note
Direct Box for Very High Level Signals - AS008 Jenson
Transformer Application Note
Dual JT-MB-C Microphone Combining Circuit - AS053 Jenson
Transformer Application Note
Everything You Wanted to Know About Wideband Low Frequency
Transformers - EDN-Design Ideas
External Isolation Transformer Box for Mackie - AS073
Jenson Transformer Application Note
Famous Twin-Servo 990 Mic Preamp Basic Circuit - AS083
Jenson Transformer Application Note
Floating Supply for LCD Panel Meter - includes several
designs, scroll down to find this one
Flyback circuit provides isolated power Conversion -
EDN-Design Ideas: A common requirement in telecommunications
systems is to convert an unregulated 48V line to an
isolated, accurate dc supply voltage. The circuit in Figure
1 provides a 5V, 15W output. The circuit uses a UCC3809
primary-side controller, which can also control other
single-ended converters. The topology uses peak-current-mode
control with a fixed-frequency oscillator. The design is
cost-efficient
Full-featured Direct Box Application Schematic - AS066
Jenson Transformer Application Note
Generic Tube Line Input Stage - AS087 Jenson Transformer
Application Note
Grounding & Shielding
Audio Device - Splitting Signals, Sub-woofing in Mono,
Unbalanced Summing, Balanced Summing, Output Impedances.
Guitar to Amp Long Line Circuit - AS097 Jenson
Transformer Application Note
Ham Radio Line Level to Mic Level Circuit - AS096 Jenson
Transformer Application Note
High CMRR Balanced Interface for Crystal 18 or 20 Bit A/D
Converters - AS062 Jenson Transformer Application Note
High Level High Current Differential Output Stage with DC
Servo - AS031 Jenson Transformer Application Note
High Level Low Impedance Differential Output Stage with DC
Servo - AS034 Jenson Transformer Application Note
High Output Line Driver for Single Ended Power Supply -
AS079 Jenson Transformer Application Note
High Performance Audio Op-Amp Quick Reference - AS050
Jenson Transformer Application Note
How RF transformers work & how they are measured -
Application Note MiniCircuits.com
IC Mic Preamp uses Jensen Twin-Servo Circuit Topology -
AS082 Jenson Transformer Application Note
Improves CMRR of Electronically Balanced Line Inputs -
AS069 Jenson Transformer Application Note
Improves Performance of SSM2015 Mic Preamp IC - AS063
Jenson Transformer Application Note
Improves Performance of SSM2017 Mic Preamp IC - AS064
Jenson Transformer Application Note
Input Stage for Crystal A to D Converters - AS043 Jenson
Transformer Application Note
Input Transformer for Crystal CS5367 A/D Converter -
AS086 Jenson Transformer Application Note. Transformer
balanced passive input circuit for CS5367 A/D converter
Interconnection of Balanced & Unbalanced Equipment - 4
page booklet in PDF format
Internal Modification to Mic Inputs of the Mackie 1604 Mixer
Eliminates RFI Problems - AS074 Jenson Transformer
Application Note
Introduction, definition of terms, Q&As-tran14-2 -
Application Note MiniCircuits.com
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.
Isolated Line Output from Guitar Amplifier - AS045
Jenson Transformer Application Note
Isolates & Converts Guitar Amp Speaker Out to Line Output
- AS061 Jenson Transformer Application Note
Isolates & Converts Speaker Drive to Line Level - AS068
Jenson Transformer Application Note
Isolates 70 Volt Line & Converts to Line Level - AS059
Jenson Transformer Application Note
Isolates both Mic & Line Inputs of Inexpensive Mixer -
AS015 Jenson Transformer Application Note
Isolates Phantom Powered Guitar or Instrument Buffer -
AS004 Jenson Transformer Application Note
Isolation Transformer Passes Millihertz Signals - EDN-Design
Ideas: You can successfully use an ordinary low-cost line
transformer as an isolation transformer in ac circuits that
require floating sources. However, at frequencies below 20
to 30 Hz, high distortion and excessive phase shifting
occur.
Isolator Transformer for Audio Lines - If you want to do
the ground loop elimination in audio path, you have to cut
the galvanic connection but pass the whole audio range. The
simplest and most common way to do the isolation is use
audio transformer which is ment for audio use. |
