Transcript It is MUCH more useful than an any other piece of test equipment, by

Why you need more than one
signal injector
The VNA is an ESSENTIAL tool for
Power Measurement
It is MUCH more useful than an any other
piece of test equipment, by far.
However, the majority of measurements
require an “interface” between the DUT
and the test equipment
Signal Injectors provide this connection,
simply, with high fidelity and via an
interface that is non-invasive to the
measurement
J2100A and J2101A Transformers –
Traditional Stability/Bode
Both transformers are CE certified for
600V CAT II operation assuring personal
safety as well as being approved for
shipment anywhere in the world.
1 sim_phase
40.0
0
-40.0
3 bench_gain
4 bench_phase
360
bench_phase, sim_phase in degrees
The J2101A offers a usable frequency
range of 10Hz-40MHz supporting LDOs
and POL regulators
80.0
Plot1
bench_gain, sim_gain in dB
The J2100A offers usable frequency range
of 1Hz-10MHz supporting AC/DC power
supplies and PFCs
2 sim_gain
180
0
-180
3
2
-80.0
-360
10
100
1k
10k
frequency in hertz
100k
1
4
1Meg
J2110A Solid State Voltage Injector –
Stability/IMD Testing
The J2110A “Bode Box” offers high
speed, minimally invasive voltage
modulation in both the time domain and
frequency domain with a frequency
range of DC-100+ MHz. The solid state
injector offers the highest performance
available anywhere. It also allows
measurements with the highest fidelity
and the minimum noise
Many of our customers use the J2110A
for low frequency control loops, such as
thermal, motor and PFC loops
A special, highly linear front-end also
supports non-mixing summing
applications, such as IMD testing
J2111A and J2112A Current Injectors –
Noninvasive Stability/Step Load/Impedance
The J2111A and J2112A offer high
speed, non-invasive current
modulation in both the time
domain and frequency domain.
With minimal capacitance and up
to 10nSec switching speed, these
devices do what Electronic loads
cannot
J2111A and J2112A Current Injectors
We can extract the stability from PSRR
or output impedance and in some cases
we can even extract the bode plot!
Measured and extracted Bode plots
The J2111A and J2112A, along with the
OMICRON Lab Bode 100, support cursor
based non-invasive stability (Phase Margin)
measurement!
J2120A Line Injector - PSRR
The J2120A provides input
voltage modulation for PSRR
testing and also for filter testing.
Supporting applications up to
50V at operating currents up to
5A, this regulator makes PSRR
testing simple
Ultra-High PSRR regulator and
measurement noise floor
AD820 Op Amp PSRR 5V and 15V
TR1/dB
80
60
40
20
0
102
103
104
105
106
f/Hz
TR1: Mag(Gain)
TR1(Memory): Mag(Gain)
107
J2130A Bias Injector –
Component Measurement
LT1009 Reference Output Z
TR1/Ohm
10 2
10 1
10 0
10 -1
102
103
104
105
106
107
f/Hz
TR1: Mag(Impedance)
TR1(Memory): Mag(Impedance)
The J2130A is a Resistor Capacitor Bias Tee
which is useful for measuring components,
such as capacitors, diodes, small signal
BJTs, opto-couplers and more. We have a
wide selection of application notes
available for this versatile injector
Measured CTR of
MICROPAC 66068 Opto
J2140A Cascadable Attenuator
In some cases, especially when measuring low power circuits such as opamps and
voltage references, it is necessary to reduce the VNA oscillator signal below -80dBm.
This is far below the capability of most analyzers. The J2140A provides 10dB-70dB
attenuation with 50 Ohm input and output impedances
In many low level applications it is necessary to maintain very small signals. The J2140A
attenuator is also useful for calibrating noise measurements. Cascading two J2140As
allows you to calibrate noise signals as small as 100nVpp using a Spectrum Analyzer
such as the RSA5106A
J2180A Wideband Low Noise Preamp
The 0.1Hz-100MHz wide bandwidth ultra low noise
20dB preamp includes an active DC bias loop
The device supports high fidelity testing, such as EMI
and noise, and it works with all oscilloscopes,
spectrum analyzers and network analyzers
It also interfaces Hi-Z probes to 50 Ohm equipment
J2102A Common Mode Transformer
• Greatly attenuates the effects of low frequency
ground loops
• Supports the 2 Port Shunt Thru impedance
measurement required for Power Distribution
Networks (PDNs)
• Maintains 50 Ohm transmission line integrity to
approximately 500MHz
• Works with all types of test equipment to eliminate
ground loops, such as Network and Spectrum
Analyzers and Oscilloscopes
J2190A 4th order High Pass/Low Pass Filter
The J2190A is a 4th order high pass
4th order low pass filter, designed
For the popular 0.1Hz – 10Hz band.
Other frequency bands are possible
on a custom basis
J2170A Worldwide Adapter
The J2170A operates from an input voltage of
100-240VAC allowing it to be used anywhere.
CE certification assures safety as well as
allowing it to be sold anywhere in the world.
Two ultra high PSRR, low noise, custom linear
regulators provide clean power to the powered
injectors, which include the J2110A, J2111A,
J2112A, J2180A and J2190A
J2170A Ultra High
PSRR regulator
performance
VRTS Kit
A step-by-step manual
guides you through each
high fidelity measurement
See your results together
with ours for instant
feedback
Spare circuit boards allow
you to mount your own
devices
Technical Support
•Troubleshooting EMI with the MDO
•Optimize Wireless Power Transfer Link Efficiency
•An Improved Spice Capacitor Model
•Component Aging Is Primary Hurdle In Design Of High-Temperature
•Measuring the Output Impedance of Voltage References and Zeners Power Converters
•Powering RF Systems: Why So Many Power Supply Designs Have
•Measuring the PSRR of Voltage References
Problems and What IC Suppliers Should Do About It
•Simple Method to Determine ESR Requirements for Stable Regulators
•Gate Drive May be the Culprit When Q is Low
•Power Supply Rejection Ratio Measurement
•Deconstructing the Step Load Response Reveals a Wealth of
•Power Supply Crosstalk Measurement
Information
Seven
Trends
May
Change
Power
Design
Dramatically
•These
•Why Network Analyzer Signal Levels Affect Measurement Results
•An Accurate Method For Measuring Capacitor ESL
•Extracting SPICE parameters from a diode using two M3500A
•Measuring Optocouplers with the J2130 DC Bias Injector and the
•Measuring LDOs requires more bandwidth than you think
OMICRON Lab Bode 100 VNA
•Failure Mechanisms of Power Systems in a Particle Accelerator
•New Technique for Non-Invasive Testing of Regulator Stability
Environment and Strategies for Prevention
Test
Signal
Injectors
•Selecting
•No Load Specification Impacts Power Supply Performance
•Reverse Transfer Measurement
•Quantifying Harmonic Distortion in Non-Isolated Average Current
•Measuring MOSFET Gate Resistance
•Measuring Low Values of ESL
Mode Boost PFC’s
•Definitive Handbook of Transistor Modeling
AND MANY MORE…
•Optimizing Single Stage PFC
https://www.picotest.com/blog/
http://www.omicron-lab.com/application-notes.html
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Power