Power analysis software overview – Teledyne LeCroy Power Analyzer Package User Manual
Page 4
Power Analysis Software
Power Analysis Software Overview
The Power Analyzer Software (PAS) option helps measure and analyze the operating characteristics of
power-conversion devices and circuits for off-line, DC-DC and DC-AC power circuit designs. It provides
automatic detection and measurement of turn-on and turn-off switching device losses, as well as con-
duction losses. Areas of power loss are clearly delineated by a color-coded waveform overlay, and tools
are provided to reduce measurement errors. A streamlined user interface guides you through the vari-
ous stages of analysis.
PAS consists of these major analysis areas:
l
covers the measurement of switching device performance such as device instant-
aneous power, switching losses, safe operating area (SOA), saturation voltage, dynamic on-res-
istance, dv/dt or di/dt, and saturation hysteresis curves of magnetic devices. With PAS, these
device measurements can be made either on a test stand or in circuit while the devices are oper-
ating in a power conversion system.
l
covers the acquisition and analysis of information contained in a power con-
version circuit’s modulated control signal. It analyzes modulation changes in pulse width (PWM),
duty cycle, frequency, or period as the feedback loop responds to changes in line and/or load, as
well as during start-up and shut-down.
l
covers the measurement of line voltage and current applied to an off-line
power conversion device. Real power, apparent power, power factor, crest factor, and line har-
monics are measured. Analysis of line harmonic content is included to assist the design and eval-
uation engineer in designing for pre-compliance to EN 61000-3-2 requirements.
l
Performance Analysis computes the efficiency of the power supply and adds the measurements to
determine the amount of ripple a power source generates.
All Teledyne LeCroy
are integrated with the software, and measurements are
automatic and precise. Documentation and Flashback to prior power-circuit analyses can be accom-
plished through LabNotebook.
2
921326 Rev B