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Powering Results with Precision and Simplicity
Addressing Today's Power Sourcing Applications from
Basic Needs to the Most Challenging Requirements
A G R E AT E R M E A S U R E O F C O N F I D E N C E
P O W E R I N G R E S U LT S W I T H P R E C I S I O N A N D S I M P L I C I T Y : A D D R E S S I N G T O D AY ' S P O W E R S O U R C I N G A P P L I C AT I O N S F R O M B A S I C N E E D S T O T H E M O S T C H A L L E N G I N G R E Q U I R E M E N T S
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Powering Results with Precision and Simplicity
Addressing Today's Power Sourcing Applications from Basic Needs to the Most Challenging Requirements
Introduction Table of Contents
Whether being used to train the next generation of electrical engineers or for developing a breakthrough Low Power, Portable Devices; Power Supplies
in ultra-low power, wearable products, power supplies must meet a wide range of power sourcing with Advanced Measurement Capability .........................................................................3
requirements. For applications ranging from basic power sourcing to those that push the limits of Verifying the Power Consumption in the Device; Monitoring Circuit Stability; Determining Peak Load Current when Drawn
in Short Bursts; Automating Load Current Monitoring for Environmental or Production Testing
performance with high sensitivity sources or sources that can deliver thousands of volts, using the
Compact Supplies for Automated Test ............................................................................ 7
appropriate power supply is critical to successful teaching or obtaining successful test results. This
Achieving More Power with Less Space; Controlling an External Device; Simulating a Wide Range of DC Output
e-guide offers guidance for selecting the appropriate general purpose power supply or specialized Conditions; Protecting Devices with Large In-rush Currents from Overshoot Damage
source for a wide range of testing needs, including even the most challenging requirements.
Research and Design........................................................................................................12
Optimizing Instrument Flexibility with a Limited Instrument Budget; Automating Tests for Efficient Data Collection
Education ...........................................................................................................................14
Providing an Effective Learning Environment within a Tight Budget
Testing Portable Wireless Devices ..................................................................................15
High Volume Production Testing of Portable, Wireless Devices
When More Sensitivity is Needed than a Power Supply can Offer ..............................16
Performing I-V Characterization or Studying Leakage Current on a Component
High Voltage Breakdown Testing.....................................................................................17
Meeting High Voltage Operating Specifications
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P O W E R I N G R E S U LT S W I T H P R E C I S I O N A N D S I M P L I C I T Y : A D D R E S S I N G T O D AY ' S P O W E R S O U R C I N G A P P L I C AT I O N S F R O M B A S I C N E E D S T O T H E M O S T C H A L L E N G I N G R E Q U I R E M E N T S
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Low Power, Portable Devices; Power Supplies with Advanced Measurement Capability
Verifying Device Power Consumption Requires Low Current Measurement
To properly design and test low power, portable devices such as consumer products (cellular phones, tablets,
laptops), industrial products (wireless transmitters, intrinsically safe instruments), or implantable medical devices
(pacemakers, defibrillators, neurological stimulators), it's essential to verify that the goals for maximum battery
life, maximum time between re-charges, or minimum current consumption can be met. But, these tests, which
include measuring the sleep mode and standby mode currents drawn by these devices, require precise low
current measurements that are often in the range of micro-amps to hundreds of micro-amps. In addition to
good measurement techniques, sensitive instrumentation with special capabilities for measuring very small load
currents is typically necessary, adding cost and complexity to the test circuit. It would be very convenient if the
power supply used to power the device during testing could measure very low load currents, but conventional
programmable power supplies have a current measuring resolution of only 0.1mA at best and, therefore, cannot
be used to measure the ultra-low standby and sleep mode currents in today's and the next generation's low
power products.
Now there is a power supply that can make very low load current measurements and provide a cost-effective
solution. The Series 2280S Precision Measurement, Low Noise, Programmable DC Power Supplies provide the
necessary sensitivity to measure low sleep mode and standby mode currents. With 6