How to Improve Voltage Regulation Accuracy

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Expert Benchtop DC Power Supplies
+ Expert Benchtop DC Power Supplies
Expert Benchtop DC Power Supplies
+ Expert Benchtop DC Power Supplies

Ensure Accurate Voltage at the Load

Voltage drops across test leads can introduce significant discrepancies between the programmed output of a power supply and the actual voltage delivered to the device under test (DUT). These errors become more pronounced as load current increases or when longer cables and higher resistance connections are used, leading to reduced measurement accuracy, poor repeatability, and potential misinterpretation of device performance.

Remote (4-wire) sensing addresses this challenge by measuring voltage directly at the DUT terminals and compensating for voltage losses in the force leads in real time. By maintaining a stable and accurate voltage at the point of load, this approach ensures precise test conditions even under dynamic load changes or extended cable lengths, improving measurement confidence and overall system reliability.

Load Voltage Regulation Solution

Ensuring accurate voltage delivery to the device under test requires measurement systems capable of compensating for losses introduced by test leads and dynamic load conditions. Keysight Expert benchtop DC power supplies with remote (4-wire) sensing establishes a feedback mechanism between the power supply and the load, enabling real-time voltage measurement directly at the DUT terminals. This integrated approach allows the power supply to automatically adjust its output to compensate for lead resistance and voltage drops. Together, these capabilities ensure precise voltage regulation at the point of load, improving measurement accuracy, repeatability, and overall test reliability under varying operating conditions.
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