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Yokogawa launches two new Source Measure Units

Yokogawa GS820 and GS61009 December 2013 - Yokogawa added two new instruments to the GS610 and GS820 family of source measure units: the GS610 Model 7655 is a battery simulator unit which simulates the internal resistance changes of batteries as an aid to failure analysis, while the GS820 Models 765601/Z and 765602/Z are 50 V output versions for testing higher-voltage components such as LEDs and power transistors.

Yokogawa’s single-channel GS610 and multi-channel GS820 source measure units are high-accuracy, high-speed programmable voltage and current sources that incorporates both generation and measurement functions as well as USB interfaces and USB storage functions.

The instruments feature high power output, with a maximum output voltage and current of 110 V and 3.2 A, respectively, a basic accuracy of 0.02%, and pulse widths down to 100 µs. These performance levels, coupled with the fact that the units can operate as current sources or current sinks, make them ideally suited to measuring and evaluating the electrical characteristics of a wide range of devices, including semiconductors, secondary batteries, in-vehicle electronic components and displays.

The new 7655 version of the GS610 can firstly measure the current/voltage characteristics of a battery during charging or discharging and then simulate the internal resistance changes of the battery by controlling the output voltage in real time with reference to this characteristic. This makes it possible to simulate low and defective batteries and carry out marginal battery power testing on portable devices such as mobile phones and digital cameras.

The GS610 Model 7655 battery simulator is designed to save time and money by avoiding the need to prepare batteries with low charges and/or defects. Tests can be performed which are easily reproducible over long periods.

The 765601/Z and 765602/Z versions of the GS820 each provide a maximum output voltage of 50 V, compared with 18 V for the standard version. The maximum current capability of the new models is ±1.2A, compared with ±3.2A for the standard unit.

Applications for the higher-voltage unit include testing LED lighting, power transistors and FET devices, protection devices (varistors and diodes) and voltage regulators. Potential users include both equipment manufacturers and component or sub-assembly manufacturers.

www.tmi.yokogawa.com/



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