Source Measure Unit
- Source and sink operation up to 110 V/3.2 A (four-quadrant operation)
- Basic accuracy: ±0.02% (DC voltage generation)
- Sweep output at up to 100μs intervals
- Comes with abundant sweep patterns (linear, logarithmic, and arbitrary)
- Stores up to 65535 points of source measure data in the internal memory
- Easy file operation with the USB storage function
- Remote control and FTP using Web server function (Optional)
The GS610 is a highly accurate and highly functional programmable voltage/current source that incorporates voltage/current generation and measurement functions. The maximum output voltage and current are 110 V and 3.2 A, respectively. Evaluation of over a wide range of basic electrical characteristics is possible, because the GS610 can operate as a current source or a current sink.
Measurement of the Static Characteristics of Semiconductor Device(Diode, Tr, FET, etc.) Two GS610s are operated in sync to measure the static characteristics of a transistor. Then, constant h is determined from the slope of each characteristics data. In the IB-IC characteristics measurement, a GS610 for base current IB output and a GS610 for collector current IC measurement are operated in sync to measure the characteristics. The VCE-IC characteristics measurement is possible using one GS610 by connecting the GS610 between the emitter and the collector, applying VCE, and measuring the collector current IC.
Charge/Discharge Characteristics Measurement of Secondary Batteries (Lithium-Ion or Nickel-Hydride) The GS610 can be used to simulate the charge/discharge operation of secondary batteries such as lithium-ion and nickel-hydride batteries. In boost charge operation, constant current charge is carried out using large current in the range of approximately 2C to 5C (2 to 5 times the battery capacity). When the battery voltage reaches a given value, a switch is made to constant voltage operation. In constant voltage charge operation, the charge current gradually decreases. When it decreases to a given value, the charge operation is stopped. The GS610 has an auto V/I function that automatically switches from battery voltage measurement to charge current measurement in sync with the switching of the operation mode from constant current charge to constant voltage charge. In the discharge simulation, constant current pulse discharge is possible through the GS610 pulse current sink operation. This enables simulation that takes into account the intermittent operation of mobile devices.
Voltage Fluctuation Simulation of Electronic Devices and Sensors for Vehicles: The power supply of automobiles (12 V or 24 V) fluctuates greatly with voltage degradation, superimposed spike noise, etc. It is a harsh environment for in-vehicle electronic devices. For example, the voltage degrades when the air conditioner starts or spike noise is superimposed when the wiper motor starts. The supply voltage fluctuates constantly affecting the operation of in-vehicle devices. In the past, supply voltage fluctuation test of in-vehicle devices needed to be carried out with the device installed in the automobile. The USB storage function of the GS610 enables waveform data of degraded voltage and spike noise to be easily acquired and output. Therefore, the supply voltage fluctuation similar to the fluctuation in the actual automobile can be reproduced in the laboratory for testing, eliminating the need to install the device under test in the automobile. In addition, by capturing the supply voltage fluctuation waveform with a digital oscilloscope and storing the waveform data in the GS610 internal memory, the actual supply voltage fluctuation waveform can be easily reproduced.
Source measure cycle (source & measure at 1 ms minimum): The GS610 is capable of synchronizing the generation and measurement at any operation mode. Generation is started after a source delay with respect to an internal/external trigger. Then, after the time it takes for the source level to stabilize (measure delay) the measurement is carried out over a given integration time. This function is necessary when making measurements by waiting for the load response after applying a pulse. The source measure cycle is the minimum unit for signal generation and measurement. The source/measurement operation (source measurement cycle) on the GS610 is 1 ms minimum.
Difference measurement using the sweep operation: The sweep operation can be used to make two measurements, then the difference between the two measurements can be determined. When the source value of sweep data 1 is established, the first measurement is carried out. Then, when the source value of sweep data 2 is established, the second measurement is carried out. The difference is determined by subtracting the value of the second measurement from that of the first measurement. By carrying out the two measurements within a short time, highly accurate measurements are possible with the effects of offset fluctuation cancelled. In addition, by applying a voltage with equal magnitude but opposite in polarity (source 1 = -1× source 2), the effects of offset error caused by the thermo electromotive force at the junction can be cancelled.
Zero Generation Function of Voltage and Current: The zero generation function of the GS610 enables the generation of the voltage/current zero value as well as the switching of the output condition between high and low impedance. In the zero generation condition, the voltage application or current supply to the load can be stopped with the output relay turned ON. This function avoids the problems of chattering and contact life of the output relay and reduces the ON/OFF operation time of the output.Zero generation of voltage – Low impedance: The current limiter is set to the specified value. – High impedance: The current limiter is set to 0.5% of the range.Zero generation of current – Low impedance: The voltage limiter is set to 0.5% of the range. – High impedance: The voltage limiter is set to the specified value.
External Input/Output and Synchronized Operation: The GS610 has various external input/output connectors. Signals such as the trigger input/output indicating the timing of generation and measurement, the output relay ON/OFF control signal, the zero generation ON/OFF control signal, and the comparator judgment result output can be input/output from the BNC and multi-core connectors. In addition, multiple GS610s can be synchronized by simply connecting the trigger output of a GS610 to the trigger input of another GS610 using a BNC cable.
Easy File Operation with the USB Storage Function: When the GS610 Source Measure Unit is connected to a PC via the USB, the PC detects the GS610 internal memory as a USB storage device. A pattern file can easily be stored in the GS610 internal memory by creating the GS610 generation pattern on a general-purpose worksheet application and dragging and dropping the pattern file. The GS610 sweeps the voltage or current levels according to the generation pattern that is written in this file, measures the load current or load voltage at the appropriate points, and stores the results to the GS610 internal memory. There is absolutely no cumbersome programming or installation of dedicated software programs required.
User-Defined Computation Function: User-defined computation can be performed on the GS610 by combining dedicated operators. It can be used to carry out linear conversion of measured values, compute the power, compute the next generated value from the current measured value, and perform real-time computation of generated data using expressions. The expression is created using a text editor on your PC and stored to the GS610 internal memory via the USB.