Keysight Technologies B2900A Series Demo Manual

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Keysight TechnologiesMaking Current-Voltage Measurement Using B2901A/02A/11A/12A - Demo GuideB2900A Series Precision Source/Measure UnitMeasurement concept– Source voltage to turn the LED on.– Limit value feature prevent the instrument fromsourcing too much even if Source value is increased.– Step voltages from start voltage to stop voltage withmaking current measurement at each voltage step.– Voltage steps are sourced from an internal voltagesource.– Current measurements are made by an internalcurrent meter.– The complicated measurement as above can beconfigured and made easily with Intuitive GraphicalUser Interface (GUI).– Current-voltage curve can be seen easily by changingView mode.Setup1. Connect the yellow banana plug to Ch 1 Low Force terminal.2. Connect the red banana plug to Ch 1 High Force terminal.3. Clip the LED cathode terminal with the black gold-platedtweezers.4. Clip the LED anode terminal with the red gold-plated tweezers.b. Press and set Channel 1 Limit value to 100 mA.c. Press Ch1 to turn on Channel 1 Output relay.d. Press and rotate until Source value achieves 3 V.You will see the measurement parameters turn orange, whichmeans they reach Limit value.e. Rotate until Source value achieves 2 V and then pressto set Source value to 2 V.1. Turn on the LED and measure LED current1-1. Change View mode to Single Viewa. Press repeatedly until Single Viewfor Channel 1 is shown in the display.1-2. Source voltage to turn on the LEDa. Press to edit Channel 1 Source value, and then enter2 V to set Source value to 2 V.Procedure overview1. Turn on the Light Emitting Diode (LED) and measure LEDcurrent2. Make current-voltage (I-V) sweep measurement to get LEDI-V characteristicsObjectiveThis demo shows how easily current-voltage character-istics can be obtained with the B2900A Series throughthe LED characteristics measurement.Required Instrument and AccessoryYou will see LED is turned onbecause voltage is sourced bythe channelKeysight B2901A/02A/11A/12APrecision Source/Measure UnitLED lampKeysight 11059AKelvin Probe SetCurrent [A]Voltage [V]LED Current-Voltage CharacteristicsVSourceI Meas-B2900 Series0.200.150.100.050.000.50.0 1.0 1.5 2.0 2.5 3.0High forceCh 1Low forceLEDA2143Red(11059A)Yellow(11059A)Black(11059A)Red(11059A)CathodeAnode

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