Related Manuals for Tektronix Keithley 2302
Summary of Contents for Tektronix Keithley 2302
- Page 1 tek.com/keithley Model 2302/2302-PJ/2306/2306-PJ/ 2306-VS Battery/Charger Simulator Quick Results Guide 2306-903-01 Rev. D / May 2019 *P2306-903-01D* 2306-903-01D...
- Page 2 Model 2302/2302-PJ/2306/2306-PJ/2306-VS Battery/Charger Simulator Quick Results Guide ©2019, Keithley Instruments, LLC All rights reserved. Cleveland, Ohio, U.S.A. May 2019 Document Number: 2306-903-01 Rev. D...
- Page 4 Safety precautions The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous conditions may be present. This product is intended for use by personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury.
- Page 5 Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock.
- Page 6 symbol on an instrument means warning, risk of electric shock. Use standard safety precautions to avoid personal contact with these voltages. symbol on an instrument shows that the surface may be hot. Avoid personal contact to prevent burns. symbol indicates a connection terminal to the equipment frame. If this symbol is on a product, it indicates that mercury is present in the display lamp.
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Page 8: Table Of Contents
Table of Contents Introduction ........................Performance features ......................Proper connection of the supply to the DUT ..............Front panel operation......................Menu controls ......................Setting the output voltage, current range, and current limit ........Turning supply output ON/OFF................. Actual V and I mode ....................DVM input mode ....................... -
Page 10: Model 2306 Front Panel
Model 2306 Quick Results Guide NOTE This quick results guide provides information on four different models of battery or battery/charger simulators (Models 2302, 2302-PJ, 2306, and 2306-PJ). In this guide, references to Model 2306 apply to all of the simulators unless otherwise noted. -
Page 11: Introduction
Introduction Introduction This guide is designed to familiarize users of the Keithley Model 2306 Dual Channel Battery/ Charger Simulator and Model 2302 Single Channel Battery Simulator with the basic operating features available from the instrument’s front panel and also the GPIB bus. The sequence of operating instructions reflects the order in which the instrument would be configured for a typ- ical application. -
Page 12: Rear Panel View Of Model 2306
Proper connection of the supply to the DUT On some sensitive or easily damaged devices under test (DUTs), the NOTE instrument power-down sequence can apply transient signals to the DUT that may affect or damage it. When testing this type of DUT, disconnect it from the instrument before turning the instrument off. -
Page 13: Front Panel Operation
Front panel operation Failure to connect the sense leads in this fashion will severely compromise the performance of Model 2306 with dynamic loads. Figure 4 illustrates the proper connection of the supply to the DUT using a 2-wire local sense configuration. Figure 4 2-wire local sense connection of the DUT to the output Quick Disconnect... -
Page 14: Setting The Output Voltage, Current Range, And Current Limit
Front panel operation Setting the output voltage, current range, and current limit Output voltage can be set from 0 to 15V. For the Model 2306 and 2302, there are two ranges for current, 5A and 5mA. For the Model 2306-PJ and 2302-PJ, there are also two ranges for cur- rent, 5A and 500mA. - Page 15 Front panel operation NPLC rate The integration (reading) rate of the instrument is specified as a parameter based on the num- ber of power-line cycles (NPLC), where 1 PLC for 60Hz line frequency is 16.67msec. In gen- eral, the fastest integration time (0.01 PLC) results in increased reading noise. The slowest integration time (10 PLC) provides the best common-mode and normal-mode rejection.
- Page 16 Front panel operation Programming examples: outputting and reading back V and I The following command sequences demonstrate how to output voltage and current, and read back (measure) the actual voltage and current: Battery channel (#1) Command Description VOLT 5 ‘ Set output voltage to 5V. SENS:CURR:RANG:AUTO ON ‘...
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Page 17: Dvm Input Mode
Front panel operation Charger channel (#2) Command Description SOUR2:VOLT 5 ‘ Set output voltage to 5V. SENS2:CURR:RANG:AUTO ON ‘ Enable auto range for current. SOUR2:CURR 750e-3 ‘ Set current limit to 750mA. SOUR2:CURR:TYPE LIM ‘ Select LIM mode for current limit. SENS2:FUNC ‘VOLT’... -
Page 18: Pulse Current Mode
Front panel operation Programming examples: making voltage measurements with the DVM The following command sequence demonstrates how to measure voltage applied to the DVM input of the power supply: Battery channel (#1) Command Description SENS:FUNC ‘DVM’ ‘ Select the DVM input function. SENS:NPLC 6 ‘... -
Page 19: Pulsed Waveform
Front panel operation The pulse measurement period T can be selected manually or be automatically set by the Model 2306. First, the user must specify a trigger level that serves as a threshold to initiate inte- gration process, i.e., at t = 0. Once the trigger level is selected, the output is turned on and the pulsed load is operational, the 2306 can be prompted to automatically determine the high time, low time, and average time in pulsed current mode according to Figure 5. -
Page 20: Eliminating The Effect Of A Current Transient On A Pulse Current Measurement
Front panel operation current The pulsed response of a device is rarely a perfect square wave. Figure 6 shows the response of a typical GSM handset during the transmit portion of the data frame. Using the built in auto-time feature with a trigger threshold of 0.2 amp and no trigger delay, the Model µ... - Page 21 Front panel operation Front panel operation for performing pulse current measurements All of the following settings are available in sub-menus of PULSE CURRENT #1/#2 main menu item. Scroll through the main menu and when PULSE CURRENT #1/#2 is displayed, press “ENTER” to access the sub-menus. Turn on the output Press the OPERATE key after setting the appropriate voltage and current limits for the DUT.
- Page 22 Front panel operation Integration time (auto time setting) “AUTO TIME” sub-menu Press ENTER when “ACQUIRE TIMES” appears on the display. If the correct trigger level is selected in the previous step and the DUT is operating, the Model 2306 will automatically determine the HIGH, LOW, and AVERAGE times.
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Page 23: Circuit - Determining The Dynamic Voltage And Current Characteristics Of A Dut
Front panel operation NOTE No Pulses Detected message If no pulses are detected, current will not be measured (i.e., -----A), and the “NO PULSE” message will be displayed. The “NO PULSE” message is displayed with dashes or the last valid pulse reading. Dashes are shown if the pulse-current mea- surement settings are not appropriate for detecting pulses. - Page 24 Front panel operation Programming examples: pulse current measurements The following command sequence will return the average of 10 peak pulse current measurements: Battery channel (#1) Command Description SENS:RANG 5 ‘ Select 5A range. VOLT 15 ‘ Set output voltage to 15V. CURR 0.75 ‘...
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Page 25: Long Integration Mode
Front panel operation Charger channel (#2) Command Description SENS2:RANG 5 ‘ Select 5A range. SOUR2:VOLT 15 ‘ Set output voltage to 15V. SOUR2:CURR 0.75 ‘ Set current limit to 750mA. OUTP2 ON ‘ Turn output on. SENS2:PCUR:SYNC ON ‘ Enable trigger synchronization. SENS2:PCUR:AVER 10 ‘... -
Page 26: Pulsed Waveform
Front panel operation Figure 8 Pulsed waveform Trigger level Average current Integration time (trigger set to rising) Integration time (trigger set to falling) NOTE The pulse waveform contained in Figure 8 shows trigger level and the integration time used by the Model 2306 for pulse current measurements. Front panel operation for performing long integration measurements All of the following settings are available in sub-menus of the LONG INTEGRAT #1/#2 main menu item. - Page 27 Front panel operation To change the range for the trigger level setting, place the blinking cursor on the “A” at the far right end of line two of the display, and press the UP or DOWN key. After keying in the trig- ger level (in amps), press ENTER to update the displayed range for that trigger level setting only.
- Page 28 Front panel operation 3. Press the UP or DOWN key until “LONG INTEGRATION” is displayed and press ENTER. 4. To stop taking long integration readings, press any front panel key. As long as the instrument remains in the long integration display state, the measurement process can be resumed by pressing the UP or DOWN key.
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Page 29: Advanced Features
Advanced features Charger channel (#2) Command Description SENS2:RANG 5 ‘ Select 5A range. SOUR2:VOLT 15 ‘ Set output voltage to 15V. SOUR2:CURR 0.75 ‘ Set current limit to 750mA. OUTP2 ON ‘ Turn output on. SENS2:LINT:TEDG RISING ‘ Select rising trigger edge to initiate mea- surement. -
Page 30: Battery Schematic
Advanced features Figure 9 shows a simple schematic of a battery. This battery is represented by an ideal voltage source, V , with internal impedance, R (t), and is connected to a DUT with interconnects hav- cell ing resistance R interconnect Figure 9 Battery schematic... -
Page 31: Actual Battery Pack Terminal Voltage During Gsm Phone Simulation
Advanced features Figure 10 Actual battery pack terminal voltage during GSM phone simulation Li ion Average Battery Voltage NiMH Average Battery Voltage NiCd Average Battery Voltage Li ion Battery Pulse Minimum Voltage NiMH Battery Pulse Minimum Voltage NiCd Battery Pulse Minimum Voltage 9.00 8.50 8.00... -
Page 32: Simulated Gsm Phone Current Profile
Advanced features Figure 11 Simulated GSM phone current profile Voltage Pulse Minimum Voltage -0.030 amps Current -1.200 amps NOTE The simulated GSM phone current profile contained in Figure 11 shows a standby current of 0.030A, a transmit current of 1.2A, and the pulse minimum voltage during the transmit frame. -
Page 33: Electronic Resistance Of Nicd, Nimh, And Li Ion Battery Packs
Advanced features Figure 12 Electronic resistance of NiCd, NiMH, and Li ion battery packs 0.40 Li ion 0.35 0.30 NiMH 0.25 0.20 NiCd 0.15 0.10 10.0 Time, hrs NOTE Figure 12 shows electronic resistance for battery packs during a simulated GSM phone pulsed discharge from full charge to 5.5 volts. -
Page 34: Effect Of Variable Output Impedance Control
Advanced features Figure 13 Effect of variable output impedance control ~1.4 amps 70mV 140mV NOTE Figure 13 contains the effect of the variable output impedance control of the Model 2306 on the current and voltage performance of a GSM handset. -
Page 35: Voltage Drop Sample (With Supplied Li Ion Battery Pack)
Advanced features Two methods are used to determine the impedance value of the cell or battery pack. The first method uses data from the battery manufacturer or another source and is simply entered into the Model 2306 from the front panel or over the GPIB bus. The second method involves a simple series of measurements as follows. -
Page 36: Voltage Drop Sample (With Model 2306 And Output Impedance Set At 0.24Ω)
Advanced features Using this value for the output impedance setting in the battery channel, the voltage drop across the output terminals, as shown in Figure 15, is 0.360V. This value is in agreement, to within 3%, with the results obtained with the battery included with the handset. Figure 15 Voltage drop sample (with Model 2306 and output impedance set at 0.24Ω) V H –... -
Page 37: Variable Output Bandwidth
Advanced features Variable output bandwidth Testing the performance of the battery charger circuitry in a handset does not require the high bandwidth performance in channel #1 or channel #2 of the Model 2306. Since a charger circuit is a voltage regulated circuit, it resembles a high capacitance load to the output of the Model 2306. - Page 38 Specifications are subject to change without notice. All Keithley trademarks and trade names are the property of Keithley Instruments. All other trademarks and trade names are the property of their respective companies. Keithley Instruments Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 • 1-800-935-5595 • www.tek.com/keithley 12/17...