Keithley 2302 Скачать руководство пользователя страница 32 | Manualshive

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24

Advanced features

Figure 12

Simulated GSM phone current profile

NOTE

The simulated GSM phone current profile contained in

Figure 12

shows a standby

current of 0.030A, a transmit current of 1.2A, and the pulse minimum voltage during
the transmit frame.

Current

Voltage

Pulse Minimum Voltage

-0.030 amps

-1.200 amps

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Содержание 2302

Страница 1: ...Model 2302 2302 PJ 2306 2306 PJ 2306 VS Battery Charger Simulator Quick Results Guide A G R E A T E R M E A S U R E O F C O N F I D E N C E...

Страница 2: ...INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS INC HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAM...

Страница 3: ...02 2302 PJ 2306 2306 PJ 2306 VS Battery Charger Simulator Quick Results Guide 1999 Keithley Instruments Inc All rights reserved Cleveland Ohio U S A Third Printing June 2003 Document Number 2306 903 0...

Страница 4: ...da are numbered sequentially When a new Revision is created allAddenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual Each new Revision includ...

Страница 5: ...onnected to mains voltage or to voltage sources with high transient over voltages Measurement Category II connections require protection for high transient over voltages often associated with local AC...

Страница 6: ...these voltages The symbol indicates a connection terminal to the equipment frame The WARNING heading in a manual explains dangers that might result in personal injury or death Always read the associat...

Страница 7: ...nection of the DUT to the output 5 Figure 5 2 wire local sense connection of the DUT to the output 6 Figure 6 Pulsed waveform 11 Figure 7 Eliminating the effect of a current transient on a pulse curre...

Страница 8: ......

Страница 9: ...ls Therefore battery and charger channel features contained in this manual apply for the Models 2306 2306 PJ and 2306 VS only battery channel features contained in this manual apply for the Models 230...

Страница 10: ...t panel and also the GPIB bus The sequence of operating instructions reflects the order in which the instrument would be configured for a typical application For each operating mode an example set of...

Страница 11: ...er For exact specifications refer toAppendix A in the Model 2306 Instruction Manual 2 Three current trigger ranges for pulsed current and long integration operation as opposed to a single range on the...

Страница 12: ...ot have an internal local sense connection Therefore the operator must connect the DUT to the supply in either a remote or local sense configuration as illustrated For a 4 wire remote sense applicatio...

Страница 13: ...NOT pass the source and sense leads together in the same twisted pair WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HA...

Страница 14: ...d DOWN keys to scroll through the primary menu items Changing channels Model 2306 2306 PJ and 2306 VS only When the main menu is displayed use the keys to change the active channel each press of the k...

Страница 15: ...he sub menu items Turning supply output ON OFF The OPERATE key is used to control the output of the power supply This key toggles the output between on and off While in one of the display modes output...

Страница 16: ...rate for pulse current and long integration measurements These measurements are covered in the paragraphs titled Pulse current mode on page 10 and Long integration mode on page 18 Average readings The...

Страница 17: ...eading is displayed on the front panel SENS FUNC CURR Select current measurement function READ Trigger 5 current measurement conversions and return the average of those 5 conversions The average of th...

Страница 18: ...1 Charger channel 2 Pulse current mode Description The Model 2306 can perform pulsed current measurements for dynamic loads The built in measurements include 1 Peak measured current measures the peak...

Страница 19: ...2306 Instruction Manual for information on pulse current step and digitizing commands The pulse measurement period T can be selected manually or be automatically set by the Model 2306 First the user m...

Страница 20: ...the current transient on the measurement is small the user can eliminate the effect of the transient by adding a suitable amount of trigger delay In this case a delay of 100 s is sufficient to elimin...

Страница 21: ...dels 2306 PJ and 2302 PJ On the 500mA current range the trigger level can be set for either the 500mA 100mA or the 10mA range Trigger level ranges 500mA range 0 500mA in 0 5mA steps 100mA range 0 100m...

Страница 22: ...elay is always present Average readings count if necessary Channel 1 and Channel 2 The AVERAGE READINGS sub menu of the PULSE CURRENT 1 2 menu item is used to set the average readings count for pulse...

Страница 23: ...oscilloscope to determine the timing and transient characteristics of a DUT The waveform information is very useful in setting up the Model 2306 reducing setup time and achieving maximum performance a...

Страница 24: ...VER 10 Set average count to 10 SENS PCUR SYNC TLEV RANG 0 5 Select the 1A trigger level range SENS PCUR SYNC TLEV ONE 0 1 Set trigger level to 100mA for 1A trigger level range SENS PCUR TIME AUTO Set...

Страница 25: ...to 10 SENS2 PCUR SYNC TLEV 0 1 Set trigger level to 100mA SENS2 PCUR TIME AUTO Set integration times automatically SENS2 PCUR SYNC DEL 50e 3 Set trigger delay to 50msec SENS2 FUNC PCUR Select pulse cu...

Страница 26: ...e user must enter the sum of the pulse periods as the integration time The GPIB commands TIMEOUT SEARCH DETECT and FAST are available exclusively in the long integration mode to optimize measurement s...

Страница 27: ...displayed range for that trigger level setting only Charger Channel 2 Set the trigger level from 0 to 5A in 5mA steps NOTE This is the same as battery channel but settings are for only one range the...

Страница 28: ...If the desired active display is not selected use the LEFT and RIGHT keys to toggle the active display The top line of the display will show which output channel is active 3 Press the UP or DOWN key...

Страница 29: ...igger level to 100mA for 1A trigger level range SENS LINT TIME AUTO Set integration time automatically for single pulse SENS FUNC LINT Select long integration function READ Trigger and return one read...

Страница 30: ...in TDMA and GSM cellular handsets where the magnitude of the ON OFF current during transmission varies by as much as a factor of 20 In the absence of any filtering capacitance between the battery and...

Страница 31: ...ion of the electronic resistance with time Figure 13 shows the variations for specific battery packs and ranges between 200 and 500mV The results of these measurements prove that the impedance of the...

Страница 32: ...nt profile NOTE The simulated GSM phone current profile contained in Figure 12 shows a standby current of 0 030A a transmit current of 1 2A and the pulse minimum voltage during the transmit frame Curr...

Страница 33: ...pedance of a battery pack The output impedance may be set from 0 00 ohms default condition to 1 00 ohms in 0 01 ohm increments from the front panel or over the GPIB bus Figure 14 shows the output volt...

Страница 34: ...14 Effect of variable output impedance control NOTE Figure 14 contains the effect of the variable output impedance control of the Model 2306 on the current and voltage performance of a GSM handset 1 4...

Страница 35: ...g Figure 15 the voltage drop during the transmit portion of the pulse of a GSM phone with the supplied Li ion battery is 0 348V Using the pulse current mode of the battery channel the measured current...

Страница 36: ...provides increased stability and eliminates oscillations that may occur The LOW bandwidth output mode is selectable from the front panel or over the GPIB bus of the Model 2306 Front panel operation f...

Страница 37: ...rammed Figure 17 Typical trigger sequence The sequence is as follows 1 Sending TRIG EXT ENAB or TRIG EXT ENAB INIT will generate a trigger output pulse when the instrument is ready for trigger in puls...

Страница 38: ...FUNC VOLT Select the voltage functionality TRIG EXT BOTH NONE Select channel 1 to only affect channel 1 TRIG EXT STEP 1 1 1 Step 1 voltage is 1 with 1 second delay TRIG EXT STEP 2 2 2 Step 2 voltage...

Страница 39: ...egration mode 18 M Menu controls 6 N NPLC rate 8 P Performance features 3 Programming example external triggering with voltage stepping 30 Programming examples long integration measurements 21 making...

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Страница 42: ...60 11 77 26 GERMANY Landsberger Strasse 65 82110 Germering 089 84 93 07 40 Fax 089 84 93 07 34 GREAT BRITAIN Unit 2 Commerce Park Brunel Road Theale Berkshire RG7 4AB 0118 929 75 00 Fax 0118 929 75 1...

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