Informações do equipamento

Keithley 2308 Fonte de alimentação
Fabricante:
Modelo:
2308
Data:
2008
Categoria:
Grupo:
Descrição:

Informações

The Model 2308 is a specialized power supply that has a very fast recovery to large, near instantaneous load current transitions. Conventional power supplies do not have this capability. The Model 2308 is designed specifically to respond to large load changes and very short pulsed loads with small transient voltage drop and a very fast recovery time. Typical devices that have these types of characteristic loads are mobile phones, wireless communication modules, and other portable, battery operated devices. The Model 2308 can maintain a near-constant output, even under quickly-changing load conditions. The power supply can measure a wide range of load currents. It can resolve down to 0.1 μA and measure up to 5 A. It has fast measurement capability as well and can measure load current pulses as narrow as 50 μsec. The Model 2308 can simulate the output of a battery. Its programmable output resistance can simulate a battery’s internal resistance so that the voltage output looks exactly like that of a battery’s output. The two channels can also sink current so that one channel (the battery channel) simulates a discharged battery, while the other channel (the charger channel) can be used to simulate a charger.

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Manual do Usuário
Tipo manual:
Manual do Usuário
Páginas:
226
Tamanho:
3.96 Mbytes (4154798 Bytes)
Idioma:
english
Revisão:
A
Manual-ID:
2308-900-01 Rev. A
Data:
01 Setembro 2008
Qualidade:
Documento eletrônico, digitalização, bem legível.
Upload de data:
23 Julho 2020
MD5:
6f5f6eccfe34cf6037948470b3770e7c
Downloads:
77

Informações

1 Getting Started ... 1-1 Overview ... 1-2 Applications ... 1-2 Performance features ... 1-2 Warranty information ... 1-2 Contact information ... 1-2 Specifications ... 1-3 Inspection ... 1-3 Options and accessories ... 1-3 Power supply overview ... 1-3 Remote display option ... 1-5 Power-up ... 1-7 Line power connection ... 1-7 Power-up sequence ... 1-7 Fuse replacement ... 1-8 Display modes ... 1-8 Default settings ... 1-11 Setups - Save, Power-on, and Recall ... 1-12 Menu ... 1-12 Getting around the MENU ... 1-14 SCPI programming ... 1-15 2 Basic Power Supply Operation ... 2-1 Test connections ... 2-2 Remote sense ... 2-5 Local sense ... 2-5 RFI considerations ... 2-6 Outputting voltage and current ... 2-6 Setting voltage protection value ... 2-6 Selecting proper current range ... 2-8 Selecting current limit mode ... 2-8 Editing output voltage and current limit values ... 2-9 Using the OPERATE key ... 2-11 Output bandwidth ... 2-11 Output impedance ... 2-12 Changing the battery channel’s output impedance ... 2-12 SCPI programming - outputting voltage and current ... 2-13 Command notes (outputting voltage and current) ... 2-14 Reading back V and I ... 2-16 V and I display modes (Single or Dual) ... 2-16 Measurement configuration ... 2-16 SCPI programming — measure V and I, and DVM input ... 2-17 Command notes (measure V and I, and DVM input) ... 2-18 Independent voltage measurements (DVM) ... 2-18 DVM input display mode ... 2-18 Measurement configuration ... 2-19 SCPI programming - DVM ... 2-19 Sink operation ... 2-19 Programming examples ... 2-21 Outputting and reading back V and I ... 2-21 DVM measurements ... 2-21 Analog output ... 2-22 Pulse Current Measurements ... 3-1 Overview ... 3-2 Trigger level ... 3-2 Trigger delay ... 3-3 Integration times ... 3-3 Average readings count ... 3-4 Measurement configuration ... 3-4 Current range ... 3-5 Integration times ... 3-5 Average readings count ... 3-5 Trigger delay and trigger level ... 3-6 Pulse current display mode ... 3-7 Pulse current measurement procedure ... 3-7 No pulses detected ... 3-8 Determining correct trigger level (pulse current) ... 3-9 TRIG NOT DETECTED message ... 3-11 SCPI programming - pulse current measurements ... 3-12 Command notes (pulse current measurements) ... 3-14 Using FAST, SEARch, and DETect ... 3-16 Pulse current digitization ... 3-19 Pulse current step method ... 3-20 TLEV steps ... 3-21 Timeout setting ... 3-25 Integration time ... 3-25 Range with pulse current step ... 3-26 Programming examples ... 3-26 Pulse current measurements ... 3-26 Pulse current digitization ... 3-27 Pulse current STEP method (battery channel only) ... 3-27 Long Integration Measurements ... 4-1 Overview ... 4-2 Integration time ... 4-3 Trigger edge ... 4-3 Trigger level ... 4-3 Pulse timeout ... 4-4 Measurement configuration ... 4-6 Current range ... 4-6 Integration time ... 4-6 Pulse timeout ... 4-7 Trigger edge and trigger level ... 4-7 Long integration display mode ... 4-8 Long integration measurement procedure ... 4-8 General notes ... 4-9 Determining correct trigger level (long integration) ... 4-9 SCPI programming ... 4-11 Command notes (long integration measurements) ... 4-12 Using FAST, SEARch, and DETect ... 4-12 Programming examples ... 4-16 Relay Control ... 5-1 Overview ... 5-2 Connections ... 5-3 Controlling relays ... 5-4 SCPI programming ... 5-5 GPIB Operation ... 6-1 Introduction ... 6-2 GPIB bus connections ... 6-2 Primary address ... 6-3 Setting the GPIB timeout for responses ... 6-4 Long integration readings ... 6-4 Pulse current readings ... 6-4 MAV (Message Available Bit) ... 6-4 General bus commands ... 6-5 REN (remote enable) ... 6-5 IFC (interface clear) ... 6-6 LLO (local lockout) ... 6-6 GTL (go to local) ... 6-6 DCL (device clear) ... 6-6 SDC (selective device clear) ... 6-6 GET (group execute trigger) ... 6-6 SPE, SPD (serial polling) ... 6-6 Front panel aspects of GPIB operation ... 6-6 Remote indicator and LOCAL key ... 6-7 Error and status messages ... 6-7 Programming syntax ... 6-7 Command words ... 6-7 Program messages ... 6-9 Response messages ... 6-11 Message exchange protocol ... 6-12 Status Structure ... 7-1 Overview ... 7-2 Status byte and SRQ ... 7-2 Status register sets ... 7-2 Queues ... 7-2 Clearing registers and queues ... 7-3 Programming and reading registers ... 7-4 Programming enable registers ... 7-4 Reading registers ... 7-5 Status byte and service request (SRQ) ... 7-5 Status byte register ... 7-6 Service request enable register ... 7-7 Serial polling and SRQ ... 7-7 Status byte and service request commands ... 7-8 Status register sets ... 7-8 Register bit descriptions ... 7-8 Condition registers ... 7-12 Event registers ... 7-12 Event enable registers ... 7-13 Queues ... 7-14 Output queue ... 7-15 Error queue ... 7-15 Programming example - read error queue ... 7-16 Common Commands ... 8-1 Overview ... 8-2 IEEE-488.2 common commands and queries ... 8-2 *IDN? ... 8-2 *OPC ... 8-3 *SAV <NRf> and RCL <NRf> ... 8-3 *RST ... 8-4 *TRG ... 8-4 *TST? ... 8-4 *WAI ... 8-4 Measurement Commands and Optimizing Measurement Speed ... 9-1 Overview ... 9-2 Command notes: Signal-oriented measurement commands and queries ... 9-3 Optimizing measurement speed ... 9-5 Auto Zero State ... 9-5 Programming examples ... 9-6 GPIB 488.1 protocol ... 9-7 Selecting the 488.1 protocol ... 9-7 Protocol differences ... 9-8 Trigger on talk both channels ... 9-9 Bus commands ... 9-10 Command notes ... 9-10 Trigger continuous mode ... 9-10 Bus commands ... 9-10 Command notes ... 9-11 Using trigger continuous mode ... 9-11 Programming sequence example ... 9-11 DISPlay and FORMat ... 10-1 DISPlay subsystem ... 10-2 Command notes (SCPI commands - display) ... 10-2 FORMat subsystem ... 10-4 Command notes (SCPI commands - data format) ... 10-5 SCPI Tables ... 11-1 SCPI command subsystems reference tables ... 11-2 General notes ... 11-2 DISPlay command summary ... 11-3 FORMat command summary ... 11-4 OUTPut command summary ... 11-5 SENSe command summary ... 11-6 SOURce command summary ... 11-13 STATus command summary ... 11-14 SYSTem command summary ... 11-15 Performance Verification ... 12-1 Introduction ... 12-2 Verification test requirements ... 12-2 Environmental conditions ... 12-2 Warm-up period ... 12-2 Line power ... 12-3 Recommended test equipment ... 12-3 Resistor connections ... 12-3 Resistor considerations ... 12-4 Verification limits ... 12-4 Example limits calculation ... 12-4 Performing the verification test procedures ... 12-4 Test summary ... 12-4 Test considerations ... 12-5 Output voltage accuracy ... 12-5 Voltage readback accuracy ... 12-7 Compliance current accuracy ... 12-8 Current readback accuracy ... 12-9 5 A range readback accuracy ... 12-9 500 mA range readback accuracy ... 12-10 50 mA range readback accuracy ... 12-12 5 mA range readback accuracy ... 12-13 Digital voltmeter input accuracy ... 12-15 x A B Battery/Charger Simulator User’s Manual Table of Contents Topic Page Calibration ... 13-1 Introduction ... 13-2 Environmental conditions ... 13-2 Temperature and relative humidity ... 13-2 Warm-up period ... 13-2 Line power ... 13-2 Calibration considerations ... 13-2 Calibration cycle ... 13-3 Recommended calibration equipment ... 13-3 Resistor connections ... 13-3 Resistor considerations ... 13-3 Front panel calibration ... 13-4 Step 1: Prepare the Model 2308 for calibration ... 13-4 Step 2: Perform battery channel calibration steps ... 13-5 Step 3: Perform charger channel calibration steps ... 13-9 Step 4: Enter calibration dates, and save calibration ... 13-10 Remote calibration ... 13-11 Remote calibration display ... 13-11 Remote calibration procedure ... 13-11 Step 1: Prepare the Model 2308 for calibration ... 13-11 Step 2: Perform battery channel calibration steps ... 13-12 Step 3: Perform charger channel calibration steps ... 13-13 Step 4: Program calibration date ... 13-14 Step 5: Save calibration constants and lock out calibration ... 13-14 Changing the calibration code ... 13-15 Changing the code from the front panel ... 13-16 Changing the code by remote ... 13-16 Resetting the calibration code ... 13-16 Viewing calibration date and count ... 13-17 Viewing date and count from the front panel ... 13-17 Acquiring date and count by remote ... 13-17 Topic Page Error and Status Messages ... A-1 Error and status message definitions ... A-2 Calibration Reference ... B-1 Introduction ... B-2 Command summary ... B-2 Miscellaneous commands ... B-2 Detecting calibration errors ... B-5 Reading the error queue ... B-5 Error summary ... B-5 Status byte EAV (Error Available) bit ... B-6 Generating an SRQ on error ... B-6 Detecting calibration step completion ... B-6 Using the *OPC command ... B-7 Using the *OPC? query ... B-7 Generating an SRQ on calibration complete ... B-7

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