Common Mode Current Noise | Agilent Technologies E3632A specification

Chapter 3 Calibration Procedures

Common Mode Current Noise

2Turn on the power supply. Select the 15V/7A range, enable the output, and set the display to the limit mode. When the display is in the limit mode, program the current to full rated value (7.0A) and the voltage to the full rated value (15.0V).

3The output current should be at the full-rated rating with the CC annunciator on. If not lit, adjust the load so that the output voltage drops slightly until the CC annunciator lights.

4Divide the reading on the rms voltmeter by the load resistance to obtain rms current. The readings should be within the limit of 2mA.

Common Mode Current Noise

The common mode current is that ac current component which exists between the output or output lines and chassis ground. Common mode noise can be a problem for very sensitive circuitry that is referenced to earth ground. When a circuit is referenced to earth ground, a low level line-related ac current will flow from the output terminals to earth ground. Any impendance to earth ground will create a voltage drop equal to the output current flow multiplied by the impendance.

1Turn off the power supply and connect a 100K9 resistor (RS) and a 2200 pF capacitor in parallel between the (-) terminal and chassis ground.

2Connect a digital voltmeter across RS.

3Turn on the power supply. Select the 15V/7A range, enable the output, and set the display to the limit mode. When the display is in the limit mode, program the output to the full rated value (15.0V and 7.0A).

4Record the voltage across RS and convert it to current by dividing by the resistance (DVM reading/100K9). Note that the current is less than 1.5 mA.

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Agilent Technologies E3632A manual Calibration Procedures Common Mode Current Noise

Contents

3DUW1XPEHU $SULO Service Guide Flexible system features Convenient bench-top features Front Panel at a Glance Before performing calibration T e Front-Panel Voltage and Current Limit Settings OVP Display Annunciators Key to Rear Panel at a Glance This Book Page Contents Theory of Operation Contents Service Contents Specifications Specifications Specifications Performance Specifications Performance Specifications OVP Specifications Supplemental Characteristics Supplemental Characteristics Opt 0E3 Dimensions of Agilent E3632A Power Supply Specifications Supplemental Characteristics Quick Start Quick Start Quick Start To Prepare the Power Supply for Use To Prepare the Power Supply for UseConnect the power cord and turn on the power supply Enable the outputs 100 or 115 Vac, 4 AT fuse 230 Vac, 2.5 AT fuse To Check the Rated Voltages of the Power Supply Quick Start To Check the Rated Voltages of the Power SupplyTurn on the power supply To Check the Rated Currents of the Power Supply Quick Start To Check the Rated Currents of the Power SupplyAdjust the voltage limit value to 1.0 volt Page Set the display for the limit mode To Use the Power Supply in Constant Voltage ModeAdjust the knob for the desired current limit Connect a load to the desired output terminals Return to the meter mode T e Adjust the knob for the desired output voltage To Use the Power Supply in Constant Current Mode Adjust the knob for the desired voltage limitConnect a load to the output terminals Verify that the power supply is in the constant current mode T e Adjust the knob for the desired output current To Store and Recall the Instrument State Restore the operating state Turn on the recall modeDone Recall To Program Overvoltage Protection Setting the OVP Level and Enable the OVP Circuit Move to the clear mode Ovp on Readjust the OVP trip level or the output voltage levelChecking OVP Operation Clearing the Overvoltage Condition Clear the overvoltage condition and exist this menu To Program Overcurrent Protection Setting the OCP Level and Enable the OCP Circuit Move to the clear mode Ocp on Readjust the OCP trip level or the output current levelChecking OCP Operation Clearing the Overcurrent Condition Quick Start To Rack Mount the Power Supply To Rack Mount the Power Supply Calibration Procedures Calibration Procedures Calibration Interval Agilent Technologies Calibration Services Automating Calibration Procedures Calibration Procedures Automating Calibration ProceduresRecommended Test Equipment Test Considerations U t i o n Calibration Procedures Test Considerations Performance Verification Tests Calibration Procedures Performance Verification TestsSelf-Test Performance Verification Tests Measurement Techniques Setup for Most Tests General Measurement Techniques Calibration Procedures Constant Voltage CV Verifications Constant Voltage Test SetupConstant Voltage CV Verifications Voltage Programming and Readback Accuracy CV Load Regulation CV Line RegulationVolt Normal Mode Voltage Noise CV Ripple and Noise Load Transient Response Time Calibration Procedures Constant Current CC Verifications Constant Current Test SetupConstant Current CC Verifications Current Programming and Readback Accuracy Curr CC Load Regulation CC Line Regulation Normal Mode Current Noise CC Ripple and Noise Calibration Procedures Common Mode Current Noise Common Mode Current Noise Performance Test Record for Agilent E3632A CV Performance Test RecordCC Performance Test Record Calibration Security Code Calibration Procedures Calibration Security Code To Unsecure the Power Supply for Calibration Turn on the front-panel calibration modeMove to the security code by pressing the Secure key Turn off the calibration mode To Unsecure the Power Supply Without the Security Code Calibration Procedures Calibration Count Calibration CountCalibration Message General Calibration/Adjustment Procedure Move down a level to the voltage calibration mode Voltage and OVP CalibrationCalibrate DAC and select the low voltage calibration point Lo +0.5000 Current and OCP Calibration Hi 28.995 Select the low current calibration point Lo 0.200 a Mi 3.499 a Aborting a Calibration in Progress Turn off the power supply to exit the calibration mode Calibration Record for Agilent E3632A Calibration Procedures Calibration Record for Agilent E3632A Calibration Procedures Error Messages Error MessagesSystem Error Messages Self-Test Error MessagesPage Calibration Program Calibration Procedures Calibration Program Clear Screen Print TABXY10,7,BEGIN DAC Error Correction Else Print TABXY10,7,BEGIN CURRENT/OCP Calibration Print TABXY10,5,CURRENT/OCP Calibration Complete End of Program Theory of Operation Theory of Operation Theory of Operation Block Diagram Overview Block Diagram Overview Block Diagram Theory of Operation AC Input and Bias Supplies AC Input and Bias Supplies Theory of Operation Floating Logic Floating Logic Serck Xfpsk Theory of Operation To-A Converter To-A Converter Theory of Operation To-D Converter To-D Converter Theory of Operation Power Mesh and Control Power Mesh and Control Theory of Operation Power Mesh and Control Earth-Referenced Logic Front PanelTheory of Operation Earth-Referenced Logic Service Service Is the Power Supply Inoperative? Operating ChecklistDoes the Power Supply Fail Self-Test? Service Operating Checklist Standard Repair Service worldwide Types of Service AvailableService Types of Service Available Express Exchange U.S.A. only Repacking for Shipment Service Repacking for Shipment To Replace the Power-Line Fuse Electrostatic Discharge ESD PrecautionsService Electrostatic Discharge ESD Precautions Surface Mount Repair To Disconnect the Output Using an External Relay Installation ProcedureService To Disconnect the Output Using an External Relay Unit Reports Errors 740 to Troubleshooting HintsU t i o n Service Troubleshooting Hints Unit is Inoperative Service Troubleshooting Hints Bias Supplies Problems Power-On Self-Test Self-Test ProceduresService Self-Test Procedures Complete Self-Test ±10% tolerance Service Self-Test Procedures 100 Replaceable Parts To Order Replaceable Parts KMG1H222H E3632-60002 Main PC Assembly Replaceable Parts E3632-60002 Main PC Assembly 105 106 107 108 109 110 Agilent Part Qty Description Mfr Mfr Part Number Code E3632-60004 Front Panel Display PC Assembly E3632A Power SupplyAssembly E3632-60005 Front Frame Assembly Mfr Code Manufacturer’s Name Manufacturer’s List 114 Backdating Lqfoxghglqwklvfkdswhu Schematics ‡ &RPSRQHQW/RFDWRU0DLQ%RDUGSDJH ‡ $&DQG$&6\VWHP6FKHPDWLFSDJH‡ &RPSRQHQW/RFDWRUURQWSDQHOSDJH Page Page Page Page Page Page Page Page Warranty