Agilent Technologies E3615A, E3614A, E3617A, E3616A service manual Constant Voltage Mode, T E

Page 39

 

Voltage and Current Programming of the E3614A/15A/16A/

 

17A with a Voltage and Current Source

 

Remote analog voltage programming permits control of the regulated output voltage

 

or current by means of a remotely varied voltage or current. The stability of the

 

programming voltages directly affects the stability of the output. The voltage control

 

or current control on the front panel are disabled during analog programming.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N O T E

The CV(-) terminal on the rear panel is internally connected to the plus output

 

terminal. In following connections, it is recommended to use Figure 2, Figure 4, or

 

Figure 6 if the negative terminal of the “Programming Voltage” is not floted from

 

its circuits.

 

Constant Voltage Mode

 

The programming voltage is not isolated from the power supply output. The power

 

supply may be programmed with a voltage that is common to either the plus output,

 

or the minus output.

 

Programming Voltage Common to the Plus output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1

Set the CV switch down on the rear panel, and all others up.

Vin = 1/A x Vout

Vout = A x Vin

 

 

 

 

Where

Vout is the power supply output voltage.

 

Vin is the programming voltage.

 

 

 

A is the gain factor and the values of each model are as below.

 

 

 

 

 

 

Model

A

1/A

 

 

 

 

 

 

 

E3614A

0.8

1.25

 

 

 

 

 

 

 

E3515A

2.0

0.5

 

 

 

 

 

 

 

E3616A

3.5

0.29

 

 

 

 

 

 

 

E3617A

6.0

0.17

 

 

 

 

 

 

1-10-1

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Contents April Agilent E361xA 60W Bench Series DC Power SuppliesSafety Summary Operating Instructions General Information Line Fuse Operating Temperature RangeMeter Programming Resolution Temperature CoefficientInitial Inspection InstallationInstallation Data Input Power RequirementsTURN-ON Checkout Procedure Power CordOperating Instructions Operation Beyond Rated Output Local Operating ModeConnecting Loads Operating ModesRemote Operating Modes Remote Voltage SensingRemote Analog Voltage Programming MULTIPLE-SUPPLY Operation Normal Parallel OperationAUTO-PARALLEL Operation Gramming according to the remote-programming instructions Normal Series OperationTotal output voltage to ground must not exceed 240 Vdc AUTO-SERIES Operation= slave output voltage AUTO-TRACKING OperatonLoad Considerations Service Information Maintenance Test Equipment RequiredOperation Verification Tests Type Required Characteristics USE Recommended Model Performance TestsMeasurement Techniques Load Transient Response Time Constant Voltage CV TestsLoad Regulation Load Effect Line Regulation Source EffectPARDRipple and Noise Pardrms MeasurementPARDPeak-to-Peak Measurement CV Drift Stability Constant Current CC TestsCC Drift Stability Adjustment and Calibration ProcedureRegulating Loop Troubles TroubleshootingOverall Troubleshooting Procedure Reference and Bias CircuitOvervoltage Protection Circuit Troubles Symptom Checks and Probable CausesStep Action Response Probable Cause Step Measure Response Probable Cause Replaceable Parts Table A-10. Replaceable Parts List Table A-10. Replaceable Parts List Contd R28,111 0698-3228 Resistor 49.9K +-1% .125W TF TC=0+-100 RESISTOR-VAR 10K +-10% ALL IC V RGLTR-FXD-POS 4.8/5.2V TO-220 PKG ALL DIODE-GEN PRP 180V 200MA DO-35 ALL Table A-11. Component Value Model Page Page Page Page Manual Supplement T E Constant Voltage ModeProgramming Voltage Common to the Minus Output Alternative Voltage Programming Using ResistorsProgramming Voltage Common to the Minus Output Constant Current with Voltage Programming Constant Current ModeCurrent Monitoring Remote Resistor Programming, Constant Voltage Remote Resistor Programming ConnectionsRemote Resistor Programming, Constant Current Certification Declaration of Conformity
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