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Chapter 1 Test Preparations

RIGOL

DP1308A Performance Verification Manual

1-1

Chapter 1

Test Preparations

This chapter introduces the test preparations as well as the recommended test
devices.

Topics of this chapter:



Self-test and Warm-up



Recommended Test Devices



Voltage and Current Values



Test Result Record

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Summary of Contents for DP1308A

Page 1: ...RIGOL Performance Verification Manual DP1308A Programmable Linear DC Power Supply Feb 2014 RIGOL Technologies Inc...

Page 2: ......

Page 3: ...erial RIGOL shall not be liable for losses caused by either incidental or consequential in connection with the furnishing use or performance of this manual as well as any information contained Any par...

Page 4: ...of power cord to the Protective Earth terminal before any inputs or outputs Connect the Probe Correctly If a probe is used do not connect the ground lead to high voltage since it has the isobaric elec...

Page 5: ...humid environment Do Not Operate in an Explosive Atmosphere In order to avoid damages to the device or personal injuries it is important to operate the device away from an explosive atmosphere Keep P...

Page 6: ...rovide Power for the Active Load In order to avoid the anti irrigation current which leads to the power control loop out of control and damages the powered device this power supply can only provide po...

Page 7: ...struments geerdet Schlie enSie die Erdungsklemmen an keine hohe Spannung an Beachten Sie alle Anschl sse Zur Vermeidung von Feuer oder Stromschlag beachten Sie alle Bemerkungen und Markierungen auf de...

Page 8: ...ab jedweder explosiven Atmosph re zu betreiben Ger teoberfl chen sauber und trocken halten Um den Einflu von Staub und Feuchtigkeit aus der Luft auszuschlie en halten Sie bitte die Ger teoberfl chen s...

Page 9: ...published specifications Main topics of this manual Chapter 1 Test Preparations This chapter introduces the test preparations as well as the recommended test devices Chapter 2 Constant Voltage Tests...

Page 10: ...1 4 Chapter 2 Constant Voltage Tests 2 1 Preparation 2 2 CV Load Adjustment Rate CV Load Effect 2 3 CV Linear Adjustment Rate CV Source Effect 2 5 CV Ripple and Noise 2 7 Transient Response Time 2 10...

Page 11: ...Verification Manual 1 1 Chapter 1 Test Preparations This chapter introduces the test preparations as well as the recommended test devices Topics of this chapter Self test and Warm up Recommended Test...

Page 12: ...switch at the rear panel then press the power key at the front panel the instrument starts and performs self test If the instrument passes the self test the user interface is displayed otherwise the s...

Page 13: ...ad Table 1 1 Recommended Test Devices Instrument Performance Requirement Recommended Instrument Digital Oscilloscope Bandwidth 100 MHz Minimum Vertical Scale 2mV Bandwidth Limit 20MHz RIGOL DS1102E Di...

Page 14: ...el Rated Output Voltage Max Output Voltage Rated Output Current Max Output Current 6V 5A 6 V 6 3 V 5 A 5 25A 25V 1A 25 V 26 25 V 1 A 1 05A 25V 1A 25 V 26 25 V 1 A 1 05A Test Result Record Record and k...

Page 15: ...tant Voltage Tests This chapter introduces how to test the specifications of DP1308A under CV mode Topics of this chapter Preparation CV Load Adjustment Rate CV Load Effect CV Linear Adjustment Rate C...

Page 16: ...y DP1308A refer to Table 2 1 via the voltage selector at the rear panel of the power supply according to the AC line voltage of your nation Connect the device recommended in Recommended Test Devices a...

Page 17: ...voltage is I r Ve Therefore the voltage test point is generally located at A to reduce the error caused by the terminal voltage Besides the contact resistance generated by this terminal and the power...

Page 18: ...record the current reading U0 on the multimeter 6 Set the electronic load for the output channel s rated current The output status of the power supply should be CV and record the reading U1 on the mul...

Page 19: ...Off under the channel to be tested to enable power output 4 Turn on the electronic load and set the electronic load for the output channel s rated current 5 Turn on the multimeter and select DCV meas...

Page 20: ...n Appendix B Specifications The measurement results should be no greater than 0 01 10 Repeat steps 1 to 9 to test the CV linear adjustment rates of the other two output channels Table 2 3 Setting and...

Page 21: ...igure 2 1 connect the positive terminal of the oscilloscope probe to the positive terminal of the output channel of the power supply and the ground terminal to the negative terminal Note you d better...

Page 22: ...the oscilloscope to AC coupling mode with 1M termination and turn on the 20MHz bandwidth limit Enable the peak to peak measurement function of the oscilloscope The output status of the power supply s...

Page 23: ...ge Tests RIGOL DP1308A Performance Verification Manual 2 9 Table 2 4 Setting and specification of CV ripple and noise test Channel 6V 5A 25V 1A 25V 1A Voltage V 6 25 25 Current A 5 25 1 05 1 05 Specif...

Page 24: ...be tested Set the voltage and current of the channel to be tested according to Table 2 5 Press On Off under the channel to be tested to enable power output 4 Make sure that the programmable electroni...

Page 25: ...nual 2 11 Table 2 5 Setting and specification of transient response time test Channel 6V 5A 25V 1A 25V 1A Voltage V 6 25 25 Current A 5 25 1 05 1 05 Electronic Load Current A High Level 5 High Level 1...

Page 26: ...6V 5A channel APPLy P25V 0 1 05 for 25V 1A channel APPLy N25V 0 1 05 for 25V 1A channel Send the OUTPut STATe P6V P25V N25V ON command to enable the output of the channel to be tested 2 Turn the mult...

Page 27: ...ply should be CV Read and record the measurement value U3 on the multimeter 3 Send the MEASure VOLTage P6V P25V N25V command via the remote interface USB LAN or GPIB to read and record the voltage U4...

Page 28: ......

Page 29: ...tant Current Tests This chapter introduces how to measure the specifications of the power supply under CC mode Topics of this chapter Preparation CC Load Adjustment Rate CC Load Effect CC Linear Adjus...

Page 30: ...ramming and readback accuracy Connect the devices recommended in Recommended Test Devices according to the figure below under normal temperature about 25 Note that a current monitoring resistor R 0 1...

Page 31: ...rminals S S Figure 3 2 4 wire Current Monitoring Resistor 2 Turn on the AC source and set its voltage to the AC line voltage Set the electronic load to short circuit mode and the output status of the...

Page 32: ...rrent U1 R 6 Calculate the CC load adjsutment rate 100 Current Output Rated 0 1 offset I R U R U wherein offset I about 250 uA is the offset caused by error 7 Compare the measurement result with the s...

Page 33: ...el to be tested to enable power output 4 Turn on the electronic load and set it to CV mode Set its voltage to approximately the rated output voltage of the channel under test and the output status of...

Page 34: ...fication in Appendix B Specifications 10 Repeat steps 1 to 9 to test the CC linear adjustment rates of the other two output channels Table 3 2 Setting and specification of CC linear adjustment rate te...

Page 35: ...Turn on DP1308A and press 6V 25V or 25V at the front panel to select the channel to be tested Set the voltage and current of the channel under test according to Table 3 3 Press On Off under the chann...

Page 36: ...annel APPLy P25V 5 0 for 25V 1A channel APPLy N25V 5 0 for 25V 1A channel Send the OUTPut STATe P6V P25V N25V ON command to enable the output of the channel to be tested 2 Turn on the multimeter and s...

Page 37: ...s of the power supply should be CC Read and record the measurement value U3 on the multimeter Calculate the current I3 U3 R 3 Send the MEASure CURRent P6V P25V N25V command via the remote interface US...

Page 38: ......

Page 39: ...mV Output Voltage No Load U0 Output Voltage Full Load U1 Calculation Result CV Linear Adjustment Rate Specification 0 01 2mV Output Voltage Undervoltage U0 Output Voltage Overvoltage U1 Calculation Re...

Page 40: ...ltage Readback Specification 0 5mV 1 5mV Measurement Result 0V Measurement Result Rated Voltage CC Load Adjustment Rate Specification 0 01 250uA Short circuit Current U0 R Full Load Current U1 R Calcu...

Page 41: ...ification Manual 3 CC Programming and Readback Accuracy Programming Specification 0 5mA 0 1mA Measurement Result 0A Measurement Result Rated Current Readback Specification 0 5mA 0 1mA Measurement Resu...

Page 42: ...V 0 1V to 27V 0 1V to 27V Overcurrent Protection 0 1A to 5 5A 0 1A to 1 2A 0 1A to 1 2A Load Adjustment Rate output percentage offset Voltage 0 01 2mV Current 0 01 250 A Linear Adjustment Rate output...

Page 43: ...ms OVP OCP Accuracy output percentage offset 0 5 0 5V 0 5 0 5A Activation Time 1 5ms OVP 3V 10ms OVP 3V and OCP Mechanical Dimensions 235 mm W x 155 mm H x 384 mm D Weight 8 5 kg Power AC Input 50Hz t...

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