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Rigol DP1308A, Руководство по проверке работоспособности

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Chapter 2 Constant Voltage Tests 

 

RIGOL 

DP1308A Performance Verification Manual

 

2-1 

Chapter 2

 

Constant 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 (CV Source Effect)   

 

CV Ripple and Noise   

 

Transient Response Time   

 

CV Programming and Readback Accuracy   

Содержание DP1308A

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

Страница 2: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 28: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 38: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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