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NI PXIe-4154 Calibration Procedure

Note

For more information about transient response, refer the

Transient Response

topic in the

Fundamentals

section of the

NI DC Power Supplies and SMUs Help

.

Figure 10.

Example Transient Response Dip and

Transient Response Recovery Time Waveform

Note

Measurement noise can be improved by software filtering or averaging the

oscilloscope. Trigger threshold can be adjusted to prevent false triggering due to
noise.

20 us/div

50 mV/div

0

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Summary of Contents for PXIe-4154

Page 1: ...gulation Verification 17 Remote Sense Accuracy Verification 19 Transient Response Verification Channel 0 Only 20 Adjustment 23 Considerations 24 Adjusting Current Measurement 25 Adjusting Voltage Outp...

Page 2: ...ice number for example 4154 and select the specifications document for your device Use this method any time the Start menu is referenced in this document Documentation Requirements For information abo...

Page 3: ...cient Minimum power rating 0 5 W External Current Source Fluke 5500A or Fluke 5520A Current Measurement Current output of at least 3 A Less than 8 A RMS Normal Mode Current Noise Programmable Electron...

Page 4: ...t least 30 minutes after the NI DCPower driver is loaded Unless manually disabled the NI DCPower driver automatically loads with the operating system and enables the device Allow the recommended warm...

Page 5: ...wer Supplies and SMUs Getting Started Guide for information about how to install the software and hardware and how to configure the device in MAX Verification This section provides information for ver...

Page 6: ...when measuring current output using a 0 1 shunt and voltage output for 0 V level Refer to Figure 2 for a connection diagram Figure 2 Voltage Verification Connection Diagram Note Use separate twisted...

Page 7: ...00 m precision shunt Refer to Figure 4 for a connection diagram with a 100 precision shunt Figure 3 Current Verification Connection Diagram with 100 m Precision Shunt Table 2 NI PXIe 4154 Voltage Outp...

Page 8: ...7 5 mA and 0 1 mA outputs from the NI PXIe 4154 while setting the voltage level to its maximum value Take measurements using the DMM as a voltmeter at each point dividing by the characterized value of...

Page 9: ...t point using the DMM Compare these values to the voltage measurements taken at each test point using the NI PXIe 4154 Note After requesting a new voltage wait one second to take a measurement with an...

Page 10: ...4 in order to complete verification To verify positive currents use the NI PXIe 4154 channel as a source For example in the 1 5 A range on Channel 1 program the NI PXIe 4154 to output 375 mA 750 mA 1...

Page 11: ...nt is always zero Note After requesting a new current wait one second to take a measurement with an external DMM and NI PXIe 4154 to ensure the system has adequate time to settle The verification limi...

Page 12: ...e external DMM or current source Refer to Figure 1 for a connection diagram Table 5 NI PXIe 4154 Current Measurement Verification Points Channel Range Precision Shunt Value Test Point Measured Current...

Page 13: ...m 0 04 0 7 mA 1 5 A 0 065 0 7 mA 2 25 A 0 1025 0 7 mA 3 A 0 14 0 7 mA 1 1 5 A 100 m 0 A 0 12 0 35 mA 375 mA 0 12 0 35 mA 750 mA 0 17 0 35 mA 1 125 A 0 245 0 35 mA 1 5 A 0 32 0 35 mA Table 5 NI PXIe 41...

Page 14: ...tronic load Refer to Figure 1 for a connection diagram Use short wires to jumper Sense to Output and Sense to Output Refer to Table 6 for a list of output resistance test points that you must request...

Page 15: ...oltage measured across the 100 m precision shunt by the characterized value of the 100 m precision shunt 4 Increase the electronic load to 1 A constant current 5 Record the DMM voltage at the Output a...

Page 16: ...oints Channel V Level I Limit Test Point Measured Voltages Measured Currents Limits of Accuracy Calculated Resistance V 1 V 2 I 1 I 2 Lower Limit Upper Limit As Found As Left 0 4 V 3 A 40 m 0 04312 0...

Page 17: ...n diagram Note For Channel 0 of the NI PXIe 4154 ensure that output resistance is set to 0 during voltage load regulation verification Complete the following steps to verify voltage load regulation 1...

Page 18: ...for a list of resistance values and measurements to complete verification Refer to Figure 7 for a connection diagram Note For each test the units for all current measurements and calculations should...

Page 19: ...it Remote Sense Accuracy Verification To verify the remote sense accuracy of an NI PXIe 4154 use a test circuit of three resistors that simulate voltage drop between the device and a load Channels 0 a...

Page 20: ...able electronic load with dynamic current capability Transient response validation should be performed only after successfully validating the voltage and current measurement accuracy and the load regu...

Page 21: ...ransient response dip as displayed in Figure 10 The transient response recovery time is measured from the time the dip begins until the time at which the waveform crosses above the final voltage minus...

Page 22: ...Fundamentals section of the NI DC Power Supplies and SMUs Help Figure 10 Example Transient Response Dip and Transient Response Recovery Time Waveform Note Measurement noise can be improved by software...

Page 23: ...ts the following NI PXIe 4154 specifications Voltage programming accuracy Current programming accuracy Voltage measurement accuracy Current measurement accuracy Output resistance accuracy The adjustme...

Page 24: ...e refer to the example programs installed with NI DCPower 3 Call niDCPower Cal Adjust function s When the measurements required for adjustment of a range are complete call one of the niDCPower Cal Adj...

Page 25: ...the precision shunt For negative current adjustment points an external current source is required to provide the necessary current The voltage level for the NI PXIe 4154 should be set to 0 V Refer to...

Page 26: ...ke measurements using the external DMM at each voltage test point Note Do not use the NI DCPower SFP to request test points for adjusting voltage outputs Note After requesting a new voltage wait one s...

Page 27: ...shunt Refer to Figure 4 for a connection diagram with a 100 precision shunt Refer to Table 21 for a list of current test points that you must request and measure for each range For example the 30 mA r...

Page 28: ...or the niDCPower_CalAdjustCurrentLimit function Figure 14 NI DCPower Cal Adjust Current Limit VI Block Diagram Table 21 NI PXIe 4154 Current Output Adjustment Points Channel I Range Required Adjustme...

Page 29: ...st 0 1 V 4 V and 8 V outputs from the NI PXIe 4154 Take measurements using an external DMM and NI PXIe 4154 at each test point Note After requesting a new voltage wait one second to take a measurement...

Page 30: ...he electronic load to an initial constant current of 100 mA Obtain V1 and I1 by measuring the voltage and calculating the current using the external DMMs and precision shunt Use the following steps to...

Page 31: ...e 25 NI PXIe 4154 Output Resistance Adjustment Points Channel V Range V Level I Limit Required Adjustment Points 0 6 V 4 V 3 A 0 0 5 0 9 Table 26 NI DCPower Cal Adjust Output Resistance VI Parameter D...

Page 32: ...export data NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS U S Government Customers The data contained in this...

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