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This version (05 Jul 2017 15:24) was approved by Antoniu Miclaus.The Previously approved version (05 Jul 2017 14:56) is available.Diff

Power Supply - Test Case

Initial Setup

In order to proceed through the test case, first of all delete the Scopy *.ini file (saves previous settings made in Scopy tool) from the following path on Windows: C:\Users\your_username\AppData\Roaming\ADI .

Open the Power Supply instrument. The interface should look like the picture below:

Press multiple times on the “Enable” buttons to check if the instrument works.

Test Title

A. Independent Controls

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Description Test Steps Steps Resources Expected Results
Checking positive voltage output 1. Set Tracking ratio control to Independent Controls The interface should look like in the “Step Resources” picture (left side).
2. Connect the power supply and voltmeter with the following pins: V+ power supply pin (red) to Scope Ch 1 (orange)
Setting values 3. Set the value to 3.3V and click enable. The interface should look like in the “Step Resources” picture (left side).
4. Monitor the power supply output with voltmeter. The voltmeter should read values between 3.25V and 3.35V. Just like shown on the left.
Changing set values 5. Change the power supply output value to 1.8V. Power Supply interface Voltmeter reading The voltmeter should read values between 1.75V and 1.85V
6. Change the power supply output value to 2.5V. Power Supply interface Voltmeter reading The voltmeter should read values between 2.45V and 2.55V
7. Change the power supply output value to 5V. Power Supply interface Voltmeter reading The voltmeter should read values between 4.95V and 5.05V
Checking Increment/Decrement Value; ±1V 8. Set the knob to ±1V interval. No orange dot on the center. The interface should look like in the “Step Resources picture (left side).
9. Set value to 3V. Then use +/- sign to change value with ±1V interval. The value should change accordingly. Set Value ± 1V = the new value
Checking Increment/Decrement Value; ±100mV 10. Set the knob to ±100mV interval. Orange dot seen on the center. The interface should look like in the “Step Resources picture (left side).
11. Set value to 300mV. Then use +/- sign to change value with ±100mV interval. The value should change accordingly. Set Value ± 100mV = the new value
Checking Negative Voltage Output 12. Change pin connections to the following: V- power supply pin (white) to Scope Ch 1 (orange).
13 Repeat Steps 3 to 11. Set the values mentioned to negative in checking negative output.

B. Tracking

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Description Test Steps Steps Resources Expected Results
Checking output when in Tracking mode 1. Set Tracking ratio control to Tracking The interface should look like in the “Step Resources” picture (left side).
2. Connect the following pins: V+ power supply pin (red) to Scope Ch 1 (orange); V- power supply pin (while) to Scope Ch 2 (blue)
Setting tracking ratio 3. Set value of positive output to 5V. Set tracking ratio to 50% The negative output value should be set automatically following the equation: V-= -(ratio*V+). For 50% tracking ratio, V-= -2.5V.
4. Monitor the power supply output with voltmeter. The voltmeter should read the following values: V+ = 4.95V to 5.05V; V- = -2.55V to -2.45V
Changing tracking ratio 5. Set tracking ratio to 10%. Power Supply interface Voltmeter reading Negative output Value should be set to -500mV. The voltmeter should read the following values: V+ = 4.95V to 5.05V; V- = -505mV to -495mV
6. Set tracking ratio to 25%.. Power Supply interface Voltmeter reading Negative output Value should be set to -1.25V. The voltmeter should read the following values: V+ = 4.95V to 5.05V; V- = -1.30V to -1.20V
7. Set tracking ratio to 66 %. Power supply interface Voltmeter reading Negative output Value should be set to -3.3 V. The voltmeter should read the following values: V+ = 4.95V to 5.05V; V- = -3.35V to -3.25V
8. Set tracking ratio to 100%. Power Supply interface Voltmeter reading Negative output Value should be set to -5V. The voltmeter should read the following values: V+ = 4.95V to 5.05V; V- = -5.05V to -4.95V

Test Results will be recorded in the following document: Power Supply - Test Case


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university/tools/m2k/scopy/test-cases/power-supply.txt · Last modified: 05 Jul 2017 15:24 by Antoniu Miclaus