4 Watt LED Bulb Testing
We are testing a 4 Watt LED Bulb at 220 Volts UPS AC input. We are using Embuilt SPEA-1 to test the Bulb properties.
Specifications:
4W, 27mA, 220-240 Volts AC, 50Hz
LED driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing, SPEA-1 Main page for 4 Watt LED Bulb
Test Results
When power is on the following results are found:
- Vrms: 222.1 Volts
- Arms: 23.37mA
- Watt: 3.825Watt
- VTHD%: 4.0%
- ATHD%: 51.2%
- V3rd Harmonics Value: 6.329 Volts
Analysis: Here we can see that VTHD is 4% which means UPS Supply has 4% distortion in Voltage. It also effect the wave form of UPS Supply or we can say that Voltage waveform is not 100% sine wave (Ideal condition).
ATHD % is 51.2 which means LED Driver(Internal in LED Bulb) distorted the AMPS waveform by 51.2 %. It also has effect of Voltage THD.
We can also see the 3rd harmonics of Voltage is 6.329 Volts.
LED driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing, SPEA-1 Main page for 4 Watt LED Bulb
Voltage 3rd Harmonics Analysis
Here we can see the 3rd harmonics of voltage in % of first harmonics. 3rd Voltage harmonics is 2.8% of Vrms Harmonics.
Note: Here we note that ideally first harmonics is to be equal of Vrms and other order harmonics are to 0.
So we need to minimize the harmonics.
LED driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing, SPEA-1 Main page for 4 Watt LED Bulb
Amps (Current) 3rd Harmonics Analysis
Here we can see the 3rd harmonics Value of Amps. It is 8.374mA it has another waveform with Amps(Current) level of 8.374mA.
LED driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing, SPEA-1 Main page for 4 Watt LED Bulb
In the above image 3rd Harmonics of Amps shows in display 6. It is 35.6% of Arms (23.54mA).
Other parameters can also be seen on SPEA-1.
SPEA-1 Software Integration
LED driver testing, SMPS Testing, 4 Watt LED Bulb, 4 Watt LED Bulb Testing, SPEA-1 Software for 4 Watt LED Bulb
Software is connected to SPEA-1 for real time data viewing and reporting.
Harmonics Spectrum Analysis
4 Watt LED Bulb Voltage Harmonics Spectrum
Above is the voltage harmonics spectrum of 4 Watt LED Bulb. All values are given in % of Vrms.
4 Watt LED Bulb Amps (Current) Harmonics Spectrum
Harmonics Report
Harmonics report is also generated for 4W led bulb which contains the parameter values with Harmonics spectrum.
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