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| Siglent SPD3303D review |
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| FrankBuss:
Looks like the SPD3303C is very similar. Some modes are missing, like the wave display or the timer, but if you just need a normal power supply, the LED panel should work, too. But the contrast and brightness of the display of the SPD3303D is very good, so it is a matter of taste, if you prefer good old LED digits. |
| g0hjq:
Thanks for the review Frank, I've just received my SDP3303D, which cost a 240 GB Pounds from Barsoom.eu on Amazon. Surprisingly it was sent by DHL direct from China, and arrived in 5 days. From what I've seen so far, it looks like a nice power supply - reasonably compact, easy to use, 3 isolated outputs, very quiet, and the problems with glitches on Channel 3 seem to have been fixed. NewFile1.png shows channel 3 (top) and 1 (bottom) at power on from cold with no load. Output 3 spikes at up to 1.7 volts, then drops down to about one volt. I can't imagine this causing problems with the 3.3 or 5v logic loads it's obviously intended for. NewFile2.png shows channels 3 (top) and 1 (bottom) when the outputs are switch on. NewFile3.png shows channel 3 recovering from a short circuit. Removing a 2 amp load causes just a few tens of milivolts ripple before setting down. The LCD display is gorgeous - very clear and easy to read, but I'm not really sure it's worth the extra cost over the SPD3303C with the LED display. Gary. |
| artelse:
Thanks for the response! I am still undecided about getting the Rigol DP832 or the Siglent SPD3303D.. The good thing about the Siglent is the small footprint while the Rigol is quite a beast, but has more options. |
| FrankBuss:
The Siglent is cheaper than the Rigol. If the Siglent has all features you need, then it might be better for you. But I think the user interface of the Rigol is better, sometimes you just want to enter the voltage, not turning a knob endlessly (the SPD3303D has no acceleration function, at least not in my firmware version, but might be not a good idea for voltage adjustments anyway). An advantage for some applications is that all three channels of the SPD3303D are isolated. The DP832 has just two fully isolated channels, the GND of channel 3 is shared with GND of channel 2. But on the SPD3303D there is no display for the current for channel 3, just a LED for overload. |
| Siglent:
--- Quote from: g0hjq on November 09, 2014, 04:58:27 pm ---Thanks for the review Frank, I've just received my SDP3303D, which cost a 240 GB Pounds from Barsoom.eu on Amazon. Surprisingly it was sent by DHL direct from China, and arrived in 5 days. From what I've seen so far, it looks like a nice power supply - reasonably compact, easy to use, 3 isolated outputs, very quiet, and the problems with glitches on Channel 3 seem to have been fixed. NewFile1.png shows channel 3 (top) and 1 (bottom) at power on from cold with no load. Output 3 spikes at up to 1.7 volts, then drops down to about one volt. I can't imagine this causing problems with the 3.3 or 5v logic loads it's obviously intended for. NewFile2.png shows channels 3 (top) and 1 (bottom) when the outputs are switch on. NewFile3.png shows channel 3 recovering from a short circuit. Removing a 2 amp load causes just a few tens of milivolts ripple before setting down. The LCD display is gorgeous - very clear and easy to read, but I'm not really sure it's worth the extra cost over the SPD3303C with the LED display. Gary. --- End quote --- Dear Gary, thank you very much for the review, SPD3303D is better than SPD3303C. not only for the screen, but also for the programming function. more information here.http://siglent.blog.com/2013/05/16/use-siglent-programmable-dc-power-supply-to-complete-a-variety-of-test-solutions/ |
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