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4 votes
1 answer
6k views

How do I choose an optocoupler for (19200 baud) serial communication between Arduino and RS422 transceiver?

4 votes
2 answers
3k views

Which surface finish for edge connector plating to increase number of mating cycles with sliding spring contact?

4 votes
2 answers
434 views

How to pick a capacitor to adjust loop compensation caused by reactive load?

2 votes
0 answers
71 views

Which capacitor in series with resistor circuit to reduce remanence effects of transformer?

2 votes
1 answer
54 views

How does a solar cell its relative thermal coefficient "alpha" expressed in 1/K relate to %/K?

2 votes
0 answers
106 views

Is a 90V output spike normal for a 45V buck boost converter?

2 votes
1 answer
12k views

What is the charge-discharge watt hour (Wh) efficiency for lead acid batteries at different SoC and charge current 10-35A/100Ah C10?

2 votes
1 answer
212 views

What is the effect of pulsed discharge on watt hour (Wh) efficiency of lead-acid batteries?

2 votes
1 answer
2k views

Solar panel strings: when does current flow via bypass diodes where each panel has a different maximum power point?

2 votes
2 answers
365 views

Can a planar transformer replace a laminated transformer for 50Hz AC conversion?

1 vote
1 answer
38 views

How to use a power meter to measure irradiance?

0 votes
0 answers
36 views

What is the failure rate for PV string blocking diodes?

0 votes
2 answers
72 views

What is the typical current draw of a battery powered smoke detector? [closed]

0 votes
1 answer
413 views

Real world efficiency of a LM3150 Webench DC power supply design?

0 votes
3 answers
946 views

Which low pass frequency filter to configure to measure/calculate DC-DC converter efficiency?

0 votes
1 answer
195 views

How to calculate 50Hz active power measurement accuracy from datasheet?

0 votes
0 answers
383 views

Why does this buck boost with dual MOSFETs fails output at certain input voltages at light load?