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I would guess it will work fine, but to be safe you could add one or two silicon diodes in series for the monitor supply, to drop either 0.6V or 1.2V from the main 20V supply. Just ensure they are ra …

You will probably want/need to recheck your EMC compliance, as I've seen different PSUs generate radically different levels of noise, and depending on your equipment design this may well impact emissi …

In the absence of a battery, you need to dump the regenerated power in a braking resistor. Many controllers have an output signal indicating when regeneration is occuring, and this can be used to driv …

Achieving Current Balance between two PSUs The key question is how you control the voltage output of the two supplies in a way which causes them to share the load equally. There are two main ways to d …

Each half cycle the transformer effectively has to store the energy to be transferred ina magnetic field. Increasing the frequency means more transfers, each with less energy. Thus the peak energy s …

The PSU will be good for almost 50A. If you want to protect the smaller wires from short-circuit damage, you should probably use a fuse block for distribution. Given the voltage range, the are multipl …

Slightly left-field, but you could add two electrolysis cells in series, which would give roughly 6V on each cell, with no change to PSU. This might be good enough for you, with the extra overvoltage …

This is often done by "2 wire" PIR or light controllers, but it has a two potentially significant issues. Firstly the switched load has to let through the low current when "off" This works with tungst …

A small isolating DC-DC converter module, with 36V-72V input range, and 5V 1A output is the easiest approach. -48V to negative input, 0V to positive input. Then connect the 0V output to 0V input, and …

It would be useful to know the power levels in question, and whether this for a one-off unit, or for commercial production. If it is for commercial use, you will almost certainly need features such as …

The first diagram shows a PME system, not TN-S as you have multiple E-N links. For a system to be TN-S there must be just a single link. The issue is that in the event of a break in the N wire, return …

There are options to float the scope by using an isolation transformer, and disconnect the earth, however this carries a shock risk The better option is to use two probes and the A-B maths function to …

The importance of +48V vs -48V in the telco context is entirely related to the complete solution deployment. The whole idea of -48V comes from the +ve terminals on the battery banks being grounded to …

The key things you need to understand are: Whether the PSUs are internally isolated or grounded If isolated, whether there are any AC coupled transients from the mains side (many isolated SMPSs, have …

If you supply the PSU to the customer, and the customer needs UL listing, then either the PSU needs its own UL listing, or it has to be certified under the overall system banner. The former approach i …