Triple Output Bench-top power supply - Any requests?

I have two preferred bench power supplies:

AimTTi QL564TP, Linear supply, 2 main outputs, switchable ranges 0-25V, 4A and 0-56V, 2A, full LAN control.

Used almost all the time, there are few days when it isn't switched on.

AimTTi MX180TP 

also with full LAN control

Used less often but good when higher power is needed.

Both of these supplies are quite easy to use under manual control and easy to programme via Ethernet or serial port.

The metering (especially on the QL564) is quite accurate. The ergonomics could be  a little better on both supplies  - a rotary control per channel would be good and the QL564 would benefit from a better display.

I have other supplies (many) for more specialised things.

When you say high performance I wonder what you actually mean - putting everything in one box would be possible but absurdly expensive. 

Perhaps you could explain the idea behind your project.

Just for fun this is what I would like:

+/-60V @ 10A full 4 quadrant operation , noise less than 0.5mV p-p 20MHz bandwidth, settling time < 100us, constant voltage, current and power modes, full LAN control, analogue modulation supported, 6.5 digit metering, 2U 19" format. Built in battery emulation mode. 3 identical channels fully isolated from each other, simultaneous 6 channel current/voltage metering at > 10ks/s

(Effectively 3 high power source meters in one box)

Price under £10k 

MK

Thank you so much! a few questions:

1. why would you want the analog modulation?

2. would a 200W source, 20W sink will be good enough as a 2 quadrant or 20W is too little?

3. Would you wish for an arbitrary waveform generator? if Yes what kind of specs would be necessary (what bandwidth for example?)

As is common with questions such as yours I find that replies (including mine) focus on the current project. One of my current projects is a switching supply for precision motor control  - its a buck regulator designed for very high efficiency and fast dynamic control of the output voltage.

It works with anything from 10 - 60V input and may draw up to 10A from its supply, it is capable of 8.5 to 60V outputs at 6A (8A for short periods). The efficiency is between 90 and 96% for any combination of input and load above 0.5A. It has built in pull down for fast output voltage change with low or zero load.

Now you can see the form of my PSU requirement - currently I'm using the AimTTi MX180 for the supply but it cant provide enough current at 60V. I'm using a Rigol DL3031A electronic load and a Keysight DAQ970A for data acquisition with a custom interconnecting box for current measurement.

It's all controlled by a PC via Ethernet. 

If I want to test at full input power I have to use a brute of a supply which has only manual or analogue control and can do 100V @ 28A.

I want  a load which can simulate a motor type load and feed power back into the supply.

A typical source meter can do all this but only at low power.

Analogue modulation allows you to connect an existing programmable waveform generator.  A built in one would be fine but all to often these are poor second cousins to a decent signal generator. (You need triggering, slew rate control etc).

A single box solution to this problem would great, but unlikely. I think Keysight can do it (just about) with multiple boxes but very expensive.

So in the end I'll do the motor load testing with a motor !

Could you explain you project a little - is it commerical, marketing, fun or something else.

MK

As is common with questions such as yours I find that replies (including mine) focus on the current project. One of my current projects is a switching supply for precision motor control  - its a buck regulator designed for very high efficiency and fast dynamic control of the output voltage.

It works with anything from 10 - 60V input and may draw up to 10A from its supply, it is capable of 8.5 to 60V outputs at 6A (8A for short periods). The efficiency is between 90 and 96% for any combination of input and load above 0.5A. It has built in pull down for fast output voltage change with low or zero load.

Now you can see the form of my PSU requirement - currently I'm using the AimTTi MX180 for the supply but it cant provide enough current at 60V. I'm using a Rigol DL3031A electronic load and a Keysight DAQ970A for data acquisition with a custom interconnecting box for current measurement.

It's all controlled by a PC via Ethernet. 

If I want to test at full input power I have to use a brute of a supply which has only manual or analogue control and can do 100V @ 28A.

I want  a load which can simulate a motor type load and feed power back into the supply.

A typical source meter can do all this but only at low power.

Analogue modulation allows you to connect an existing programmable waveform generator.  A built in one would be fine but all to often these are poor second cousins to a decent signal generator. (You need triggering, slew rate control etc).

A single box solution to this problem would great, but unlikely. I think Keysight can do it (just about) with multiple boxes but very expensive.

So in the end I'll do the motor load testing with a motor !

Could you explain you project a little - is it commerical, marketing, fun or something else.

MK