AIM-TTi has launched a four chanel power supply for the laboratory that uses mixed mode regulation to provide up to 420W of power.
The MX100Q differs from most other multi-output power supplies by offering full capabilities on all outputs. When higher power is required, up to two outputs can be disabled to provide twice the power from one or two outputs - up to 210W. Combining a switch-mode architecture with linear final stage regulation gives performance characteristics resembling a totally linear design but at greatly reduced weight. Each output can provide 0 to 35 volts at 0 to 3 amps, with output combination abilities that extend output voltages up to 70V and currents up to 6A.
All the outputs are completely independent and isolated, but it is possible to configure the power supply so that the voltage on an output automatically tracks the voltage on another output. As the outputs are isolated, tracking can be used to set equal voltage of the same polarity or opposite polarities. It can be particularly useful when outputs have been wired in parallel or series where control can be made by adjusting a single output voltage.
A key capability is synchronous on/off switching and programmable on/off sequencing. Many circuits can be damaged if one voltage rail is present without the other, or if voltage rails are not applied in the correct order. In addition to the individual output on/off buttons there are further controls for Multi-On and Multi-Off . By default these turn all of the outputs on or off simultaneously. They can also be set to operate any combination of outputs in a user defined sequence with delays between 10 milliseconds and 20 seconds. An illuminated front panel key locks out the keypad to guard against accidental setting.