Rohde & Schwarz HMP4030 Three-Channel Power Supply

The R&S HMP power supplies are primarily designed for industrial use. With two, three or four output channels and up to 10 A output current per channel, these rugged instruments are ideal for a wide variety of applications. They offer high efficiency with low residual ripple and many protection functions.

The R&S HMP power supply family consists of four models. The R&S HMP2020 two-channel power supply and the R&S HMP2030 three-channel power supply deliver up to 188 W total output power, the three-channel R&S HMP4030 and the four-channel R&S HMP4040 offer a maximum output power of 384 W. The total load can be distributed as desired over the separate channels. Depending on the model, up to 80 W or 160 W of channel power is available - in any voltage/current distribution.

Up to four galvanically isolated, floating output channels with overload and short-circuit protection are available, depending on the instrument type. The channels can be connected in series or parallel to obtain higher voltages or currents. The R&SHMP4040, for example, offers a maximum voltage of 128 V or a maximum current of 40 A.

All basic functions of the R&S HMP power supplies are directly accessible on the front panel. The rotary knob plays a key role. It is used to set the voltage, current and limit values for the various protection functions.

The channel keys light up in different colors to indicate the operating conditions of the channels. All channels can be simultaneously switched on or off with the “Output” key, which lights up white when it is "on". Active outputs light up green in constant voltage mode and red in constant current mode.

The R&S HMP power supplies offer a variety of protection functions to prevent damage to the instrument and the DUT. You can separately set the maximum current (electronic fuse, overcurrent protection/OCP) or the maximum voltage (overvoltage protection/OVP) for each channel. The output channels switch off when either of their set limits is reached. Overtemperature protection (OTP) prevents the instrument from overheating.

In industrial applications, power supplies are often installed in 19-inch racks. The R&S HZ42 and R&S HZP91 rack adapters are available for this purpose. Additional connections for all channels (including sense lines) are provided on the rear panel to simplify use in system cabinets.

The R&S HMP power supplies are equipped with a dual USB/LAN interface as standard. This interface can optionally be replaced by a dual RS-232/USB interface or a GPIB (IEEE488) interface.