High-Voltage Programmable DC Power Supplies for 600-V to 1000-V Applications

Certain applications call for DC voltages that are much higher than the typical 12V, 24V, and 48V seen in industrial battery-powered designs and intermediate bus architectures, or the standard 5V and lower used in board-level point-of-load implementations. For high voltage applications in the 600V to 1000V range, such as motor inverters and solar arrays, there are programmable DC power supplies from veteran power supply manufacturers, TDK-Lambda and B&K Precision, which are suitable for both the bench-top during product design and development, as well as rack mount ATE systems during QC and burn-in testing and during production. These power supplies (Table 1) all provide high, reliable power with low noise and excellent regulation and can be controlled from the front panel or remotely through a number of interface options.

Figure 1: The TDK-Lambda Z+ Programmable Power Supply is available as a bench top or rack mount with output to 650V, and features built-in USB, RS-232 & RS-485 interfaces.

Output Power Expansion

Many of the models are capable of connecting to another model of the same kind in series to increase the voltage output or in parallel to increase the current output. For example, up to four models of the B&K Precision PVS60085 can be connected in parallel and operated in master/slave mode to provide up to 20.4kW of combined output power.

Figure 2: B&K Precision PVS Series High Power Programmable Power Supplies provide many useful features such as high programming resolution, multiple remote interfaces for test systems, and a built-in SAS (solar array simulator) function to generate PV (photovoltaic) I-V curves.

Multi-Range

The multi-range feature of the PVS60085MR allows flexible and efficient configuration of voltage and current within the rated voltage and current range, since the instrument automatically recalculates voltage and current limits for each setting.

Two-in-One

The dual range feature of the 9185 gives users the ability to select between higher current capability at a lower voltage range (up to 400V and 500mA) or higher voltage capability at a lower current range (up to 600V and 350mA). This allows more applications to be addressed by a single supply.

Table 1: Single-Output High-Voltage Programmable DC Power Supplies

These high voltage power supplies are an exciting addition to Mouser's broad and growing portfolio of products to aid engineers from product development to production. With products available from over 600 suppliers today, be sure to look to Mouser when you start your next project.

Landa Culbertson writes from Dallas, TX. She holds a BSEE, and has 18 years experience in the electronics industry, from tech startups to Fortune 500 companies.