DC324A

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DC324A is a multi-output closed- and open-loop, AC/DC, and DC/DC switching mode power supplies (SMPSs) evaluation board developed by American Power Conversion (APC) and marketed by Vital Solutions.The DC324A board is specifically designed to provide multi-output power solutions to various industrial applications. It is targeted to use in test and measurement laboratories, prototyping systems, and in-circuit or in-box product evaluation where high power supply accuracy and repeatability is required.The main features of the DC324A board are its four high-quality, 10-W switching mode power supply (SMPS) converters, two closed loop and two open loop, a comprehensive power system with programmable adaptive overload protection, easy-to-use GUI-based digital monitoring and control, and an adjustable current limit. DC324A evaluation board can provide up to ±2/2.5V, +3.3V and +5V outputs and adjustable outputs from 0V to 16V. This board is also equipped with an on-board 100Ω current sensing resistor to monitor the current and an optional USB or RS232 interface for programming, monitoring, and controlling. The primary application fields of the DC324A board are system power, regulated power, high-precision voltage/current control, communication systems, and automotive applications. The board can also be used for test and measurement, prototyping systems, and in-circuit or in-box product evaluation.The DC324A can operate from any line voltage in the range of 90V to 264VAC, but an optional 2.5V to 7.5V boost converter can provide the power to the board while allowing the system to work in AC/DC converter mode. The on-board buck-boost controller allows the board to operate in both open-loop (UL) and closed-loop (NMV) operation modes, providing more flexibility for users. The DC324A also offers advanced power supply solutions such as active current sharing, low noise per channel, 1% precision regulation accuracy, and 150% of rated output power for an hour or 10% for 10 minutes.In addition, the DC324A incorporates advanced control algorithms for pulse-width-modulation (PWM) and peak current-mode control to achieve better performance and reliability. In order to provide better current sharing capability, the board implements a peak current-mode control technique. In conclusion, the DC324A is an ideal solution for designing power solutions that require small footprint and high efficiency, while ensuring a high level of accuracy and repeatability. The board can deliver a wide range of current and voltage outputs, and provides programmable adaptive overload protection and an adjustable current limit. Moreover, the board has flexible control modes including PWM and peak current-mode control, and a diagnostic window to check system performance.

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