DC1822A

DC1822A is a versatile evaluation board for off-line switching power supplies. It is designed to enable the fast and easy evaluation of several fixed frequency, current mode, off-line power supply controllers. It covers a wide range of conventional architecture, cascade converters and enhanced mode power supply solutions.

This evaluation board employs a low component count, off-line power supply control technique and is suitable for applications like home appliances, telecom equipments, battery-powered systems, consumer electronics, office machines and industrial electronic control applications.

The DC1822A is designed with safety in mind. To minimize risks of electrocution, it is equipped with a dead front design. The operating temperature range allows operation over all normal ambient temperatures.

The DC1822A provides the most accurate and comprehensive evaluation of fixed frequency, current mode power supplies. This includes all aspects of the power supply, from the input EMI filter design to the output EMI filter design.

The evaluation board is equipped with an extensive set of measurement tools to ensure that all aspects of the power supply design are accurately evaluated. These tools include a comprehensive set of DC waveforms, an oscilloscope, a frequency counter, and a multimeter.

The evaluation board employs the latest technology to provide maximum performance in terms of efficiency, noise, and standby mode current. It is able to sample input and output power stages, measure transient load current response and adjust the optimum operating set points.

The most important feature of the DC1822A is the ability to monitor the current control loop of the power supply. This measurement can be used to verify the correct operation of the current control loop and verify the maximum power handling capability of the control loop.

The evaluation board also provides an on-board DC/DC step-down converter. This converter is designed to reduce the power supply’s output voltage to an industry-standard 3.3V level. The converter can be used to perform additional circuit testing or to interface with external devices.

The DC1822A includes a comprehensive set of control parameters to ensure the best possible performance of the power supply. These parameters can be adjusted directly from the evaluation board and can also be modified remotely through an I²C interface.

The evaluation board is designed to allow the user to use low-cost components to build custom power supplies for specific applications. The board includes a wide variety of components, such as various transistor packages, rectifiers, snubbers, and MOSFETs, to allow the user to maximize the performance of the power supply without increasing the component count.

In conclusion, the DC1822A evaluation board simplifies the process of designing, evaluating, and testing off-line switching power supplies. It offers complete control over the power supply design and an extensive set of measurement tools for more detailed analysis. In addition, it allows the user to customize the power supply for specific applications using low-cost components.