The Internet of Things (IoT) system needs to be built through a large number of sensors to capture device data. The upper platform is analyzed through transmission. The layer computing in the system requires a certain amount of power consumption. IT giants have pointed out before. Nowadays, the global power supply will not be able to respond to the power required by the Internet of Things after the Internet of Things is popularized. After the Internet of Things and AI are combined, whether it is the upper-level cloud platform or the underlying device with edge computing capabilities, Power demand will only be higher, so in addition to performance considerations, power management will be the design focus of the AIOT system.
Zhang Rencheng, an application engineer at Vicor, pointed out that "the application of low-noise high-integration power supply in embedded AIOT" pointed out that the development of AIOT is mainly in the vertical field, and equipment suppliers must design special applications for specific applications. For example, the company's products are currently focused on the four major industries of aerospace military, communications, servo computing, and industrial. In addition, they are also optimistic about the potential of the automotive market, and the power management products required for these vertical markets. Specifications are special, such as wide input range and high output voltage, high efficiency, power density, small size, light weight, low EMI, etc. These characteristics are very different from general consumer products, so it is necessary to have experienced manufacturers. Can be competent.
Zhang Rencheng said that the underlying devices of the Internet of Things are built in all corners of the application domain, and their size must be miniaturized. The components in the device must perform at the highest performance in a limited space, and they cannot interfere with each other, but in all electronic components. Power supply and RF are the easiest to have this problem. In this situation, power supply manufacturers must propose low noise and high integration to solve system problems.
Zhang Rencheng pointed out that the top technology of the US business in the power field is for the Internet of Things design. This technology includes three architectures: the zero voltage switching regulator (ZVS Regulator) is mainly a non-isolated DC-DC regulator, products Pre-regulator module (PRM), and Cool-Power ZVS boost, buck, and buck-boost regulators; dual-clamp zero-voltage switching is an isolated DC-DC or AC-DC converter; The Wave Amplitude Converter (SAC) is an isolated, fixed-ratio DC-DC transformer with a main line converter module (BCM), an intermediate main line converter (IBC), and a voltage converter module (VTM).
In addition, the past power supply design will integrate the regulation and conversion functions in the same design, but for high-order applications, this method will result in line power loss, and each voltage rail must have independent complete adjustment and conversion design. This makes it difficult to reduce costs. Vicor can solve the problem with the Factorized Power architecture. The Factorized Power PRM (Pre-Regulator Module) can handle the pre-voltage regulation function with a high-performance zero-voltage switching topology. The component is a VTM (Voltage Conversion Module) that uses the sine wave amplitude conversion topology to convert the voltage adjusted in the previous stage to the voltage required by the CPU.
Zhang Rencheng said that the power supply is the only driving energy of all electronic devices, and its design has a great impact on the system. Therefore, he suggested that the power supply manufacturers must be carefully selected to make the system run more stable and efficient.
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