Tougher supply chain rules are changing how materials are tracked and verified on site. Find out what construction crews need ...

With the development of smart grid, more and more intelligent instruments are used. This paper firstly summarizes the situation of power supply for online monitoring instruments. Consideration for ...

Series-parallel-form switch-linear hybrid envelope tracking power supply is composed of a voltage-controlled linear amplifier (VLA), a voltage-controlled switched-mode converter (VSC) and a ...