LED lighting: basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also involved in the LED lighting business. LED power circuits require driver ICs, and many semiconductor manufacturers have introduced a variety of products. Under the situation that manufacturers compete to improve the drive capability and efficiency of driver ICs and achieve more functions, National Semiconductor not only makes these features available, but also reduces the difficulty of power circuit design.
Using the company's online design aid "WEBENCH" developed for power supply circuits, etc., the basic circuit design including the selection of the driver mode, the selection of the driver IC, the circuit design and the circuit simulation can be completed in one day (Fig. 8, Figure 9). The driver IC can only use the company's products, but LEDs, capacitors and inductors can be selected from a variety of products from major manufacturers. WEBENCH can be used free of charge. If most equipment developers use this tool for circuit design, it will help the national semiconductor production of driver ICs to expand applications.
Figure 8: LED lighting products are designed to be easier
This figure shows the flow of LED lighting product design using the design aid "WEBENCH" developed by National Semiconductor. Design and simulation work can be completed in a single day. The selection of components and drive methods represented by LEDs, the selection of driver ICs, and the circuit design can all be performed online, and the simulation of electrical characteristics and thermal characteristics can also be performed online.
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