| Summary: | 碩士 === 國立成功大學 === 電機工程學系碩博士班 === 92 === With the advent of inverter-controlled method, the frequency control of supplying power is being widely adopted and investigated for home appliances nowadays. In this thesis, this concept is also employed for the design and implementation of a chip such that the source frequency of supplying power can be easily controlled.
By use of the design paradigm of system-on-a-chip, the product completed in this thesis has included the microprocessor, digital circuit, and analog circuit within a single chip. In this way of design, the number of wires between the circuits can be largely reduced, while the operation stability can be well maintained and the investment cost can be saved.
This inverter-controlled chip has utilized an 8-bit microprocessor as its core, and its control setting can be easily made through the keyboard input port. A liquid crystal display (LCD) panel is also given as the need of display output. The control system of this proposed scheme consists of PI controllers as well as 8-bit analog-to-digital converters. Inside the chip, the pulse-width-modulation signal generator be implemented such that the control signal can be properly generated in order to drive the circuit to adjust the source frequency to the need. To validate the effectiveness of this proposed approach, the software simulation and experimental tests are both made for the designated chip. Test results help confirm the method for the application considered, where the outcome can be also served as a useful reference for the design and implementation.
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