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High level IC integration in power electronic circuits is increasingly important for new circuit designs. This integration is essential in order to decrease the components used which inherently increases the reliability and decreases the cost and size of an application. A functional description and fully characterized test results of a novel architecture called an Analog Power Manager (APM) integrated circuit is discussed. The IC integrates two 90V High-Side Drivers (HSD), two 2A drive Low-Side Drivers (LSD), three 20MHz bandwidth 90V dividers and two 90 V precision dividers together with a hysteretic Flyback controller with 90 V switch. The APM's functions are used for sensing, power management and MOSFET driving in PV applications. All three functions will be presented in this work.

This paper describes the design of a low power 1.8GHz fully integrated phase locked loop based frequency synthesizer. The synthesizer includes a conventional tri-state phase frequency detector, a fully differential charge pump, a 2nd-order on-chip loop filter, a voltage-controlled ring oscillator and an integer-N multi-modulus divider. The synthesizer is implemented in a 0.13μm CMOS process and consumes less than 3.5mW of power at a supply voltage of 1.2V. The entire synthesizer is designed using current mode logic and occupies an active area of 0.34mm2.