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What is switched capacitor network?
Switched-capacitor (SC) networks comprise capacitors interconnected by an array of periodically operated switches. Such networks are particularly attractive in light of the high circuit density possible with MOS integrated circuit technology and hybrid integrated circuits using thin-film and silicon technology.
What is switched inductor?
Switched-Capacitor/Switched-Inductor Structures for Getting Transformerless Hybrid DC–DC PWM Converters. When the active switch of the converter is on, the inductors in the L-switching blocks are charged in series or the capacitors in the C-switching blocks are discharged in parallel.
What is switched-capacitor resistor?
The Switched Capacitor resistor is often used as a replacement for simple resistors in integrated circuits because it is easier to fabricate reliably with a wide range of values. It also has the benefit that the equivalent resistor value can be adjusted by changing the switching frequency.
How does switched capacitor work?
A switched capacitor (SC) is an electronic circuit element implementing a filter. It works by moving charges into and out of capacitors when switches are opened and closed. Usually, non-overlapping signals are used to control the switches, so that not all switches are closed simultaneously.
What are the switches in a switched capacitor circuit?
The switched capacitor resistor: The most simple switched capacitor circuit is shown in figure 1, the switched capacitor resistor. It consists of one capacitor C 1 and two switches S 1 and S 2 which connect the capacitor alternately to the input, VIN and the output, VOUT.
How many Ma can a switched capacitor converter generate?
A simple IC switched capacitor implementation Simple switched capacitor converters such as the MAX660 can generate 100 mA at 3.3 V when powered from a two-cell battery of alkaline, NiCd, or NiMH cells or a single primary lithium cell.
How is internal regulation achieved in switched capacitor converter chips?
Internal regulation in monolithic switched capacitor converter chips is achieved either as linear regulation or as charge pump modulation. Linear regulation offers low output noise. Charge pump modulation controls the switch resistance and offers more output current for a given cost or size because of the absence of a series-pass resistor.
Why are switched capacitor converters used in laptops?
The usage of switched capacitor converters in laptop computers and small handheld communication devices is increasing as their output current capabilities are increasing and the supply current required by the portable devices is decreasing. Figure 1-27. A simple IC switched capacitor implementation