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Theory and Applications of Piezo Actuators and PZT
Theory and Applications of Piezo Actuators and PZT

... As stated above, piezoelectric materials can be used to convert electrical energy into mechanical energy and vice versa. For nanopositioning, the precise motion which results when an electric field is applied to a piezoelectric material is of great value. Actuators using this effect first became ava ...
Breakers, Relays, and Disconnects
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... Power plant and industrial systems need overcurrent delay relays to allow for starting large loads. When a large induction motor starts, it draws a starting current that is several times larger than its normal running current. This starting current persists until the motor is up to its normal runni ...
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... CCG1 is Cypress’s first-generation Type-C and PD controller, which supports up to two USB ports with PD. CCG1 has 32 KB flash and 4 KB SRAM memory. CCG1 is a fixed-function part and the functionality is implemented in the CCG1 device’s firmware. CCG1 provides a USB Type-C and Power Delivery solution ...
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Breakers, Relays, and Disconnects
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... Rambus TDR Measurements – Channel Timing and Voltage Requirements – The Rambus 800Mbps data transfer rate requires timing margins to be maintained with high degree of accuracy. – Rambus signals use low voltage swings of 0.8V. – Signal reflections caused by impedance discontinuities reduce timing an ...
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Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
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