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Phase Locked Loop Based Integer N Frequency Synthesizer - Bog af Jyoti P Patra & Umesh C Pati - Paperback

Phase Locked Loop Based Integer N Frequency Synthesizer - Bog af Jyoti P Patra & Umesh C Pati - Paperback

The present work describes about a phase locked loop (PLL) based integer n frequency synthesizer for unlicensed national information infrastructure (UNII) lower band. It covers a frequency range of 5.15 - 5.25 GHz which is used by IEEE 802.11a. For simplification of design, the channel spacing of the frequency synthesizer is taken to be 5 MHz. The frequency synthesizer consists of a phase frequency detector (PFD), a charge pump (CP), a second order loop filter (LP), a voltage controlled oscillator..

DKK 338.95
2

A Novel Synchronization Scheme For Distributed Power Generation - Bog af Srikanth Sambu - Paperback

A Novel Synchronization Scheme For Distributed Power Generation - Bog af Srikanth Sambu - Paperback

An approach to model the current-source-inverter-fed induction motor drive is presented. The mathematical model takes into account the rectifier, inverter, and induction motor dynamics and is established in the stationary reference frame. For controlling the drive speed, a modified indirect field-oriented control is proposed. To counter the effects of torque pulsations at very low speeds and the rotor resistance variation, a slip angle compensation loop is included in the control law formulation...

DKK 338.95
2

Walking Ro-Bot: - Bog af Anand S Relkar - Paperback

Walking Ro-Bot: - Bog af Anand S Relkar - Paperback

On uneven ground, legged robots have the potential to be a walking machine. Theo Jansen's mechanism, which consists of eleven bar linkages, reproduces a smooth walking pattern known as gait. Parallel motions are commonly used in heavy machinery and have recently been highlighted in a biological motion model. Due to the singularity problem, the close-loop connection just gives a designed end- effector's trajectory, which is believed to be less changeable. The singularity on the modified Theo Jansen..

DKK 369.95
2