LM317T Voltage Regulator with Pass Transistor

The RGi-AWC-1 (Advanced Wireless Controller) is a 6.2in x 5in (15.75cm x 12.75cm) dual CPU board that embodies a complete robotics control system and development platform. It communicates via wireless 802.11b/g WiFi or 802.15.4 ZigBee communications standards. The internal resources include the following: ------------------------------------------------------------ • A 10-channel R/C servo controller with 180-degree range (500µs to 2.5ms pulse) and automatic internal/external power switchover. • A dual high-efficiency motor controller with a capacity of 45A per motor, precision current sensing and limiting, and programmable motor soft start. • 13 analog inputs with input protection, filters and 10-bits of resolution. • A 32 channel Dynamixel AX/DX servo controller with 300-degree range, 1024 steps, and programmable rpm, torque and offsets. • A powerful 15A PWM output with 255 steps, capable of switching internal battery and external battery sources. • A unique power management system with programmable sleep times, inactivity timeout and direct sleep modes, switchable output power for webcam, motor and radio sections. • A high-efficiency, wide-input range, switching, step-down, voltage regulator that provides 6.0V at 3A. • A separate voltage regulator that provides 5.0V at 1A, with a powerful 25A switching FET for output power, used for remote power management of webcams, video cameras, etc. • An additional voltage regulator that provides 3.3V ad 1A, used for the radio ...



http://www.youtube.com/watch?v=2h0p6HYqs14&hl=en

www.uberpulse.com During my tour of duty at GDC, I've stopped today to see my friends at Intel. Dan, George and of course Sr. performance analyst Francois (pictured) were all at the booth to show off Skulltrail, Intel's fastest platform with two 8-cores processors and targeted for the "enthusiasts" community. "About a year and a half ago, I met with you with your camera, and we were showing an 8 cores machine running POVray, which was kind of a workstation board [...] What we did... We decided to do a platform based on the feedback and that's Skulltrail", said Francois Piednoel. During our conversation, Francois shrugged off the idea that Skulltrail is a workstation platform: it does not have the same reliability than a workstation and supports SLI and Crossfire, which is not a workstation feature. "Don't go and overclock things and touch the parameters of the machine and expect the reliability of a workstation. It's not going to happen. Those knobs are open... but we don't guarantee things when you get there... it's not a workstation just because of this... If you want to do workstation work you will plug a more robust, more OpenGL like graphic susbsystem. Voltage is also another key difference between Skulltrail and a workstation platform. "When you want to be able to overclock, we had to redesign the entire voltage regulator array. Right now you have 3 stages of voltage regulators on those [Skulltrail] boards. Workstations don't do this. They go for extremely sharp ...



http://www.youtube.com/watch?v=2W_79ZUyYWw&hl=en