News

• Routines directly measure microcontroller-bus clock 1/12/2007

  The Freescale HC08 and newer HCS08 microcontroller families have versatile peripheral modules. Their clock generators are no exceptions. They range from the internal clock, which frees I/O pins, to external crystals or ....

  Autozeroed amplifier with halved noise needs few components 1/12/2007

  The Analog Devices (www.analog.com) AD8553 autozeroed instrumentation amplifier has a unique architecture in that its two gain-setting resistors have no common junction (Reference ....

  Use a TL431 shunt regulator to limit high ac input voltage 1/12/2007

  Most isolated, offline SMPSs (switched-mode power supplies), including flyback, forward, and resonant, must operate at input voltages of 90 to 260V rms. Some cases even use line-to-line voltages of 400V rms±10%, ....

  THE GADGET FREAK FILES CASE #2: Hans knows the truth is out there - It just needs someone to find it 1/11/2007

  Hans knows the truth is out there - It just needs someone to find it That’s why he built a simple and tiny receiver capable of detecting QRSS (extreme-slowspeed ....

  Circuits protect outputs against overvoltage 1/11/2007

  In test-and-measurement applications, you must provide overvoltage protection for the output terminals of amplifiers, power supplies, and similar components. The conventional way to accomplish this task is to add series resistors ....

  Integrator ramps up/down, holds output level 1/11/2007

  Op-amp integrators can ramp to saturation, and a capacitor- discharge switch can reset them. Alternatively, you can input-switch them to ramp up and down in triangle- waveform-generator applications. Much searching through online ....

  CPLD connects two instruments with half-duty-cycle generator 1/11/2007

  When synchronizing the signals of two instruments, one must make sure that the receiver can latch the sender’s synchronous signal. For example, a pulse generator generates synchronizing pulses while generating the main pulse signal. ....

  Single op amp achieves doublehysteresis- transfer characteristic 1/11/2007

  In process-control applications requiring discontinuous controllers, the most elementary choice is a two-position-mode or on/off controller. A typical example of such a controller is a space heater. If the temperature drops below ....

  Plastic fibre re-tooled as standard for consumer applications 12/10/2007

  Molex has announced a new low-cost plastic optical fibre data link based on the Molex small media interconnect ‘SMI’. As a complete duplex POF solution, the SMI connector and transceiver interconnect ....

  13-GHz scope for serial data testing 11/10/2007

  Comprising a serial data analyser (SDA13000), active differential probe (D13000PS), plus suite of debug and analysis tools, LeCroy's latest offering for testing high-speed serial data buses has a bandwidth ....

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