Introduction to Rectifier Bridges and Dual Diodes:  MicroNote 303 from Microsem  (Circuit / schematic design added 6/06)

Introduction to Rectifiers:  MicroNote 301 from Microsem  (Circuit / schematic design added 6/06)

Introduction to Schottky Rectifiers:  MicroNote 401 from Microsem  (Circuit / schematic design added 6/06)

Method provides self timing for synchronous rectifiers:  05/16/02 EDN Design Ideas  /  (added 1/05)  Synchronous rectifiers are MOSFETs, driven in such a way as to perform a rectifying function. They often take the place of diodes in the output-rectification stage of switching power converters, because of their lower on-state power loss. In power circuits, synchronous rectifiers are often complicated to use because of timing issues....

OpAmp Rectifier Signals Input State:  07/21/94 EDN-Design Ideas / (added 6/03) The op-amp rectifier in Fig 1 operates from a single supply and provides a logic output and an LED that indicate the state of the input voltage. The input-state indications are handy for calibration. Because the circuit operates from a single supply, the 2.5V reference determines the level around which the circuit rectifies input waveforms.... 

Optimizing the Ultra-Fast POWERplanar Rectifier Diode for Switching Power Supplies:  National Semiconductor - Application Note   (Circuit / schematic design added 6/06)

Precision full wave signal rectifier needs no diodes:  09/1/05   EDN -- Design Ideas  /   (added 11/05)   Single-supply design uses two op amps.

Precision Rectifier is Glitch Free to 1 MHz:  05/12/94 EDN-Design Ideas / (Electronic Circuit diagram added 03/03) The manufacturer’s circuit for a precision, current-mode, full-wave rectifier (Fig 1a) converts a voltage signal to a current, eliminating errors arising from voltage drops across the rectifying diodes. However, just like op-amp-based rectifiers, the circuit in Fig 1a requires closely matched resistors.  The circuit in Fig 1b obviates the precision resistors by simply returning the diodes to the input. For a positive signal current, D1 is on, and the current flows into the load resistor to develop an output voltage.  When the input signal current is negative, D2 is on, passing current to the low-impedance.... 

Precision Rectifier Reduces Ripples:  03/03/97 EDN-Design Ideas / (Electronic Circuit diagram added 03/03)

Rectifier Reverse Switching Performance:  MicroNote 302 from Microsem  (Circuit / schematic design added 6/06)

SCR Voltage Regulator:  Though not as accurate as a linear or a high-frequency switching regulator, an SCR voltage regulator wastes little power and creates no RFI.  Designed by Andrew R. Morris  (added 09/05)

Silicon Controlled Rectifier Model Railroad Throttles and London Model Railroad Group SCR Throttle:  The following is a schematic drawing of a Silicon Controlled Rectifier type throttle for use on larger scale model railroads. Three versions of this throttle are shown on this page. They are not sophisticated designs but work well and are tough and reliable. (added 2/05)

Step Down Rectifier Makes a Simple DC Power Supply:  04/09/98 EDN-Design Ideas / (Circuit / schematic design added 6/06)   -- A simple and useful nonisolated rectifier features voltage step-down operation, acceptable Class A line-current harmonics, inherent short-circuit protection, and, optionally, a regulated output

Thermostat for 1KW Space Heater (SCR controlled):  Here is a simple thermostat circuit that can be used to control a relay and supply power to a small space heater through the relay contacts. The relay contacts should be rated above the current requirements for the heater. Temperature changes are detected by a (1.7K @ 70F) thermistor placed in series with a 5K potentiometer which produces about 50 millivolts per degree F at the input of the LM339 voltage comparator. The two 1K resistors connected to pin 7 set the reference voltage at half the supply voltage and the hysteresis range to about 3 degrees or 150 millivolts. The hysteresis range (temperature range where the relay engages and disengages) can be adjusted with the 10K resistor between pins 1 and 7. A higher value will narrow the range....   (Circuit / schematic design added 6/06)