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Electronics Symentics

Square Wave Generators - Oscillators

10 Hz to 10 Khz VCO With Square and Triangle Wave
Convert periodic waveforms to square waves:  08/16/2001 EDN - Design Ideas /  Converting periodic waveforms to square waves is an integral part of extracting a clock signal from data, creating waveform generators, and making timing-pulse generators. Any square-wave-conversion circuit is more valuable when the square wave's duty cycle is variable and controllable. Figure 1 shows a circuit that has these attributes and can drive several TTL-compatible loads..
FleaPower Oscillator Consumes only 1 µA:  05/21/98 EDN-Design Ideas
Gated Oscillator Emulates a Flip Flop:  03/16/95 EDN-Design Ideas
Harmonic oscillator
Oscillator turns on Instantly, off Synchronously:  05/23/96 EDN-Design Ideas  
Square wave modulator has variable frequency and pulse width:  08/08/2002  EDN - Design Ideas / A few years ago, I worked at a disk-drive company. We had a plating facility that required square waves to drive the high-voltage plating operation. The challenge was that the square wave's pulse width had to be variable, along with the duty cycle. Also, the amplitude of the pulses had to be adjustable..
Square Wave Oscillator #1
Square Wave oscillator #2
SwOpAmp Makes Square Wave Generator:  02/15/96 EDN-Design Ideas
Tiny Programmable Oscillator Operates From 5 kHz To 20 MHz:  08/06/01 Electronic Design - Ideas for Design /  By merging a digital potentiometer with an oscillator chip, a very small programmable oscillator (1 µMAX and one SOT-23 package) can be realized. In addition to consuming very little board space, the circuit requires only three signals from a. .

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