Showing posts with label wave. Show all posts
Showing posts with label wave. Show all posts
Tuesday, November 18, 2014
Triangle Square Wave Generator Using Op Amp
The circuit shows a simple triangle and square wave generator with a common dual operational amplifier LM1558 to produce very low frequencies around 10 kHz. The time interval for one half cycle is about R * C and outs of supply of 10 mA. The amplitude of the triangle can be altered by adjusting the 47K and waveform offset can be eliminated by adding a capacitor in series with the output.
Wednesday, September 24, 2014
Triangular wave form Generator Circuit
A triangular waveform generator can Vi be made by using one amplifier of a LM3900N device as an integrator and another amplifier as a Schmitt trigger circuit.
A suitable circuit is shown, it has the unusual advantage that only the one power supply is required. When the output voltage from the Schmitt trigger circuit is low, the current flowing through Ra is integrated by C; to produce the negative slope of the triangular wave at output 1. When the output 2 voltage from the Schmitt trigger ls high, current flows through R; to produce the rising part of the waveform at output 1. The output waveform will have good symmetry if R1 = ZR;. The output frequency ls given bythe equation: f=V(+) - Vbe/2R1C1V Whel8 R1 = 2Rg, V35 ii the steady voltage at the inverting input (0.5 V) and V is the difference between the tripping points of the Schmitt trigger.
A suitable circuit is shown, it has the unusual advantage that only the one power supply is required. When the output voltage from the Schmitt trigger circuit is low, the current flowing through Ra is integrated by C; to produce the negative slope of the triangular wave at output 1. When the output 2 voltage from the Schmitt trigger ls high, current flows through R; to produce the rising part of the waveform at output 1. The output waveform will have good symmetry if R1 = ZR;. The output frequency ls given bythe equation: f=V(+) - Vbe/2R1C1V Whel8 R1 = 2Rg, V35 ii the steady voltage at the inverting input (0.5 V) and V is the difference between the tripping points of the Schmitt trigger.
Monday, September 8, 2014
Fifty Percent Wave Rectifier Wiring diagram Schematic
This is a simple Fifty Percent Wave Rectifier Circuit Diagram. This Fifty Percent Wave Rectifier Circuit Diagram provides for accurate half wave rectification of the incoming signal. For positive signals, the gain is 0; for negative signals, the gain is รข€” 1.
By reversing both diodes, the polarity can be inverted. This schema provides an accurate output, but the output impedance differs for the two input polarities and buffering may be needed. The output must slew through two diode drops when the input polarity reverses. The NE5535 device will work up to 10 kHz with less ttan 5% distortion.
Fifty Percent Wave Rectifier Circuit Diagram
Saturday, September 6, 2014
Precision full wave Rectifier Wiring diagram Schematic
The schema provides accurate full wave rectification. The output impedance is low for both input polarities, and the errors are small at all signal levels. Note that the output will not sink heavy current, except a small amount through the 10K resistors. Therefore, the load applied should be referenced to ground or a negative voltage. Reversal of all diode polarities will reverse the polarity of the output
Since the outputs of the amplifiers must slew through two diode drops when the input polarity changes, 741 type devices give 5% distortion at about 300 Hz.
Precision full wave Rectifier Circuit Diagram
Since the outputs of the amplifiers must slew through two diode drops when the input polarity changes, 741 type devices give 5% distortion at about 300 Hz.
Precision full wave Rectifier Circuit Diagram
Sourced By: http://diagramstream.blogspot.com/2013/07/precision-full-wave-rectifier-schema.html
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