Free Simple Circuit Diagram
Generating sawtooth wave signal can be implemented using several ways, and one of the very popular method is by using constant current source to charge a capacitor. If you’ve seen many method that use an SCR or its bipolar transistor equivalent circuit to discharge the capacitor, here you can see an alternative method using 555 IC. Here is the schematic […]
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To generate 50% active factor (duty cycle) using 555 IC, we can use two diodes to separate the charging and the discharging path. With no diodes, we can also generate 50% duty cycle using 555 IC by configuring the circuit as shown in the schematic diagram. The high state period is similar to regular configuration, t1 = 0.693 RA C, […]
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Function generator ranging from 0.1 Hz to 20 MHz can be easily built using MAX038 integrated circuit chip. Here is the most simple implementation of high frequency sine wave generator, and you can easily modify it to generate square wave, or triangle waveform. Here is the schematic diagram of the circuit: In the schematic diagram, you can see A0 (pin […]
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Sawtooth signal is used in many application, such as in PMW modulator or oscilloscope sweep circuitry. This sawtooth wave generator gives not only the sweep signal at out 1, but also a synchronization output at out 2 when the sawtooth fly back and begin sweeping. The frequency formula of this sawtooth wave signal is: f=R3/(2CR4(R1+R2)) Remember that the real frequency […]
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