How to make an oscillator? How to make an oscillator

With two NAND gates, one resistor and one capacitor, you can make a square wave oscillator. The two NAND gates are strung together, the capacitor is connected to the head and tail of the two NAND gates, and the resistor is connected to the head and tail of the first NAND gate. Changing the resistance or capacitance can change the frequency. Try it.

Summary. How to make an oscillatorHello dear, I have helped you find the result.

There are many ways to make an oscillator, and here are the steps to make a simple oscillator:1Prepare a capacitor, a resistor, and a transistor.

2.Connect the capacitors and resistors in series and connect them to the base of the transistor, the collector of the transistor to the positive power supply, and the emitter to ground. 3.

Use a sharp pulse signal or a glass rod or other tool to gently touch the circuit to make it **. Such a circuit is capable of generating an oscillation signal, and the frequency of the oscillation can be adjusted by the magnitude of the capacitance and resistance. When the value of capacitance or resistance changes, the oscillation frequency also changes.

How to make an oscillatorHello dear, I have helped you find the result. There are many ways to make an oscillator, and here are the steps to make a simple oscillator

1.Prepare a capacitor, a resistor, and a transistor. 2.

Connect the capacitors and resistors in series and connect them to the base of the transistor, the collector of the transistor to the positive power supply, and the emitter to ground. 3.Use a sharp pulse signal or a glass rod or other tool to gently touch the circuit to make it **.

Such a circuit is capable of generating an oscillation signal, and the frequency of the oscillation can be adjusted by the magnitude of the capacitance and resistance. When the value of capacitance or resistance changes, the oscillation frequency will also change with the resistance.

An oscillator is an electronic device that generates a stable electrical signal and maintains the stability of this wave sock shape. The role of the oscillator is very extensive, and Changsen is used in the following aspects:1

Frequency modulation and demodulation: Oscillators can produce a stable alternating current signal, so they are often used in wireless communications, such as radio, television, radio, etc. 2.

Clock signal tuning: Oscillators can produce accurate clock signals, so they are widely used in timers, clocks, computers, and other applications. 3.

Test & Measurement: Oscillators can be used in test and measurement, such as test amplifiers, filters, oscilloscopes, etc. 4.

Generate audio signals: Oscillators can also be used to generate audio signals, such as in equipment. In short, the oscillator is a very important electronic component, which has a wide range of functions and is widely used in various production and life.

Hello, the method of making an oscillator varies depending on the type, here are two common methods: RC oscillator material: a noisy tube, a liquid slag electrolytic capacitor leather zen, several ceramic capacitors, several resistors, and a transformer.

Step: aConnect the electrolytic capacitors in parallel to the negative and ground wires of the amplification tube; b.

Connect the ceramic capacitor between the poles of the amplifier tube; c.Connect the resistor to the extreme of the amplification tube to control the current; d.Connect the transformer so that it generates a feedback signal.

Crystal oscillator materials: crystals, transistors, resistors, and capacitors. Steps:

a.The crystal is connected between the base and collector of the amplification tube to form a circuit; b.Add a capacitor to limit the current; c.

Use resistors to amplify signals; d.Connect the power supply and adjust the frequency until the desired frequency is reached. Note:

The above is only a brief introduction, because there are many types of oscillators, the specific production method should be detailed according to different oscillator types.

Scheme. First, the form of mutual inductance coupled oscillator is adopted. When the oscillation frequency of the base adjustment circuit changes over a wide range, the amplitude is relatively stable.

The modulation circuit can only solve the problem of the initial oscillation condition and the oscillation frequency, but cannot determine the magnitude of the amplitude. The mobilization circuit is more stable than the other two circuits in terms of high-frequency output, and the amplitude is larger and the harmonic component is smaller. When the feedback is adjusted (the coupling coefficient is changed), the oscillation frequency is not affected by the basic grinding of the mutually-inductive coupled oscillator.

However, due to the existence of distributed capacitance, it is difficult to make a transformer with high stability when the frequency is high, and the flexibility is poor.

Scheme. Second, the use of inductance three-point oscillation. Since there is mutual inductance between the two inductors, it is easy to vibrate.

In addition, changing the capacitance of the resonant circuit can easily adjust the oscillation frequency, because the feedback signal is taken from the voltage drop at both ends of the inductor, and the inductor presents a high impedance to the higher harmonics, so the feedback of the higher harmonics cannot be suppressed, so the higher harmonic components in the output signal of the oscillator are larger, and the signal waveform is poor.

Scheme. 3. Adopt capacitive three-point oscillator. There is a capacitor between the base and the emitter of the capacitor three-point vibration circuit, and the feedback signal is taken from both ends of the capacitor, and its impedance to the harmonic is very small, and the harmonic voltage is small, so that the harmonic component in the current of the collector circuit and the harmonic voltage of the loop are small.

The feedback signal is taken from both ends of the capacitor, because the capacitor presents a small capacitive reactance to the higher harmonics, so the higher harmonic components in the feedback signal are small, so the oscillation output waveform is good.