Wien Bridge Oscillator Using JFET Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12325
Indian Lab Suppliers supplies the Wien Bridge Oscillator Using JFET (Product ID: 12325) as part of its electronics engineering lab equipment range. It is a Wien bridge audio oscillator built with JFETs that gives a sine wave at three frequencies.
Quick Answer
The RC lead-lag network of the Wien bridge sets the frequency at f = 1/(2πRC), and the JFET amplifier supplies the gain needed to keep the oscillation going. The circuit is designed to give a sinusoidal output of about 3 V p-p at three frequencies, and a potentiometer varies the amplitude. Students set up the oscillator, check the waveform on a 20 MHz CRO and measure each frequency on a digital frequency counter; both instruments are extra. Two JFETs are fitted, powered by an internal 12 V DC, 100 mA IC-regulated supply.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiment | Design and set-up of a JFET Wien bridge oscillator |
| Output | Sine wave, about 3 V p-p, three frequencies |
| Active devices | Two JFETs |
| Amplitude control | Potentiometer |
| Supply | 12 V DC at 100 mA, IC regulated, internal |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and indicator lamp |
| Also required (not included) | Digital frequency counter, 20 MHz CRO |
Where This Is Used
Used in oscillator practicals in analog electronics. Op-amp version: Wien Bridge Oscillator (Op Amp version) with Power Supply (Product ID: 12301); see also Wien bridge audio oscillator with power supply (Product ID: 12135). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What sets the oscillation frequency?
The R and C values of the lead-lag network, f = 1/(2πRC).
How many frequencies are available?
Three.
What amplifying devices are used?
Two JFETs.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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