Category Archives: Signal Processing

Featured Posts

MAX1703 Single-Cell Boost Converter Circuit

When you design a circuit with only a single-cell battery, you will need boost-converter to provide enough voltage for most ...

Read More

55MHz Scope Sensitivity Amplifier

Scope sensitivity amplifier is a vital front-end signal processing for every scope instruments. The function of this circuitry is simple: ...

Read More

Two-Band Bxandall Active Tone Control

Using active circuit for tone control means that we can provide cut and boost, maintaining overall amplifying factor of original ...

Read More

Pulse Width (PWM) Controller Circuit

A LM3900 quad operational amplifier can be used to build a pulse width (PWM) controller. The LM3900 was chosen because ...

Read More

Small TV Modulator Using A Motorola MC1374

How can television modulator be small and simple like this? First, it uses integrated circuit, and the second, any TV ...

Read More

Transistor Emitter-Follower Buffer

For a voltage source, an emitter follower can serve as a buffer. The voltage divider on the left is so strongly affected by the value of the load resistor make it a poor voltage source. The same voltage divider on … Continue reading

Posted in Audio and Music, Signal Processing | Tagged | Comments Off on Transistor Emitter-Follower Buffer

NPN Transistor Common Collector Amplifier

This is circuit of NPN Common Collector Amplifier. This circuit can be used for impedance matching. This circuit similar to the Emitter Follower circuit because the emitter of this circuit is follows the base minus a diode drop. This circuit … Continue reading

Posted in Audio and Music, Signal Processing | Tagged | Comments Off on NPN Transistor Common Collector Amplifier

Transistor Amplifier – Emitter Follower

This a Emitter Follower circuit. This circuit is also called The common collector junction transistor amplifier. This amplifier has little voltage gain, less than one, because the emitter voltage is forced to drop about 0.6V below the base. This circuit … Continue reading

Posted in Signal Processing | Tagged | Comments Off on Transistor Amplifier – Emitter Follower

FET Switch: A Voltage-Controlled Analog Switch

This is a JFET switch circuit.This circuit uses a MPF102 JFET transistor. In this circuit, the JFET is symmetrical, so the input can be source or drain. The MPF102 is used because this transistor has gate’s reverse breakdown voltage of … Continue reading

Posted in Control Electronics, Signal Processing | Tagged | Comments Off on FET Switch: A Voltage-Controlled Analog Switch
« 1 2 3 4 5 6 7 8 9 10 11 12 ... 28 »