Also, the DC emitter tail current, Iq, is set to 10 milliamps while setting the signal current, Isig, to +/- 2 milliamps. The control voltage, Vcontrol, is adjusted to a negative voltage at the base ...

Figure 25 A voltage controlled amplifier by varying the drain voltage of U1A. VR1 adjusts the control voltage at the non-inverting input of the op amp, U2A. Since the (control) voltage is ...

Explore the concept of negative feedback and its role in maintaining system stability across various applications.

ROHM has developed a new lineup of high accuracy current sense amps — the BD1423xFVJ-C and the BD1422xG-C. They are qualified ...

NAMM 2025: AmpRx has sought to shake things up for tube amp users by releasing the Brownie – a nifty voltage controller tool ...

The adjustable regulator is represented as an op amp with open-loop gain of G 1 and a reference voltage V REF applied to its positive input. The output of the voltage regulator is voltage V OUT .

Normally, if you want to control the gain of an amplifier, you’ll use a variable resistor. You know, like a volume control. But what if you want to control the amplifier’s gain with a voltage?

Here’s a nostalgic vibe of an awesome analog chip from the 1990s era that’s still making an impact in audio designs.