Tag: Amplifier Circuits

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Figure below shows a photodiode amplifier for measuring low levels of light. Best sensitivity and bandwidth are...

When someone mentions the word “computer,” a digital device is what usually comes to mind. Digital circuits...

(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at diode cathode, without C2 filter capacitor. (d)...

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Phase shift oscillator. R1C1, R2C2, and R3C3 each provide 60° of phase shift.   The phase shift oscillator of the...

Note, Q3 and Q4 in the figure below are complementary, NPN and PNP respectively. This circuit works well for moderate...

There are three major kinds of power supplies: unregulated (also called brute force), linear regulated, and switching....

At the start of this book, we discussed static electricity and how it is created. This has a lot more significance than...