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Zener diode voltage reference PUBLICA Zener diode provides controlled reverse breakdown, and can act as a fixed voltage reference. by CircuitLab  updated June 08, 2017 

Resistors in series and parallel PUBLICCircuitLab has no problem simulating big circuits of resistors, voltage sources, and current sources. by CircuitLab  updated June 08, 2017 

RLC resonance PUBLICA square wave into a resistor, inductor, and capacitor can produce ringing and narrowband amplification by CircuitLab  updated June 08, 2017 

Opamp noninverting amplifier PUBLICTwo resistors plus an opamp form a gainof10 amplifier. by CircuitLab  updated June 08, 2017 

Opamp inverting amplifier PUBLICTwo resistors plus an opamp form a gainof10 (inverted) amplifier. by CircuitLab  updated June 08, 2017 

MOSFET switching inductive loads PUBLICA nchannel MOSFET switches an inductive load, both with and without a diode to catch the voltage spike. by CircuitLab  updated June 08, 2017 

MOSFET (CMOS) NOR gate PUBLICTwo nchannel MOSFETs and two complementary pchannel MOSFETs form a twoinput CMOS NOR logic gate. by CircuitLab  updated June 08, 2017 

MOSFET (CMOS) NAND gate PUBLICTwo nchannel MOSFETs and two complementary pchannel MOSFETs form a twoinput CMOS NAND logic gate. by CircuitLab  updated June 08, 2017 

MOSFET and resistor NOR gate PUBLICTwo nchannel MOSFETs plus one pullup resistor form a twoinput NOR logic gate. by CircuitLab  updated June 08, 2017 

MOSFET and resistor NAND gate PUBLICTwo nchannel MOSFETs plus one pullup resistor form a twoinput NAND logic gate. by CircuitLab  updated June 08, 2017 

Mechanical spring dashpot Laplace model PUBLICCircuitLab can be used to model some mechanical systems as well. by CircuitLab  updated June 08, 2017 

JFETbased electret microphone amplifier PUBLICMost electret microphone modules today come with a builtin JFET to help provide a lowimpedance output and noise resistance, but these must be biased properly. by CircuitLab  updated June 08, 2017 

LEDs with resistor biasing PUBLICLEDs are usually found with a resistor in series to select the desired current (and therefore brightness and power consumption). by CircuitLab  updated June 07, 2017 

Laplace transform step response and Bode plot PUBLICCircuitLab can also handle arbitrary Laplace transform functions, and can produce step response plots in the time domain and Bode plots in the frequency domain. by CircuitLab  updated June 07, 2017 

Diode turnoff time PUBLICDiodes can take a surprisingly long time to turn off, as we show in this demo. by CircuitLab  updated June 07, 2017 

Diode fullwave rectifier PUBLICFour diodes (a "bridge rectifier") plus a capacitor can be used to rectify AC into DC, with conduction over most of the the input power cycle. by CircuitLab  updated June 07, 2017 

Diode halfwave rectifier PUBLICA single diode plus a capacitor can be used to rectify AC into DC, but often with a lot of ripple at the output. by CircuitLab  updated June 07, 2017 

Digital 4bit counter and DAC PUBLICA fourbit digital counter is implemented with discrete digital logic and registers. Those four bits are fed into an opamp based digitaltoanalog converter (DAC). by CircuitLab  updated June 07, 2017 

BJT current mirror PUBLICTwo NPN bipolar transistors form a current mirror. by CircuitLab  updated June 07, 2017 

BJT Cascoded Activeload Differential Amplifier with CMFB PUBLIC10 BJTs and an opamp provide a gain of almost +70dB and about 16kHz bandwidth. A cascoded active load provides highimpedance load for the emittercoupled pair. by CircuitLab  updated June 07, 2017 