Now showing circuits 41-56 of 56. Sort by

NTC converter for fan speed control

NTC converter for fan speed control PUBLIC

A simple converter for a NTC thermal sensor to a voltage signal. The DC-Sweep simulation is used to pick the desired resistance value in series to the NTC.

by Sancho_P | updated November 07, 2012

555   fan-speed-control   newbie   ntc   pwm  

555 Clock for fan speed control

555 Clock for fan speed control PUBLIC

A 25 kHz clock circuit, set to about 75 % duty cycle, using a 555 timer.

by Sancho_P | updated November 07, 2012

555   behavioral-sources   fan-speed-control   newbie   ntc   pwm  

555 PWM for fan speed control

555 PWM for fan speed control PUBLIC

I wanted to control a computer’s fan speed by the air temperature at the “hot spot” (the power supply air outlet). The project consists of three parts for easy simulation and was later verified on a...

by Sancho_P | updated November 07, 2012

555   behavioral-sources   fan-speed-control   newbie   ntc   pwm  

Dual 555 PWM generator

Dual 555 PWM generator PUBLIC

A simple 2x555 PWM generator intended for use as an ADC in which a computer times the pulse length. U1 produces a chain of trigger pulses for U2, which produces pulses whose length is dictated by the...

by thekeywordgeek | updated October 31, 2012

555   adc   pwm  

EW 555 Heart

EW 555 Heart PUBLIC

by baum | updated September 30, 2012

555  

PWM Motor Control

PWM Motor Control PUBLIC

by Phozz | updated July 19, 2012

555   control   fan   motor   pwm   speed  

555-ignition - Simpler

555-ignition - Simpler PUBLIC

A circuit using a 555 timer that gives pulses to a mosfet, driving an ignition coil making a spark plug spark. To potentiometers make the pulses for the spark plug variable.

by chrlilje | updated April 05, 2012

555   ignition-coil   mosfet   spark-plug  

555 Oscillator

555 Oscillator PUBLIC

Yet another 555-timer-based oscillator.

by JamesFysh | updated March 20, 2012

555   oscillator  

Fading Led

Fading Led PUBLIC

by RfbxTixZKBq2 | updated March 11, 2012

555   fading-led   led  

PWM

PWM PUBLIC

Simple potentiometer controlled PWM with the classic 555 chip

by pkilian | updated March 07, 2012

555   pwm  

PWM Motor Driver

PWM Motor Driver PUBLIC

555 pwm circuit for driving a bunch of PC case fans. Pulse width should be well above the 20 kHz audible range.

by robgig1088 | updated March 04, 2012

555   mosfet   pwm  

555 motor controller

555 motor controller PUBLIC

555 oscillator easy motor control. not so stable. very effective.

by danielfiction | updated March 02, 2012

555   555-motor-controller   astable   bjt   cheap   dfiction   econo   flyback-diode   motor   pwm  

Copy of danielfiction's 555 motor controller ($0.50!)

Copy of danielfiction's 555 motor controller ($0.50!) PUBLIC

Build a PWM motor controller for $0.50! Based on danielfiction's circuit (link inside).

by mrobbins | updated March 01, 2012

555   bjt   motor   pwm  

Atari Punk Console

Atari Punk Console PUBLIC

by SparkleLabs | updated February 29, 2012

555  

555 as Pulse Width Modulation (PWM) generator

555 as Pulse Width Modulation (PWM) generator PUBLIC

555 timer as a PWM generator based on an analog input source.

by mrobbins | updated January 24, 2012

555   pwm  

555 as astable (oscillator)

555 as astable (oscillator) PUBLIC

555 timer as a square wave oscillator (astable mode)

by mrobbins | updated January 24, 2012

555   oscillator   time-constant  

More tags

555   7805   ac-to-dc   active-filter   amplifier   analog   and   anode   attenuator   atx   audio   automotive   band-reject   bandgap   behavioral   bias-point   bjt   bode   bridge-rectifier   button   calculator   cascaded-filters   cascode   cathode   cmos   colpitts   compensation   constant-current-source   current-limiting   current-mirror   current-monitor   current-regulator   dac   dc-to-ac   device-modeling   differential   differentiator   digital   diode   divider   emitter-follower   feedback   filter   flyback   flyback-diode   frequency-domain   full-wave   guitar   ham-radio   high-pass   high-speed   high-voltage   hv   hysteresis   ic   ignition-coil   induction   inductive   inductive-load   initial-conditions   instrumentation-amplifier   integrator   inverting   jfet   laplace   led   led-array   level-shift   lighting   lipo   lm317   load-cell   logic-gate   low-pass   mechanical   microcontroller   microphone   mosfet   motor   multivibrator   non-inverting   nonlinear   nor   notch   ohms-law   op-amp   optical   or   oscillator   parallel   passive   passive-filter   pcb-design   phase-shift   photodiode   photoresistor   phototransistor   piezo   plants   potentiometer   power   power-supply   power-supply-unit   preamp   pull-down   pull-up   pwm   rc   relaxation-oscillator   relay   resistor-ladder   resonance   rf   rlc   rom   saturation   schmitt-trigger   sensor   series   servo-motor   signal   spark-plug   stability   stepper   summing   superposition   switching   time-constant   transformer   transistor   translinear   twin-t   voltage-divider   voltage-regulator   waveform-arithmetic   wiring   xnor   xor   zener-diode   zero-voltage-switching  

About CircuitLab

CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.