Now showing circuits 41-48 of 48. Sort by

DX Amp

DX Amp PUBLIC

This is a simple 50 watt audio power amplifier circuit that was designed by Brazilian Carlos Mergulhão who offers it freely to the DIY community -- for non commercial use. It has since become renowned...

by TAJ | updated March 13, 2012

amplifier   audio   bjt  

TL431-like shunt voltage regulator

TL431-like shunt voltage regulator PUBLIC

BJT, op-amp, and internal reference voltage source make a model of a shunt voltage regulator

by mrobbins | updated March 06, 2012

bjt   op-amp   voltage-regulator  

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  

BJT difference amp

BJT difference amp PUBLIC

by mrobbins | updated February 04, 2012

amplifier   bjt  

BJT saturation characteristic tester

BJT saturation characteristic tester PUBLIC

by mrobbins | updated November 13, 2011

bjt   saturation  

BJT f_T measurement

BJT f_T measurement PUBLIC

by mrobbins | updated November 11, 2011

bjt   frequency-domain   high-speed   rf  

Cascode current mirror -- actively loaded differential pair amp

Cascode current mirror -- actively loaded differential pair amp PUBLIC

Q1 and Q2 are the main amplification. The four PNP BJTs provide a cascoded current mirror for super high gain active load.

by mrobbins | updated November 01, 2011

amplifier   bjt   cascode  

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  

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