Now showing circuits 1-19 of 19. Sort by

LED Low Level Lighting

LED Low Level Lighting PUBLIC

LED yard lighting. Used to illuminate back yard with enough light to navigate paths safely at night.

by RBClarke | updated March 11, 2016

constant-current-source   led  

Differential Pair

Differential Pair PUBLIC

BJT differential amplifier with a current source for polarization

by juanbn1503 | updated October 28, 2015

amplifier   bj   constant-current-source   differential  

fuente de corriente

fuente de corriente PUBLIC

La fuente esta diseƱada bajo la configuraciĆ³n propuesta por Widlar, con resistencia en el emisor de Q2, la corriente de salida es de 5.62 mA

by jorelmaro | updated September 15, 2013

constant-current-source   current-mirror  

JFET Common source amplifier

JFET Common source amplifier PUBLIC

JFET common source amplifier circuit. An NPN BJT transistor is used to provide constant current bias for the JFET. Capacitor C1 is used to provide a path to AC signals, effectively providing a stable...

by Ahmood | updated June 28, 2013

common-source-amplifier   constant-current-source   jfet  

LED multi string linear constant current sink 01

LED multi string linear constant current sink 01 PUBLIC

DC Sweep doesn't simulate properly in CL for all values of R7. Time Domain simulation shows erroneous current spike at startup. See below.

by signality | updated April 15, 2013

constant-current-sink   constant-current-source   led   led-array   led-string  

LED multi string linear constant current sink 03

LED multi string linear constant current sink 03 PUBLIC

This slightly simplified version of: LED multi string linear constant current sink 01 simulates fine in DC Sweep and Time Domain.

by signality | updated April 15, 2013

constant-current-sink   constant-current-source   led   led-array   led-string  

LED multi string linear constant current sink 02

LED multi string linear constant current sink 02 PUBLIC

An attempt to get the time domain sim of: LED multi string linear constant current sink 01 to work properly. It doesn't. Time Domain simulation still shows erroneous current spikes at startup.

by signality | updated April 15, 2013

constant-current-sink   constant-current-source   current-sink   led   led-array   led-string  

2 transistor constant current sink 01

2 transistor constant current sink 01 PUBLIC

Q2 collector current is held roughly constant over a wide range of V1. Use PNPs for a current source. F5 to simulate.

by signality | updated April 15, 2013

constant-current-sink   constant-current-source  

Voltage Controled Current Sink

Voltage Controled Current Sink PUBLIC

Opamp and transistor used to convert a voltage to a current. The voltage to current relationship can be tailored using the following formula: I = Vc/R1 Set R1 to a value that will produce the desired...

by ReverseEMF | updated April 06, 2013

constant-current-source   currentsink   opamp   transistor   volt-to-current-simk  

LaserDriverLM317

LaserDriverLM317 PUBLIC

This is a fairly standard constant current driver circuit with Zener over protection applied. R1 is best replaced with an Inrush Current Limiter (Thermistor)

by TopTurtle57 | updated March 28, 2013

200mw-808nm-laser-driver   constant-current-source   laser-driver  

constant current source LED driver linear 01

constant current source LED driver linear 01 PUBLIC

A precision current source. Simulate > Time Domain > Run Time-Domain Simulation

by signality | updated February 24, 2013

constant-current-source   current-source   opamp-current-source   precision-current-source  

ConstantCurrentSource

ConstantCurrentSource PUBLIC

by InnerAlien | updated January 31, 2013

constant-current-source   led  

Constant Current 2

Constant Current 2 PUBLIC

by Optionparty | updated December 11, 2012

constant-current-source  

Test: LM317 current source

Test: LM317 current source PUBLIC

LM317 used as current stabilizer in a test environment to find settings and limits.

by Sancho_P | updated December 02, 2012

behavioral-source   constant-current-source   lm317   newbie   test  

CB Current Source

CB Current Source PUBLIC

by eross77 | updated October 27, 2012

constant-current-source  

Constant current regulator

Constant current regulator PUBLIC

This is a constant current mode of lead acid battery charger i'm building

by miceuz | updated June 14, 2012

constant-current-source   opamp  

Howland Current Source

Howland Current Source PUBLIC

Classic Howland Current Source

by anubi | updated May 23, 2012

constant-current-source   current-regulator   op-amp  

constant current opamp pnp

constant current opamp pnp PUBLIC

by mayankbhatia | updated May 21, 2012

constant-current-source  

Constant Current Source 0-4 mA

Constant Current Source 0-4 mA PUBLIC

by uk2012 | updated March 26, 2012

2n2907a   ccs   constant-current-source   diy   milliamp   pnp   tdcs   transistor  

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