Username signality
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Member Since March 7, 2012

signality's Public Circuits:

Now showing circuits 141-160 of 310. Sort by

Forcing initial inductor current

Forcing initial inductor current PUBLIC

A time-controlled switch can be used to force an inductor to start with a given current through it.

by signality | updated February 22, 2013

inductor-current   initial-conditions  

bad variable gain amp design 01

bad variable gain amp design 01 PUBLIC

When R14.K = 0, this amplifier circuit turns into a pure differentiator. The peak in the Amplitude response also shows that it goes unstable. For more see:...

by signality | updated February 22, 2013

touch on touch off switch 01

touch on touch off switch 01 PUBLIC

A basic touch on touch off switch with a single electrode capacitive sensor input. See thread:...

by signality | updated February 21, 2013

capacitive-sensor   tap-on-tap-off   touch-on-touch-off   touch-switch  

high gain low bw amp for touch switch 01

high gain low bw amp for touch switch 01 PUBLIC

Bode plot of the high gain low bandwidth amplifier front end for touch switch: https://www.circuitlab.com/circuit/gezhvv/touch-on-touch-off-switch-01/ Simulate > Frequency Domain > Run...

by signality | updated February 21, 2013

constant current SMPS LED driver 01

constant current SMPS LED driver 01 PUBLIC

A generic Voltage Mode Boost (step up) Converter to drive a constant current of 10mA through a LED string. Simulate > Time Domain > Run Time-Domain Simulation

by signality | updated February 18, 2013

boost-converter   constant-current   led-driver   switch-mode  

swept lowpass filter 01

swept lowpass filter 01 PUBLIC

by signality | updated February 16, 2013

low-pass-filter   swept-filter   swept-pot   swept-resistor   tone-control   tone-stack   variable-filter   variable-resistor  

astable flip flop classical 01

astable flip flop classical 01 PUBLIC

by signality | updated February 13, 2013

astable   initial-conditions   startup  

laplace block in feedback loop 01

laplace block in feedback loop 01 PUBLIC

Well done CL! You've made a Laplace block that converges and gives realistic, accurate results in a feedback loop.

by signality | updated January 18, 2013

Test: Loading a capacitor 02

Test: Loading a capacitor 02 PUBLIC

by signality | updated January 13, 2013

Test: Loading a capacitor 03

Test: Loading a capacitor 03 PUBLIC

by signality | updated January 13, 2013

Voltage controlled switch driven by clock signal

Voltage controlled switch driven by clock signal PUBLIC

by signality | updated January 13, 2013

clock   voltage-controlled-switch  

AC circuit example workaround for CL 01

AC circuit example workaround for CL 01 PUBLIC

UPDATE: CL have now fixed this type of problem so this workaround is now superceded: see:...

by signality | updated January 07, 2013

bode-plot   multiple-ac-sources  

Y Delta transformer 01

Y Delta transformer 01 PUBLIC

A Y-Delta transformer built using 3 separate 1:1 transfomers wired as shown in: http://en.wikipedia.org/wiki/Delta-wye_transformer An exponential startup ramp is used to set up the initial...

by signality | updated January 04, 2013

delta-wye   delta-y   wye-delta   y-delta   yd5  

Precision full wave rectifier 01

Precision full wave rectifier 01 PUBLIC

One of many possible precision fullwave rectifiers using opamps. This one requires a low impedance signal source and a high impedance load to operate correctly.

by signality | updated January 02, 2013

active-rectifier   diode   full-wave-rectifier   precision-rectifier  

Good netname and a free voltage source

Good netname and a free voltage source PUBLIC

The +1V or +1 netname invokes an implicit 1V source. However see also: [circuitlab]8mx32g[/circuitlab]

by signality | updated January 01, 2013

label   label-voltage-source   net-name  

Bad net name

Bad net name PUBLIC

The +1V or +1 netname invokes an implicit 1V source. CL then complains because the explicit 1V source, V1, is then in parallel with the implied source.

by signality | updated January 01, 2013

label   label-voltage-source   net-name  

Radio Shack photodetector 01

Radio Shack photodetector 01 PUBLIC

A very simple model of the LED and IR photodetector parts of: http://www.radioshack.com/product/index.jsp?productId=2049723 Simulate > Time Domain > Run Time-Domain Simulation

by signality | updated December 19, 2012

optical-receiver   photo-detector   photodiode   transimpedance-amplifier  

zero crossing detectors 01

zero crossing detectors 01 PUBLIC

by signality | updated December 17, 2012

rberne opto simplified 02

rberne opto simplified 02 PUBLIC

by signality | updated December 17, 2012

rberne opto simplified

rberne opto simplified PUBLIC

by signality | updated December 17, 2012