High Power LED Driver
Photograph:Hassy@MetaDesignWork
(C)2010 Hassy All Right Reserved
High Power Constant Current LED Driver
    
(700mA w/Dim)

Regulator

    


Optical Flicker/Noise
w/ One HB_LED

Switching Regulator

Simple Regulator

DC12V_Regulator


Another LED/LD Driver

(350/700/1250mA)


Optical Flicker/Noise Detector

    

    

Detector (only circuit)

Analyze w/FFT

No Signal(Light source)


CRT


Halogen Lamp (AC12V)
* Detector recognize AC Flicker as twice frequency
(count both positive & negative between zero cross)


Inverter CFL (High Grade)


Inverter CFL (Middle Grade)


Inverter CFL (Cheap Bulb)


Lo Volt Neon Lamp


EMF/EMI Analyze

w/Inductive Amp

Environment Noise (Room EMF)


CRT


Halogen Lamp (12V)


Inverter CFL (High Grade)

Regulator part


Inverter CFL (Middle Grade)

Regulator part


Inverter CFL (Cheap Bulb)


Lo Volt Neon Lamp


Flicker Interfere Simulation
w/ Dual Function Generator

    

Flicker Interfere Test
(Modulation of different frequency flickered LEDs)


Triangle wave 100Hz LED only

Triangle wave 120Hz LED only

Triangle wave 100Hz & 120Hz LEDs make modulations
(20/40/60/80Hz...generated)


Triangle wave 200Hz LED only

Triangle wave 240Hz LED only

Triangle wave 200Hz & 240Hz LEDs make modulations
(40/80/120/160Hz...generated)


Square wave 100Hz LED only

Square wave 120Hz LED only

Square wave 100Hz & 120Hz LEDs make modulations
(20/40/60/80Hz...generated)


Square wave 200Hz only

Square wave 240Hz only

Square wave 200Hz & 240Hz make modulations
(40/80/120/160Hz...generated)

    
CRT

( Blue : Optical Flicker/Noise Red : EMF/EMI )

    
HalogenLamp (AC12V)

( Blue : Optical Flicker/Noise Red : EMF/EMI )

    
Inverter CFL (High Grade)

( Blue : Optical Flicker/Noise Red : EMF/EMI )

    
Inverter CFL (Middle Grade)

( Blue : Optical Flicker/Noise Red : EMF/EMI )

    
Inverter CFL (Cheap Bulb)

( Blue : Optical Flicker/Noise Red : EMF/EMI )

    
Lo Volt Neon Lamp

( Blue : Optical Flicker/Noise Red : EMF/EMI )


Back to Light Eqiuipments Back to Sensor/Measurement Back to Home

50Hz & 100Hz LEDs modulation
(with position moving / Rainfall FFT)
Movie 1 Movie 2 Movie 3


Optical Flicker/Noise Detector
(SMD/same spec as Standard type)
    


Optical Flicker/Noise Detector
(SMD/LED blink only)
    



EMF/EMI & Optical Flicker/Noise Detector
w/100 or 30Hz LPF to PSE warning function
(PSE : Photosensitive epilepsy)

    


    

    

    

Analyze w/FFT
Split Mode / Dual Mode
    
NoSignal

( Blue : Optical Flicker/Noise Red : EMF/EMI )


(C)2000-2016 Hassy All Right Reserved
Meta Design Work