Led Diode Anode

Is it "circuit safe" to use signal diodes on the cathode of a Bi-Led?

I have a 3 pin Bi-LED, two anodes and one cathode. I am using it with
two transistors, each transistor controls a anode. The only way I can
sucesfully use this Bi-LED is if I attach 2 signal diodes to the
cathode (gnd), thus creating two seperate cathodes, connecting them to
the collector of the transistor.

How will this effect the formula in choosing a resistor on the Bi-LED's anodes? I would assume that a smaller resistance would be chosen.
It should be noted that one of the transistors are also powering a 150mA relay.

http://www.myfilehut.com/userfiles/155002/BiLED.JPG

Pancakes, could you offer some details on your solution, where on the transistor would you connect the annodes?
the two current sources are for simulation

I still don't quite get the point of this circuitry with the "OR" logic (the 2 diodes) to light up both LED colours (green & red). I would have thought only Q1 -> D7 -> D2 or Q3 -> D6 -> D2.
But that's your business....
To answer your question, each diode will only "steal" about 0.5 - 0.7 Volt away, not worth to change the resistor value, the LEDs will just be almost unnoticeably dimmer.

LightEmitting Diode $68.51 Light emitting diode. Oleg Losev, List of LED failure modes, Organic light emitting diode, Miniature light emitting diode, Solid state lighting, LED lamp, LED power sources, Electrical polarity of LEDs, LED circuit, LED as light sensor Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 74 Publication Date: 2009/10/08 Language: English Dimensions: 5.98 x 9.01 x 0.17 inches

Anode $81.25 An anode is an electrode through which electric current flows into a polarized electrical device. Mnemonic: ACID (Anode Current Into Device). Electrons flow in the opposite direction to the electric current (flow of hypothetical positive charge). A widespread misconception is that anode polarity is always positive. This is often incorrectly inferred from the correct fact that in all electrochemical devices negatively charged anions move towards the anode (hence their name) and/or positively charged cations move away from it. In fact anode polarity depends on the device type, and sometimes even in which mode it operates, as per the above electric current directionbased universal definition. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 102 Publication Date: 2009/11/24 Language: English Dimensions: 5.98 x 9.01 x 0.24 inches

Pacer 12 Diode LED Light $12.95 LED (Light Emitting Diode) lighting gives extra brightness and longer life than conventional bulbs. Pacer's LED Light Kit works well as a third brake or turn signal indicator. It is actually 12 LED lights within 1 larger light. The compact, slimline design allows a great variety of mounting location options. Includes one light. Mounts with two-sided tape Simple two wire installation Long life Low power draw Each light is 4 5/8'' L x 7/16'' W x 3/4'' H. Available in Red, Amber, White and Blue* *White and blue lights are an additional $2.00

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Kuryakyn L.E.D. Turn Signal Diode Kit $7.99 This kit is required when installing L.E.D. lights as turn signals on a motorcycle with a single turn signal indicator light. If this Diode Kit is not installed, power will back feed across the indicator light & all turn signals will flash at once.

ANODE $22.5 available at cmsnl.com - parts for a better ride

The Anode $12.19 No Synopsis Available

Kuryakyn Diode Kit $6.76 " This kit is required when installing LED. lights as turn signals on a motorcycle with a single turn signal indicator light If this diode kit is not installed, power will back feed across the indicator light and all turn signals will ff"

Rudder Anode - Magnesium - MAGNESIUM ANODE, 2-13/16 RUDDER $15.94 Rudder Anode - Magnesium - MAGNESIUM ANODE, 2-13/16" RUDDER Martyr Anodes Rudder Anode - Magnesium - MAGNESIUM ANODE, 2-13/16" RUDDER

Savio RAD1000 4W LED Light (17 Diode) $111.15 Enhance the mood of your water garden while highlighting points of interest with an illuminating light display of energy efficient LED lights from Savio. LED lights never get hot to the touch safe for fish and plants Available in two sizes rugged professional housing units are backed by Savio s quality and a oneyear warranty. LED New Technology An excellent way to save money and energy Radiance LED lights can be added as accents in or out of the water. Ideal for waterfalls and semiaquatic environments LED lights emit almost no heat are incredibly energy efficient delivering remarkable brightness and longevity. 4W LED Light (17 Diode). Durable construction. Can be used in or out of water. 20 Cord.

Sierra 18 6053 Anode $4.99 Sierra 18 6053 Anode . 18-6053 Anode

Sierra 18 6052 Anode $6.49 Sierra 18 6052 Anode . 18-6052 Anode

Sierra 18 6050 Anode $3.99 Sierra 18 6050 Anode . 18-6050 Anode

Camco .63in. OD Anode Rod 11572 $31.16 Anode rod

Led Slimline Id Light Bar Red 15 3 Diode $19.94 Led Slimline Id Light Bar Red 15" 3 Diode 15" SlimlineA(r) LED I.D. Light Bar Red. Features: Operates 9 16 Volt DC systems 100,000 hours of service life Shock and vibration proof No Corrosion Sealed marker lights Impact resistant polycarbonate housing Energy draw 250 miliamps interchangeable with most manufactures 14.50" mounting centers

Sierra 18 6027 Anode $35.99 Sierra 18 6027 Anode . replaces: OMC 392123

Sierra 18 6068 Anode $8.29 Sierra 18 6068 Anode . fits: BF75-BF90 (1997-98)

Grouper Anode Zinc Grouper Fish Zinc Anode W/6' Cable $44.94 Grouper Anode Zinc Grouper Fish Zinc Anode W/6' Cable Martyr Anodes Grouper Anode - Zinc - GROUPER FISH ZINC ANODE W/6' CABLE

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