August 7th, 2009
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L298 H Bridge Diode
L298 H Bridge Diode
Is it safe to connect 240V AC Bulb rated 100W to 240V DC?


I just want to try working with a voltage multiplier with capacitors and diodes.

I'm having two 6V batteries of 4.5Ah.
Since i got the battery, Its having ~10V output. Lets assume 8V each. Together in series it'd b ~15V minimum.

I can think of generating 50Hz (or required freq) with 555
and
using a H-Bridge(2N3055 and its PNP) or L298 (actually intended to drive motors), connect a voltage multiplier as load.

Each capacitor in the voltage multiplier is rated 1000uF 63V.

With around 20 capacitors, i should reach voltage near 200-250V. (while doing anyway I'll verify the batteries voltage x num of capacitors)

For testing the working, i'd like to connect a bulb.

I'm just afraid to connect this 200-250V DC supply to my bulb which is actually for AC.

I guess i wont get so much power bcoz 15V*5A gives around 75W. So, can i just connect a 75W 220V AC Bulb to this DC output of my circuit?

Is it safe??

Any comments/suggestions?

Yes it will be safe. Remember the peak voltage of 240V RMS AC is actually 340 V so there won't be any safety issues connecting it to 240V DC.

However it probably won't work because your voltage multiplier won't deliver enough current. A 240V 100W bulb will draw about 0.4A

If you are using a 50Hz oscillator, each capacitor will have to provide 0.4A for 1/50 of a second or 0.02s. This is a charge of 0.4 x 0.02 = 0.008 C.

So the voltage on each 1000 uF capacitor would fall by
0.008 / 1000x 10^-6 = 8 volts during each cycle. That will make a big hole in your voltage calculations.

For a first try, you could use a neon mains indicator lamp that will "strike" at about 80V and take very little current. They have a built-in resistor (usually 1 Mohm) to limit the current, so they are safe to connect to high voltages (usually they are rated for 1000V).



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These two age defying serums are packaged separately to maximize the benefits of the antioxidants derived from rosemary and green tea. This powerful combination tones and energizes the skin, providing an immediate firming effect. The skin is smoother and tighter after a single application. With continued use, these serums help diminish the appearance of fine lines and brown spots. Tighten and firm . Even out pigmentation . Reduce the appearance of fine lines Directions: Apply two pumps of Diode 1 over cleansed face and neck, morning and evening. Follow with Diode 2. Should be worn under moisturizer. Suitable for all skin types. Net Weight: (15 ml/0.5 oz.) x 2 Ingredients: Diode 1: Water/Aqua, Propylene Glycol, Rosmarinus Officinalis (Rosemary) Leaf Extract, Cellulose Gum, Methylparaben, Chlorphenesin, Sorbitol, Phenoxyethanol, Ethylparaben, Propylparaben, Butylparaben, Isobutylparaben. Diode 2: Water/Aqua, Propylene Glycol, Camellia Sinensis (Green Tea) Leaf Extract, Cellulose Gum, Methylparaben, Chlorphenesin.

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The red carpet of skin care to keep your skin looking and feeling its best. Alchimie Forever's gentle cream cleanser and makeup remover cleanses, the serums firm, and the nourishing cream moisturizes deeply while quelling redness. Ideal during the spring months, and year-round!  Set includes: Alchimie Forever Excimer Cream Cleanser (200 ml/3.3 oz.) Alchimie Forever Diode 1 + Diode 2 Age Defying Serums (2 x 15 ml/0.5 oz.) Alchimie Forever Kantic+ Intensely Nourishing Cream (50 ml/1.7 oz.) Directions: Daily, apply generously Excimer cream cleanser to dry or slightly damp face and neck with a cotton pad or finger tips. Then, apply two pumps of Diode 1 on the face and neck, follow with Diode 2. Finally, smooth over with Kantic+ intensely nourishing cream. Ideal for dehydrated, dry and sensible skin types. Net Weight: Please see individual items. Ingredients: Please see individual items.

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Laser Diode Microsystems provides the reader with the basic knowledge and understanding required for using semiconductor laser diodes in optical microsystems and microoptical electromechanic systems. This tutorial addresses the fundamentals of semiconductor laser operation and design, coupled with an overview of the types of laser diodes suitable for use in Microsystems, along with their distinguishing characteristics. Emphasis is placed on laser diode characterization and measurement as well as the assembly techniques and optical accessories required for incorporation of semiconductor lasers into complex microsystems. Equipped with typical results and calculation examples, this handon text helps readers to develop a feel for how to choose a laser diode, characterize it and incorporate it into a microsystem. Author: Zappe, Hans P./ Zappe, H. Series Title: Microtechnology and Mems (Hardcover) Binding Type: Hardcover Number of Pages: 355 Publication Date: 2003/10/10 Language: English Dimensions: 9.21 x 6.14 x 0.81 inches

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You can have it all with this perfectly sized weekend bag ready for all your travel needs! Designed to be durable yet light, this beautiful pink Getaway Bag is made with sturdy nylon oxford with PVC backing and has four exterior pockets, one on each side of the bag. A polyurethane coating makes it water repellent and stain resistant. Interior is lined with pink micro fiber. Easy zip with embossed Jaqua heart zipper pull. Elegant grosgrain ribbon handles in chocolate brown give this bag a savvy feminine touch. Size 17"H x 5"D x 14"W

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Professional 5 Piece Brush Set Too Faced created "Teddy Bear Hair" brushes using the world's most luxurious synthetic hair that grabs and blends pigments so perfectly you'll look like a star every time you use them. In fact Too Faced worked with a wig manufacturer to get it as soft and silky as real animal hair, without any of the cruelty involved. They last longer than traditional "real hair" brushes and won't spread bacteria! Set contains the following brushes: Powder/Blush Angled Shadow (for lids and crease) Fluff Shadow Blender (to blend out color) Eye Definer (for crease or darker defining color near liner), Angled Liner/Brow (for precision eye lining and brow defining) Bag Size: 5.5" W x 7" L x 2" H

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With its unique combination of botanical active ingredients and mineral pigments, this light and silky tinted moisturizer delivers a natural, healthy-looking glow with ‘barely there’ coverage. Skin tone is smooth and flawlessly even with a subtle glow and a ‘barely there’ look. Wild chicory root and gymnema sylvestre naturally provide sheer shades that blend easily into natural skin tone. Mineral powders and pigments help minimize imperfections for a flawless finish. Frangipani flower helps lock in moisture while jasmine flower protects the skin from premature aging. Teint Éclat Prodigieux® is suitable for all skin types and age groups and conveniently comes in 3 shades to suit all complexions: Éclat Naturel (Natural Radiance) , Éclat Doré (Golden Radiance) and Éclat Hâlé (Tanned Glow) . Directions: Use Teint Éclat Prodigieux® Éclat Naturel as a base to even skin tone then lightly dust the forehead, cheeks, nose, chin and neck area with Teint Éclat Prodigieux® Éclat Doré or Éclat Hâlé for a radiant glow. Suitable for use all year round. Simply apply to clean, make-up free skin in the morning. Normal skin, apply directly to skin. Dry and very dry skin, apply appropriate moisturizer first then dab on top. Net Weight: 30 ml/1.0 oz.

Nuxe Teint Eclat Prodigieux Moisturizing Tinted Cream - 01 Natural Radiance


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With its unique combination of botanical active ingredients and mineral pigments, this light and silky tinted moisturizer delivers a natural, healthy-looking glow with ‘barely there’ coverage. Skin tone is smooth and flawlessly even with a subtle glow and a ‘barely there’ look. Wild chicory root and gymnema sylvestre naturally provide sheer shades that blend easily into natural skin tone. Mineral powders and pigments help minimize imperfections for a flawless finish. Frangipani flower helps lock in moisture while jasmine flower protects the skin from premature aging. Teint Éclat Prodigieux® is suitable for all skin types and age groups and conveniently comes in 3 shades to suit all complexions: Éclat Naturel (Natural Radiance) , Éclat Doré (Golden Radiance) and Éclat Hâlé (Tanned Glow) . Directions: Use Teint Éclat Prodigieux® Éclat Naturel as a base to even skin tone then lightly dust the forehead, cheeks, nose, chin and neck area with Teint Éclat Prodigieux® Éclat Doré or Éclat Hâlé for a radiant glow. Suitable for use all year round. Simply apply to clean, make-up free skin in the morning. Normal skin, apply directly to skin. Dry and very dry skin, apply appropriate moisturizer first then dab on top. Net Weight: 30 ml/1.0 oz.

Nuxe Teint Eclat Prodigieux Moisturizing Tinted Cream - 02 Golden Radiance


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With its unique combination of botanical active ingredients and mineral pigments, this light and silky tinted moisturizer delivers a natural, healthy-looking glow with ‘barely there’ coverage. Skin tone is smooth and flawlessly even with a subtle glow and a ‘barely there’ look. Wild chicory root and gymnema sylvestre naturally provide sheer shades that blend easily into natural skin tone. Mineral powders and pigments help minimize imperfections for a flawless finish. Frangipani flower helps lock in moisture while jasmine flower protects the skin from premature aging. Teint Éclat Prodigieux® is suitable for all skin types and age groups and conveniently comes in 3 shades to suit all complexions: Éclat Naturel (Natural Radiance) , Éclat Doré (Golden Radiance) and Éclat Hâlé (Tanned Glow) . Directions: Use Teint Éclat Prodigieux® Éclat Naturel as a base to even skin tone then lightly dust the forehead, cheeks, nose, chin and neck area with Teint Éclat Prodigieux® Éclat Doré or Éclat Hâlé for a radiant glow. Suitable for use all year round. Simply apply to clean, make-up free skin in the morning. Normal skin, apply directly to skin. Dry and very dry skin, apply appropriate moisturizer first then dab on top. Net Weight: 30 ml/1.0 oz.

Nuxe Teint Eclat Prodigieux Moisturizing Tinted Cream - 03 Tanned Glow


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With its unique combination of botanical active ingredients and mineral pigments, this light and silky tinted moisturizer delivers a natural, healthy-looking glow with ‘barely there’ coverage. Skin tone is smooth and flawlessly even with a subtle glow and a ‘barely there’ look. Wild chicory root and gymnema sylvestre naturally provide sheer shades that blend easily into natural skin tone. Mineral powders and pigments help minimize imperfections for a flawless finish. Frangipani flower helps lock in moisture while jasmine flower protects the skin from premature aging. Teint Éclat Prodigieux® is suitable for all skin types and age groups and conveniently comes in 3 shades to suit all complexions: Éclat Naturel (Natural Radiance) , Éclat Doré (Golden Radiance) and Éclat Hâlé (Tanned Glow) . Directions: Use Teint Éclat Prodigieux® Éclat Naturel as a base to even skin tone then lightly dust the forehead, cheeks, nose, chin and neck area with Teint Éclat Prodigieux® Éclat Doré or Éclat Hâlé for a radiant glow. Suitable for use all year round. Simply apply to clean, make-up free skin in the morning. Normal skin, apply directly to skin. Dry and very dry skin, apply appropriate moisturizer first then dab on top. Net Weight: 30 ml/1.0 oz.

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BABOR Multi-Active Vitamin Fluid intensive active concentrate for the face containing vitamin A, provitamin B5, vitamin E and biotin (vitamin H) for the treatment of skin lacking in natural oils. Precious liposomes suffuse the skin, thus strengthening and vitalizing the skin. Directions: Apply in the evenings, after cleansing with Babor products. Shake the ampoule and place a tissue around its neck. With your other hand hold the ampoule firmly at the top and snap it open at the lower, colored ring. Pour the contents of the ampoule of BABOR Multi-Active Vitamin Fluid into the palm of your hand and smooth evenly over the face, neck and decolette. Pat gently into the skin, so the fluid absorbs quickly. Then apply cream. Net Weight: (14 Ampoules x 2 ml) Ingredients: Water (Aqua), PEG-7 Glyceryl Cocoate, Butylene Glycol, Panthenol, Helianthus Annuus (Sunflower) Seed Oil, Biotin, Tocopheryl Acetate, Retinyl Palmitate, Lecithin, Pantolactone, Tocopherol, C12-15 Pareth-12, Xanthan Gum, Fragrance (Parfum), Citric Acid, Limonene, Linalool, Citral, Alcohol Denat., Phenoxyethanol, Methylparaben, Ethylparaben, Propylparaben, Butylparaben, Isobutylparaben, Potassium Sorbate, Sodium Dehydroacetate, Beta-Carotene (CI 40800).

Sprayology Hair + Nail Tonic


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REVITALIZES HAIR AND NAILS Improve hair growth and say goodbye to brittle nails! No matter what ads promise, beautiful hair and nails begin from the inside - not the outside! Sprayology Hair + Nail Tonic makes it easy to get deep down results. This thoroughly modern two spray, three times a day sublingual treatment condenses centuries of holistic science to help you achieve lustrous hair and strong nails safely and naturally! Sprayology Hair + Nail Tonic combines homeopathic ingredients to promote more beautiful hair and nails while relieving such symptoms as dull slow growing hair, dry scalp and brittle nails. This innovative spray contains 15 natural ingredients such as vitamins B-2, B-5, and H (Biotin) to maintain proper hair growth; amino acids and HGH to help restore healthier hair, maintain lustrous hair growth and relieve dry scalp; Vitamin B-2 (Riboflavin) necessary for normal cell growth, helps maintain healthy hair, skin and nails; B-12 helps red blood cells carry oxygen and energy to our cells for healthier nails. Sprayology homeopathic sprays are FDA regulated and are made in an FDA approved laboratory. Directions: Hair + Nail Tonic is one of Sprayology adult only sprays. Simply spray twice under the tongue three times per day. If pregnant or nursing a baby, consult a health care professional before using. Keep out of the reach of children. Do not use if transparent seal around the spray bottle is broken or missing. Net Weight: 41 ml / 1.38 oz.


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RC model equipped with a park assistant

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