I have a toshiba satellite laptop and trying to connect it to my LCD HDTV, i got the VGA to DVI to HDMI cable adapter and plugged that into my tv but it wont come up on the tv.

Most electronics run on direct current (DC) power. This is the type of power that batteries place out, and it is straightforward to deal with when engineering electronics. But, the power that runs through power lines and homes is alternating current (AC) power. Alternating in this case refers to the fact that AC power switches direction back and forth quickly, flowing in both directions along an electrical line. This bidirectional flow would hurt DC equipment, which is only capable of handling power flowing in one direction, thus the need for an AC/DC adapter. take for “hp Pavilion DV6000 AC Adapter” example: Hp Pavilion DV6000 AC Adapter 90W 19V 4. 74A Bullet shape tip Description: http://www. udtek. com/hp-pavilion-dv6000-ac-adapter-90w-19v-474a-bullet-shape-tip-p-4822. html Input: AC100-240V (worldwide use) Output: DC19V 4. 74A Power: 90W Connecter size (Bullet shape tip): Internal Diameter: 1. 6mm External Diameter: (4. 75+4. 2)mm Item Includes: AC Adapter and Power Cord. Physical Conversion To convert alternating current into direct current, an AC/DC adapter makes use of an electronic component called a rectifier. This component takes an electrical input and only allows power to flow in one direction out of it, effectively making DC power. Rectifiers are only capable of handling a certain level of electrical current before they are irreparably hurt, so make sure to check your power adapters before bringing them to location with different levels of AC power. For example, do not attempt to use adapters rated only for U. S. (110 volt) electricity in Europe, where electricity is typically 220 volts. Failure to take this into account could result in hurt to your power adapter or electronic devices. Voltage and Amperage Unlike AC power, which is well standardized for voltage and amperage within a country, DC power required for a piece of electronic equipment can vary wildly. Make sure not to use a AC/DC adapter on your electronics that is not rated for a different voltage, as you run the risk of damaging your equipment. Using a power adapter rated for a higher amperage than your electronic equipment is safe, as the equipment will only draw the necessary current.

This is one of the best deals we’ve seen on a HP ac adapter for laptops. This laptop ac adapter can be found for around $20 on most retailers’ websites. This HP Pavilion DV5000 AC Adapter claims to be universal (claims which are support by most who reviewed this product) by including eight different connection tips. The tips are supposed to be compatible with most laptops and notebooks. But, as always, it’s a excellent thought to call the supplier before purchasing any HP Pavilion DV5000 AC Adapter to make sure it will work with your laptop, notebook, or netbook. There are many brands available in the market for laptop ac adapter. Acer, Dell, Sony, Samsung, Gateway etc, are some of the leading names. HP Pavilion DV5000 AC Adapter is coming in modern designs with value added features. The size and style of its plug also keep on changing. Thus, we can say that HP AC adapter is not only an accessory but it is fashion statement too. An HP Pavilion DV5000 AC Adapter is an electronic device that produces a specific direct current from the mains with an alternating Current. Direct Current has a constant flow of electric charge in one direction and flows from low to high potential. Connecting an electronic device to laptop AC adapter is unsuitable and perilous due to the varying magnitude and direction of the current. HP Pavilion DV5000 AC Adapter Features/Specifications :  (http://www. usadapter. com/Laptop-HP-Adapter/HP-Pavilion-DV5000-AC-Adapter. html) Input: AC100-240V (worldwide use)Output: DC18. 5V 3. 5APower: 65WConnecter size:Internal Diameter: 1. 7mm External Diameter: 4. 8mmItem Includes: AC Adapter and Power Cord. Groundbreaking new Replacement Product, works as genuine parts, 100% OEM Compatible!!Full 12 months warranty!!Fit Laptop Part C359A, 402018-001, 101898-001. 101880-001, 146594-001, 159224-001, 163444-001, 179725-003, A265, AC-C14, 285288-001, LPACQ3, PA-1651-02C, PP1006, PPP002D, P-0K065B13, 239427-001, 239427-003, 239704-001, 239705-001, 265602-0013, 87661-001, 209126-001, 209124-001, 120765-001, 338136-001, 386315-002, 159224-002,239704-291,371790-001,387661-001,403810-001, 409843-001, 417220-001, HP-OK065B13, DC359A#ABA, DC395A#ABA, DC395A#ABB, DL606A#ABAHP Pavilion DV5000 AC Adapter Warranty12 months warranty See more information on:   http://www. usadapter. com