12v 2a power supply design

Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. If I haven't scared you off, then the place to start your project is at Fairchild's Power Supply WebDesigner.
You will tell it your design parameters, and it will give you suggested circuitry and components.
If you are using Fairchild's IC using their application note is great way to learn how flybacks work.
Changing these type of circuits, without knowing exactly what you are doing, is really dangerous. Not the answer you're looking for?Browse other questions tagged power-supply voltage-regulator switch-mode-power-supply or ask your own question.
Is there any truth to interpreting definition of a second as corresponding to oscillations? Why did Queen Amidala decline a Senate investigation of her accusations against the Trade Federation? Youa€™ll see an estimated delivery date - opens in a new window or tab based on the sellera€™s dispatch time and delivery service.

This item will be sent through the Global Shipping Programme and includes international tracking. Items delivered internationally may be subject to customs processing depending on the item's declared value. Contact Customer Service to initiate the return process within 7 days of the receipt of your items. Please note that we cannot process any products that are returned without our prior knowledge. Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item. By clicking Confirm bid, you are committing to buy this item from the seller if you are the winning bidder and have read and agree to the Global Shipping Programme terms and conditions - opens in a new window or tab.
By clicking 1 Click Bid, you are agreeing to buy this item from the seller if you're the winning bidder. Any failure somewhere will result in blowing up of the mosfet (or internal mosfet if you are using one). Delivery times may vary, especially during peak periods and will depend on when your payment clears - opens in a new window or tab.

If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. If you wish to return any or all parts of your order, you will need to contact our customer service via email for return permission and the RMA#. Find out more about your rights as a buyer - opens in a new window or tab and exceptions - opens in a new window or tab.
By clicking Confirm bid you commit to buy this item from the seller if you are the winning bidder. Import charges previously quoted are subject to change if you increase you maximum bid amount. Converting 5V to 12V is a turns ratio issue on the transformer and premier magnetics may have a transformer that exactly fits the bill. If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable.

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