In a switched-mode power supply, a switching regulator is used to convert electrical power efficiently. This type of power supply is sometimes also referred to as a switching mode power supply, or SMPS.
This power supply, like others, converts the voltage and current characteristics between, for example the mains power and the device, such as a personal computer or printer. Switching PSUs are usually used to regulate the voltage, where the output voltage is different from the input voltage. Switching PSUs frequently have isolation between input(s) and output(s) for functional and/or safety reasons.
The pass transistor switches very quickly between full off and on states, which therefore helps to minimise energy wastage, as the voltage regulation is achieved by varying the on off time, rather than having to dissipate the excess voltage, as would be the case with a linear power supply.
These types of power supply lend themselves to conditions where smaller size, lighter weight or more efficient operation are required. The technology has now advanced to the point where switched mode PSUs are more cost-effective than linear PSUs for most applications. DC input power supplies that require isolation between input and output have always been switched mode as there is no practical alternative to using transformers.
Here at Davtrend, we offer in house power supply design for most types of power supply, switched-mode power supply design being one of the more common types. We are particularly specialised in custom power supply design, and have been successfully designing for customers, for over thirty years!
Because we design, manufacture, test and support in house, this means that your design is totally in our hands. We do not push you towards an off the shelf design, and then leave you to find solutions to your remaining problems, but instead, pride ourselves in making sure we understand your exact specification requirements, and come up with appropriate designs.
Contact us now for a free, no obligation consultation.