Before making this connection the voltage between Vin and Vout was undefined, this connection now provides a common potential to which each side is now related. This fact can be used to shift or invert the output relative to another point in a circuit.įor example, Figure 2 shows how connecting the +Vout terminal to the input ground terminal will force the output ground down below input ground by an amount equal to Vout. However, a floating output may have one of its terminals connected to another circuit node to fix it to that voltage. Isolated outputs, while having a fixed voltage between output terminals, don't have a defined or fixed voltage relative to voltage nodes in circuits from which they've been isolated, and are said to be floating. Floating Outputs and Level ShiftingĪnother benefit to isolated converters is a floating output. Circuits that are sensitive to noise can benefit from this by having their ground broken up and separated from noisy circuits that could cause problems.
#ISOLATED CUK CONVERTER PLUS#
![isolated cuk converter isolated cuk converter](https://ars.els-cdn.com/content/image/3-s2.0-B9780120884797500328-f14-02-9780120884797.gif)
A result of isolation is that each of the isolated circuits has its own return or ground reference. Galvanic isolation (usually simplified to just isolation) is the physical and electrical separation between one section of a circuit and another. For those not familiar with power supplies this leads to additional questions: What are the benefits of isolated vs non-isolated power supplies? And how do I know which one I need for my application? Isolation Basics A non-isolated power converter has a single circuit in which current can flow between the input and output. In short, an isolated power converter isolates the input from the output by electrically and physically separating the circuit into two sections preventing direct current flow between input and output, typically achieved by using a transformer. What's the Difference Between Isolated and Non-Isolated Power Supplies?