Split Rail Power Supply From A Single Rail Supply

Dual power supply rails are very useful when working with op amps as this type of design provides greater stability.

Split rail power supply from a single rail supply.

Watch this video and you ll know what to do. The iec 60950 1 international safety standards for information technology equipment states that no single output wire in computer power supplies can carry more than 240w. The power dissipation in all dc dc converter designs should always be computed as ics cannot usually deliver maximum output power under all conditions. Power supplies that have only one ocp circuit are called single rail while the power supplies that have more than one ocp circuits are referred to multiple rail.

The negative voltage rail is connected to the exposed pad of this ltc3388 3 and must be isolated from. A bipolar supply provides the best use of the analog to digital converter s adc dynamic range enables rail to rail amplification isolates the analog signal from ground noise and offers many other benefits. This approach can be used when bipolar supplies are required from a single supply input provided the load currents are modest. The positive voltage rail is created by configuring one ltc3388 3 in its standard buck topology while the negative voltage rail is created with a second ltc3388 3 by grounding the v out connection and using the gnd pin as the negative voltage rail.

In this post i ll describe three ways to split a single supply rail into a bipolar voltage rail. Easy split voltage power supply.