Basic Half Bridge Converter Circuitt Design

The most popular type of high power converter is the half bridge circuit illustrated in Figure 0-7.

Figure 6-7. Half Bridge Converter Circuit

The half bridge converter has several advantages over the push-pull circuit. First, the midpoint between the capacitors (point A) can be charged to VI/2. This allows the use of transistors with lower breakdown voltage. Second, because the primary is driven in both directions (push-pull), a full-wave rectifier and filter are used which allows the transformer core to be more effectively utilized.