Advantages of Half bridge converter | disadvantages of Half bridge converter
This page covers advantages and disadvantages of Half bridge DC-DC converter, its Circuit and working operation. It mentions benefits or advantages of Half bridge converter and drawbacks or disadvantages of Half bridge converter.
What is Half bridge converter?
About DC to DC converter:
A dc-dc converter is electronic circuit. The main function of this circuit is to modify one potential difference(i.e. voltage) level to the another potential difference level. It is basically a voltage regulator consisting of switches, inductor and capacitor for power conversion. There are numerous applications of DC-DC converter.
DC-DC converters are divided into following types based on isolation between input and output circuits.
• Isolated DC-DC converter and Non-isolated DC-DC converter
Isolated DC-DC converters are further divided into following sub types.
• Fly-back • Forward • Half bridge • Full bridge • Push Pull
About Half bridge converter circuit working operation:
The figure depicts Half bridge converter circuit. It is a sort of DC-DC converter like fly back and forward choppers, which can furnish an output voltage more or less compared to input voltage and provide electrical separation by means of a transformer. It is more composite than a fly back or forward types. The Half Bridge (HB) chopper design will give large output energy and it will make use of unit that are lesser and reduced prices. The HB Control chopper has been newly used as a small output voltage conversion as a result of its excellent features where their efficiency is more or less ninety percent at less output voltage. From this converter statics and dynamic characteristics can be achieved. Where the DC voltage transfer proportion takes place in both discontinuous and continuous conduction forms, where the margin among both modes & level of current in the transformer can also be achieved.
Benefits or advantages of Half bridge converter
Following are the benefits or advantages of Half bridge converter:
➨Magnetic cores are small.
➨No gap of the magnetic path.
➨Less stray magnetic field
Drawbacks or disadvantages of Half bridge converter
Following are the drawbacks or disadvantages of Half bridge converter:
➨They are functioning at 1/2 the supply potential where the switching transistors are operational two times the collector current as in comparison with the basic push-pull scheme.
➨It is not suitable for current mode control.
Conclusion: In order to understand the advantages of Half bridge converter and disadvantages of Half bridge converter one has to understand Half bridge converter basics.