The protection circuit of IBA base power supply system

In many computer and communication applications, non-isolation load point (niPOL) Intermediate Bus Architecture (IBA) converter is replacing continuously the common distribution and central power supply system. The key drive force of the trend includes: the increase of the system power, higher output current, more strict regulated requirements and lower system cost, many IBA/niPOL solutions can meet these requirements. However,this solution don't have the protection mechanism included in the previous common solutions. In the power supply system design, over-voltage protection (OVP) and over-temperature protection is very expectable.