What is the role of the DCDC converters?(3)
Green module power
The rapid development of computer technology has led human beings into the information society, and also promoted the rapid development of module power technology. In the 1980s, computers fully adopted switching power supplies, taking the lead in completing the replacement of computer power supplies. Then switching power supply technology has entered the field of electronics and electrical equipment one after another. With the development of computer technology, green computer and green module power supply are proposed. Green computers generally refer to personal computers and related products that are harmless to the environment. Green power refers to high-efficiency power-saving power sources related to green computers. According to the "Energy Star" plan of the United States Environmental Protection Agency on June 17, 1992 If the power consumption of a small personal computer or related peripheral equipment in the sleep state is less than 30 watts, it meets the requirements of a green computer. Improving power efficiency is the fundamental way to reduce power consumption. For a 200-watt switching power supply with an efficiency of 75%, the power supply itself consumes 50 watts of energy.
Input protection circuit General wide range input Marine boost voltage power supply module supply products use built-in filters, which can meet the requirements of general Marine boost voltage power supply applications. If a more demanding power system is required, DCDC converters the input filter network should be added. Either LC or π can be used but care should be taken to choose a smaller inductance and larger capacitance.
In order to prevent the transient high voltage damage of the wide range input Marine boost voltage power supply module supply, it is recommended that the user connect the transient absorption diode to the input terminal, and cooperate with the fuse to ensure that the module is within the safe input voltage range. In order to reduce the common mode noise, Y (Cy) can be increased and several capacitors nf high frequency capacitors are generally selected. R is a fuse, D is a protection diode, and D is a transient absorption diode (P6KE series).