20130182473 | AUTOMATIC VOLTAGE CONVERSION SYSTEM BASED ON A SINGLECHIP - The invention discloses an automatic voltage conversion system based on a singlechip, comprising a control unit, a power circuit unit, a transformer unit, a voltage sampling unit, an output protection unit and a voltage switching unit; wherein, the power circuit unit provides suitable working voltage for the whole circuit; the voltage sampling switching units are respectively connected to the control unit; the transformer unit is connected to the voltage switching unit; the output protection unit input is connected to the control unit, and output protection unit output is connected to the transformer unit; and the control unit, as a control system based on a singlechip, is used for controlling operation of both the voltage switching and output protection units after processing the signal gathered by the voltage sampling unit. The system can perform automatic voltage conversion, and high and low input voltage protection and provide transformer over temperature protection. | 07-18-2013 |