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实用新型
CN209545253U 一种便携变电运维终端电路结构 有权

一种便携变电运维终端电路结构
摘要：
本实用新型公开了一种便携变电运维终端电路结构，包括测试芯片、切换电路、保护/变换电路一、保护/变换电路二、IIC转IO模块、隔离芯片一、隔离芯片二和CPU模块，保护/变换电路一通过切换电路连接到测试芯片，保护/变换电路二连接到测试芯片，测试芯片连接有IIC转IO模块和隔离芯片二，IIC转IO模块通过隔离芯片一连接到CPU模块，隔离芯片二连接到CPU模块，切换电路还连接到IIC转IO模块与测试芯片间，保护/变换电路一用于测电压、电阻、二极管和电容，保护/变换电路二用于测电流。本实用新型采用测试芯片测试，摆脱了传统通过旋钮来控制，更加的智能、无机械操作失误，通过CPU模块控制显示，显示界面会更加的灵活、多样、丰富、人性化。(ESM)同样的发明创造已同日申请发明专利
摘要（英）：

The utility model discloses a portable power transformation operation and maintenance terminal circuit structure. The device comprises a test chip, a switching circuit, a protection/conversion circuitI, a protection/conversion circuit II, an IIC-to-IO module, an isolation chip I, an isolation chip II and a CPU module, the protection/conversion circuit I is connected to the test chip through the switching circuit; the protection/conversion circuit II is connected to the test chip; the test chip is connected with an IIC-to-IO module and a second isolation chip. Wherein the IIC-to-IO module is connected to the CPU module through the isolation chip I, the isolation chip II is connected to the CPU module, the switching circuit is also connected between the IIC-to-IO module and the test chip, the protection/conversion circuit I is used for testing voltage, resistance, diode and capacitor, and the protection/conversion circuit II is used for testing current. According to the utility model, the test chip is used for testing, the traditional control by a knob is eliminated, the intelligent control is realized, no mechanical operation error exists, the display is controlled by the CPU module, and the display interface is more flexible, diversified, rich and humanized.

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