Electrostatic discharge protecting circuit
The invention relates to a static-discharge protection circuit, which comprises an I/O terminal to be protected and is characterized in that a power supply static-discharge bus terminal and a static-discharge protection component are also included, wherein, the static-discharge protection component...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
25.02.2009
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a static-discharge protection circuit, which comprises an I/O terminal to be protected and is characterized in that a power supply static-discharge bus terminal and a static-discharge protection component are also included, wherein, the static-discharge protection component comprises a transistor, one end of which is connected with the power supply static-discharge bus terminal and the other end is connected with the I/O terminal to be protected. The static-discharge protection circuit has the advantages as follows: (1) the situations that power supplies influence each other cannot occur no matter when in static-discharge or in normal operation by applying a provided static-discharge protection network configuration in a circuit with multiple power supplies and different voltages; (2) a low-voltage P-type metal oxide semiconductor is not used if a withstand voltage is requested by applying the provided static-discharge protection network configuration in the circuit with multiple powe |
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Bibliography: | Application Number: CN2007158976 |