Patent ID: 7937511
Filing Date: 2011-05-03
Classification: G06F

Abstract:
1. A burning apparatus for burning data stored in a burning machine to a chip, comprising: a power transforming circuit for providing a working voltage to the chip; a first connector for receiving parallel burning data and control signals from the burning machine; a data transforming circuit for transforming the parallel burning data received from the burning machine into serial data and sending the transformed serial data to the chip; a second connector connected to the chip for sending the burn data output from the data transforming circuit to the chip; and an isolation circuit directly connected between the data transforming circuit and the second connector for preventing interference between the burning machine and the chip; wherein the isolation circuit comprises a first N-channel MOSFET and a second N-channel MOSFET, a gate of the first N-channel MOSFET is connected to a first voltage source via a first resistor, a drain of the first N-channel MOSFET is connected to a second voltage source via a second resistor, and a source of the first N-channel MOSFET is connected to ground; a gate of the second N-channel MOSFET is connected to the drain of the first N-channel MOSFET, a drain of the second N-channel MOSFET is connected to a third voltage source via a third resistor, and a source of the second N-channel MOSFET is connected to ground.