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output driver

An output driver, output node technology, applied in electrical components, electronic switches, reliability improvement modification, etc.

Active Publication Date: 2015-10-21
TAIWAN SEMICON MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some legacy systems require a higher output voltage from the gate than can be tolerated by the transistor forming the gate

Method used

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Embodiment Construction

[0031] figure 1 is a schematic view of the output driver 100 according to the embodiment. The output driver 100 includes a voltage clamping protection device 105 , an intermediate protection device 110 and a control switch 115 arranged in series and connected in sequence from a load 120 to a ground supply line 125 . The output driver 100 also includes an output line 130 connected to the connection point between the load 120 and the voltage clamp protection device 105 . Load 120 is disposed between output driver 100 (via voltage clamp protection device 105 ) and positive supply line 135 .

[0032] The voltage clamp protection device 105 includes a protection device 140 and a voltage clamp 145 disposed across, ie connected to, the source and drain of the protection device. The drain of the protection device 140 is connected to the output line 130 and the source of the protection device is connected to the drain of the intermediate protection device 110 . The gate of the prote...

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Abstract

An output driver having a power supply line, a control switch, at least one protection device and at least one voltage clamp device. The control switch disposed between the at least one protection device and the power supply line an output line. The at least one protection device disposed in a series arrangement between the output line and the control switch. The at least one voltage clamp device disposed across a corresponding protection device and adapted to clamp a voltage across the protection device below a predetermined threshold voltage.

Description

technical field [0001] The present invention relates to an output driver, and more particularly, the present invention relates to an output driver having an input node and an output node. Background technique [0002] As semiconductor circuits are made smaller, the operating voltages of transistors are also scaled down to prevent transistor breakdown. As a result, the gate and driver output voltages are also reduced. However, some legacy systems require a higher output voltage from the gate than can be tolerated by the transistor forming the gate. Therefore, circuits with additional transistors arranged in cascade are used to convert higher output voltages. Contents of the invention [0003] Aiming at the defects in the prior art, the present invention provides an output driver with an input node and an output node, the output driver includes: a control switch connected between the power line and the output node, the control switch sets selectively achieving a current p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K19/003
CPCH03K19/018521H03K17/102
Inventor 葛振廷简骏业
Owner TAIWAN SEMICON MFG CO LTD