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Power clamp electrostatic discharge circuit with adjustable trigger voltage, chip and communication terminal

An electrostatic discharge circuit and trigger voltage technology, applied in emergency protection circuit devices, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve problems such as large workload, and achieve high reliability. Effect

Inactive Publication Date: 2017-06-20
VANCHIP TIANJIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, different power supply clamp ESD circuits need to be customized according t

Method used

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  • Power clamp electrostatic discharge circuit with adjustable trigger voltage, chip and communication terminal
  • Power clamp electrostatic discharge circuit with adjustable trigger voltage, chip and communication terminal
  • Power clamp electrostatic discharge circuit with adjustable trigger voltage, chip and communication terminal

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Embodiment Construction

[0027] The technical content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1As shown, the power supply clamp electrostatic discharge circuit with adjustable trigger voltage provided by the present invention includes a timer 1 , a trigger 3 , a latch 4 , and a discharge circuit 5 . Wherein, the output end of the timer 1 is connected with the input end of the flip-flop 3, meanwhile, a first inverter 2 is also arranged between the output end of the timer 1 and an input end of the latch 4, and the flip-flop 3 The output end of the latch 4 is connected to the other input end of the latch 4, and the output end of the latch 4 is connected to the bleeder circuit 5. One end of the first resistor R1 is respectively connected to the output end of the flip-flop 3 and the other input end of the latch 4 , and the other end of the first resistor R1 is respectively connected t...

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PUM

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Abstract

The invention discloses a power clamp electrostatic discharge circuit with an adjustable trigger voltage, a chip and a communication terminal. The power clamp electrostatic discharge circuit comprises a timer, a trigger, a latch and a bleeder circuit, wherein an output end of the timer is connected with an input end of the trigger; a first phase inverter is arranged between the output end of the timer and one input end of the latch; an output end of the trigger is connected with the other input end of the latch; an output end of the latch is connected with the bleeder circuit; one end of a first resistor is connected with the output end of the trigger and the other input end of the latch respectively; and the other end of the first resistor is connected with the output end of the latch and the bleeder circuit respectively. The power clamp electrostatic discharge circuit has the adjustable trigger voltage, and electrostatic current can be discharged rapidly to realize comprehensive protection of circuit elements.

Description

technical field [0001] The invention relates to a power clamp electrostatic discharge circuit with adjustable trigger voltage, and also relates to an integrated circuit chip including the power clamp electrostatic discharge circuit and a corresponding communication terminal, belonging to the technical field of radio frequency integrated circuits. Background technique [0002] Most RF power amplifiers are manufactured based on SiGe BiCMOS technology, and their operating voltage range varies from 3V to 6V. In battery-powered RF systems, envelope tracking is often used to provide the best RF performance while reducing its power consumption. When using the envelope tracking method, the envelope tracking supply voltage is continuously adjusted and can provide the required energy at a specific moment, avoiding supply voltage spikes while obtaining peak efficiency. Using this RF modulation technique, the rise time of the peak is within 20ns, enabling the peak voltage to reach the ...

Claims

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Application Information

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IPC IPC(8): H02H9/04H03F1/30
CPCH02H9/046H02H9/042H03F1/303
Inventor 白云芳林升
Owner VANCHIP TIANJIN TECH