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Biasing circuit for generating biased output

一种偏置电路、输出电路的技术，应用在多个输入和输出脉冲电路、调节电变量、仪器等方向，能够解决电路消耗、电路难以控制等问题

Active Publication Date: 2017-12-15
SILICON LAB INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these circuits may consume an undesired amount of power to provide an appropriate level of bias signal
Additionally, these circuits can be difficult to control, especially as the operating requirements of the underlying integrated circuit vary

Method used

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  • Biasing circuit for generating biased output
  • Biasing circuit for generating biased output
  • Biasing circuit for generating biased output

Examples

Experimental program
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Embodiment Construction

[0023] refer to figure 1 , which shows a high-level block diagram of a bias circuit according to one embodiment. Such as figure 1 As shown in the diagram, bias circuit 10 may provide bias sources for various client circuit blocks of a given IC, such as a microcontroller unit (MCU) or other IC including an MCU or other controller circuit. Low power high accuracy generator. In various embodiments, bias circuit 10 may be used to provide an accurate / low noise bias output (eg, current) to client circuitry. These circuits can use such bias outputs to bias various circuit types (such as comparators, amplifiers, etc.) and / or to generate accurate current / voltage references.

[0024] Generally, the bias circuit 10 is configured to receive a power supply voltage Vsupply which is sufficient to operate the bias circuit 10 when receiving the power supply voltage at a given level after the power is turned on, so that a plurality of bias outputs Bias can be generated. 0 -Bias n . In dif...

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PUM

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Abstract

In one aspect, an apparatus includes a ready circuit to output a ready indicator when a supply voltage provided to the ready circuit and a voltage regulator is sufficient to operate the voltage regulator. In turn, the voltage regulator is to receive the supply voltage and output a regulated voltage, receive a first current from the ready circuit and control the regulated voltage based on the first current when the ready indicator is inactive. The apparatus further includes a bias circuit to receive the regulated voltage and generate one or more bias currents, which may be provided to an output circuit to output one or more bias outputs to one or more client circuits therefrom.

Description

Background technique [0001] Many integrated circuits (ICs) include multiple internal circuits to perform various functions. For certain circuits to function properly, components of the circuits, such as transistors and other electrical components, may require bias currents and / or voltages. Typically, integrated circuits include internal bias generators to generate such bias signals. However, these circuits may consume an undesired amount of power to provide an appropriate level of bias signal. Additionally, these circuits can be difficult to control, especially as the operating requirements of the underlying integrated circuit change. Contents of the invention [0002] In one aspect, an apparatus includes a ready circuit to output a ready indicator when a supply voltage supplied to the ready circuit and the voltage regulator is sufficient to operate the voltage regulator. In turn, a voltage regulator is configured to receive the supply voltage and output a regulated volta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F3/26
CPCG05F3/262G05F1/463H03K5/24
Inventor P·科内奇尼D·彼得森
Owner SILICON LAB INC