Multifunctional Power Sequencer and Monitor Chip
A sequencer, multi-functional technology, applied in the direction of data processing power supply, measuring device, measuring flow/mass flow, etc., can solve the problem of no protection mechanism, load circuit influence, low integration, etc., to ensure accuracy and sensitivity high degree of functional integration, ensuring comprehensive effects
Active Publication Date: 2022-07-05
NO 47 INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology
In this way, the basic power supply sequence of the power supply can usually be solved, but it cannot guarantee whether the voltage and current of the power supply are normal
For example, when a certain power supply chip is working abnormally, other power supplies will still be supplied to the load circuit, which cannot guarantee the correct timing of power supply. unpredictable effects
In addition, in the existing technical solutions, since discrete components are used, the space occupied by the layout is relatively large, and the integration degree is not high.
Moreover, in the existing technical solutions, even if the abnormality of the sequence is monitored, it is basically a single parameter monitoring method
Method used
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Embodiment 1
[0040] see figure 1 , the figure is a schematic diagram of the overall function of the multifunctional power sequencer and the monitor provided by the present invention.
[0041] It can be clearly seen from this figure that the entire example is mainly composed of six parts, namely, the storage unit 100 , the general interface 200 , the controller module 300 , the sequencer 400 , the sequence monitor 500 , and the error handling module 600 .
[0042] The storage unit 100 is mainly used to store the configuration information and error information of the system. There are many kinds of configuration information of the system, such as voltage amplitude threshold information, current amplitude threshold information, time threshold used for error detection, and sequence start of the sequencer. mode, the error mode of the sequence, the delay time of the channel closing, the error message after the sequence generates an error, etc.
[0043] The general interface 200 is mainly an int...
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The invention discloses a multifunctional power sequence generator and a monitor chip. The chip can generate sequence power according to the configuration to solve the power-on sequence problem of different systems. At the same time, the chip can monitor the state of the power supply. If there is a problem, take corresponding actions according to the configuration. The modes of the power sequencer include power-on delay start, delay start based on other channels, startup based on the voltage and current of other channels reaching the standard, etc. The power supply monitor can monitor whether the power supply starts normally, whether the power supply has sudden alarms and continuous alarms, and whether the power supply current is normal. When the power supply voltage and current are abnormal, the chip can perform corresponding abnormal processing according to the configuration. This application integrates the power sequencer and the monitor into a single chip, which is small in size and complete in function, and is suitable for power supply systems of various sequence power sources. The design of abnormal voltage and current processing can effectively improve the stability of the user system.
Description
technical field [0001] The invention relates to the technical field of a power sequencer and a monitor, in particular to a chip of a power sequencer and a monitor. Background technique [0002] In the working process of some systems, there are very strict requirements on the power-on sequence of each module. The precise power-on sequence will ensure the stable operation of the system. At the same time, during the working process of the system, the stability of the power supply is very important to the system. The stability of the power supply usually includes whether the power supply voltage is normal and whether the power supply current is normal. Since different load modules have different tolerance ranges for the power supply voltage and power supply current, usually, the power supply voltage needs to be considered according to the actual situation of the load. and the range of supply current exceeding the standard. In order to ensure the authenticity of the power suppl...
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IPC IPC(8): G06F1/26G06F1/28
CPCG06F1/26G06F1/28
Inventor 初振东刘泽栋张彬李威李鑫彪牛英山徐宏祥
Owner NO 47 INST OF CHINA ELECTRONICS TECH GRP