Navigation mark terminal power supply circuit with high stability and extensive adaptability power supply

A technology of power supply circuit and stability, which is applied in the field of remote measurement and monitoring power management system of water navigation aids, can solve the problems of large measurement error, unstable communication, performance degradation, etc., achieve good dynamic performance, improve anti-interference ability, and suppress high The effect of subharmonics

Inactive Publication Date: 2008-01-02
FUJIAN NORMAL UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

In practical applications, the power supply system of the terminal is easily affected by the pulse current of the flashlight, the cold wire effect of the lamp (the incandescent rotating lamp is more obvious), the voltage change of solar charging, and the instantaneous large current during GPRS / GSM communication, etc., resulting in performance Reduce such as unstable communication, large measurement error, etc.

Method used

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  • Navigation mark terminal power supply circuit with high stability and extensive adaptability power supply

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Embodiment Construction

[0013] In order to facilitate the understanding of the present invention, the power supply circuit of the navigation aid terminal will be further described in conjunction with FIG. 1 in the form of an embodiment.

[0014] The power input in Figure 1 is respectively connected to the input terminals of DC-DC-a module 1 and DC-DC-b module 2, and the regulated output of DC-DC-a module 1 supplies power to LDO-b6 and LDO-a4 at the same time. The regulated output of DC-DC-b module 2 supplies power directly to GPRS / GSM module 3, and its controlled terminal is connected to the main circuit through 8, and the regulated output of LDO-a4 supplies power to GPS module 5, and its controlled terminal is connected to the main circuit through 9 Connected to the main control circuit, the regulated output of LDO-b6 supplies power to the main control circuit 7 .

[0015] Transform the power input of the system into a stable voltage, and supply power to the main control circuit of the system throug...

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Abstract

The invention relates to a navigation mark power circuit with topology structure, stable power, and high application. The invention is characterized in that the power supply of function circuit uses LDO as controllable method, using high-efficiency DC-DC-a, DC-DC-b modules and two high-efficiency LDO-a, LDO-b, assisted with a GPRS/GSM communication module and a GPS module, via relative control circuits to form a navigation mark power circuit with high power stability and high application. The invention can insulate the effect of external power supply on the system power, with high power conversion, which can be used in accumulator power supply with various voltages. The invention can improve the interference resistance of terminal, restrain high-order harmonic wave generated in the DC-DC circuits, provide stable power to following circuit and confirm the accuracy of analogue-digit conversion, and support various working modes and low-power-consumption of terminal.

Description

technical field [0001] The invention relates to a power supply management system for remote measurement and monitoring of navigation aids on water, in particular to a navigation mark terminal power supply circuit with a topological structure and high power supply stability and wide adaptability. Background technique [0002] Every portable electronic device has a power management system responsible for converting various power sources to supply power to the electronic device's system load. Usually, these power supplies have a DC-DC circuit, which converts the externally changing DC voltage into a stable voltage suitable for the components used in electronic equipment. [0003] Aids to navigation terminals generally work in areas such as seas and rivers. They are mainly powered by batteries and charged by solar energy during the day. The power supply system of the terminal should not only have a wide voltage range, but also the power consumption of the system should be as low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/00G05B19/04B63B45/00
Inventor 吴允平李汪彪蔡声镇苏伟达陈聪慧吴进营卢宇刘华松
Owner FUJIAN NORMAL UNIV
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