CN101098077A - Navigation mark terminal power supply circuit with high stability and extensive adaptability power supply - Google Patents
Navigation mark terminal power supply circuit with high stability and extensive adaptability power supply Download PDFInfo
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- CN101098077A CN101098077A CNA2007100091513A CN200710009151A CN101098077A CN 101098077 A CN101098077 A CN 101098077A CN A2007100091513 A CNA2007100091513 A CN A2007100091513A CN 200710009151 A CN200710009151 A CN 200710009151A CN 101098077 A CN101098077 A CN 101098077A
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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
The present invention relates to water borne navigation aid facility telemonitoring power-supply management system, relate to the wide navigation mark terminal power circuit of a kind of power supply stability high-adaptability specifically with topological structure.
Background technology
Each portable electric appts all has a power-supply management system, is responsible for various power source conversion are given the system load power supply of electronic equipment.Usually, these power supplys all have a DC-DC circuit, and the direct voltage of external change is converted to a voltage stable, that meet each components and parts use in the electronic equipment.
Navigation mark terminal general work at sea, zone such as river, mainly by storage battery power supply, daytime, the power-supply system of terminal not only should have the voltage adaptation scope of broad by solar recharging, and the power consumption of system should be low as much as possible.In actual applications, influence such as instantaneous large-current when the power-supply system of terminal is subjected to change in voltage, the GPRS/GSM communication of cold silk effect (incandescent revolving modulator is more obvious), the solar recharging of pulse current, the modulator of photoflash lamp easily, it is big etc. as communication instability, measure error to cause performance to reduce.Therefore, how to improve the power adaptation of navigation mark terminal power-supply system, the focus and research difficult point that the reduction power consumption of terminal is this type systematic always.
Summary of the invention
For overcoming above-mentioned shortcoming, satisfy the needs that this part increases day by day, the invention provides a kind of power circuit that a kind of DC-DC module and LDO (low-dropout regulator spare) combine with topological structure.This circuit can realize that each module is independently-powered, the LDO of part of module and the controlled function of DC-DC, thereby widens the power supply accommodation of terminal, improves the stability of terminal power-supply system.
For achieving the above object, the technical solution used in the present invention is: adopting LDO with the power supply of functional circuit is controlled way, utilize two high efficiency DC-DC-a, DC-DC-b module and two s' LDO-a, LDO-b, be aided with the GPRS/GSM communication module, the GPS module constitutes the wide navigation mark terminal power circuit of a kind of power supply stability high-adaptability by correspondent control circuits.
DC-DC-a behind the access input power supply links to each other with LDO-a, LDO-b respectively,, powers to governor circuit by LDO-b to the GPS module for power supply by LDO-a.
DC-DC-b behind the access input power supply is directly to the GPRS/GSM module for power supply.
Adopt the DC-DC module, have higher power supply conversion efficiency on the one hand, widen the input power range of terminal, be applicable to the battery-driven application scenario of multiple voltage; LDO has advantages such as pressure drop is low, dynamic property is good, use LDO, not only can be independent the power supply of the bigger functional circuit of a plurality of power consumptions, reduce the interference between the circuit, but also can suppress the high order harmonic component that the DC-DC circuit produces, offer stable power of subsequent conditioning circuit, guaranteed analog-to-digital precision.
After adopting technical solution of the present invention, can power to the influence of system power supply by isolating exterior, improved the antijamming capability of terminal, for multiple mode of operation and the low-power consumption application of carrying out terminal are laid a good foundation.
Accompanying drawing and description of drawings
Fig. 1 is a circuit block diagram of the present invention.
Among Fig. 1, the 1st, the DC-DC-a module, the 2nd, controlled DC-DC-b module, the 3rd, the GPRS/GSM communication module, the 4th, to the controlled LDO-a power supply of GPS module for power supply, the 5th, GPS module, the 6th, to the LDO-b power supply of governor circuit power supply, the 7th, system master system circuit, the 8th, the DC-DC-b module controls line of GPRS/GSM module for power supply is given in control in the governor circuit, and the 9th, the LDO-a power control line of GPS module for power supply is given in control in the governor circuit.
Embodiment
For the ease of the understanding of the present invention, now in the mode of embodiment navigation mark terminal power circuit is described further in conjunction with Fig. 1.
Power supply input among Fig. 1 is connected respectively to the input of DC-DC-a module 1 and DC-DC-b module 2, LDO-b6 and LDO-a4 are given in the voltage stabilizing output power supply simultaneously of DC-DC-a module 1, GPRS/GSM module 3 is given in the voltage stabilizing output of DC-DC-b module 2 directly power supply, its controlled end is connected to main circuit by 8, GPS module 5 is given in the voltage stabilizing output power supply of LDO-a4, its controlled end is connected to governor circuit by 9, and governor circuit 7 is given in the voltage stabilizing output power supply of LDO-b6.
The power supply input of system is transformed into stable voltage, gives the system master circuit supply through the LDO-b6 Voltage stabilizing module, this loop keeps work for a long time after the power supply input is connected; 1 output of DC-DC-a module is given the power supply of GPS receiver module through LDO-a4 simultaneously, and LDO-a4 is output as controlled, and the system master circuit is opened LDO-a4 output according to the actual conditions needs; GPRS/GSM Modem module 3 power supplies that the master control power conversion that DC-DC-b module 2 power supplys are imported system becomes a stable power to give, DC-DC-b module 2 is output as controlled, whether the system master circuit gives GPRS/GSM Modem module 3 power supplies according to the output of actual conditions needs unlatching DC-DC-b module 2 with decision.
Claims (3)
1, the wide navigation mark terminal power circuit of a kind of power supply stability high-adaptability, it is characterized in that it is controlled way that this system adopts LDO with the power supply of functional circuit, utilize two high efficiency DC-DC-a modules (1), DC-DC-b module (2) and two LDO-a (4), LDO-b (6), be aided with GPRS/GSM communication module (3), GPS module (5) constitutes the wide navigation mark terminal power circuit of a kind of power supply stability high-adaptability by correspondent control circuits.
2, according to the wide navigation mark terminal power circuit of the described power supply stability high-adaptability of claim 1, it is characterized in that described power circuit DC-DC-a module (1) links to each other with LDO-a, LDO-b respectively,, power to governor circuit to the GPS module for power supply by LDO-a by LDO-b.
3,, it is characterized in that described power circuit inserts DC-DC-b module (2) behind the input power supply directly to the GPRS/GSM module for power supply according to the power circuit of the wide navigation mark terminal of the described power supply of claim 1 stability high-adaptability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100091513A CN101098077A (en) | 2007-06-25 | 2007-06-25 | Navigation mark terminal power supply circuit with high stability and extensive adaptability power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100091513A CN101098077A (en) | 2007-06-25 | 2007-06-25 | Navigation mark terminal power supply circuit with high stability and extensive adaptability power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101098077A true CN101098077A (en) | 2008-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100091513A Pending CN101098077A (en) | 2007-06-25 | 2007-06-25 | Navigation mark terminal power supply circuit with high stability and extensive adaptability power supply |
Country Status (1)
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| CN (1) | CN101098077A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176025A (en) * | 2011-02-18 | 2011-09-07 | 长江南京航道局 | Control method and system of GPS (Global Positioning System) beacon terminal |
| CN102299620A (en) * | 2010-06-24 | 2011-12-28 | 安凯(广州)微电子技术有限公司 | Voltage conversion circuit and handheld device |
| CN104202092A (en) * | 2014-09-18 | 2014-12-10 | 长芯盛（武汉）科技有限公司 | Receiving, transmitting and controlling three-in-one chip applicable to SFP (small form-factor pluggable) + high-speed photoelectric communication |
| CN104796464A (en) * | 2015-04-02 | 2015-07-22 | 南京邮电大学 | Multi-protocol conversion warning condition information remote transmission system and method based on MODBUS |
| CN105988498A (en) * | 2015-03-06 | 2016-10-05 | 展讯通信（上海）有限公司 | Low voltage self-adapting power source system |
| CN109587653A (en) * | 2019-01-11 | 2019-04-05 | 贵州远诚自控科技有限公司 | It is a kind of based between somewhere non-transformer and two places again be not easy to wiring signal synchronizing device |
-
2007
- 2007-06-25 CN CNA2007100091513A patent/CN101098077A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299620A (en) * | 2010-06-24 | 2011-12-28 | 安凯(广州)微电子技术有限公司 | Voltage conversion circuit and handheld device |
| CN102176025A (en) * | 2011-02-18 | 2011-09-07 | 长江南京航道局 | Control method and system of GPS (Global Positioning System) beacon terminal |
| CN104202092A (en) * | 2014-09-18 | 2014-12-10 | 长芯盛（武汉）科技有限公司 | Receiving, transmitting and controlling three-in-one chip applicable to SFP (small form-factor pluggable) + high-speed photoelectric communication |
| CN105988498A (en) * | 2015-03-06 | 2016-10-05 | 展讯通信（上海）有限公司 | Low voltage self-adapting power source system |
| CN105988498B (en) * | 2015-03-06 | 2017-11-10 | 展讯通信（上海）有限公司 | A kind of adaptive power-supply system of low-voltage |
| CN104796464A (en) * | 2015-04-02 | 2015-07-22 | 南京邮电大学 | Multi-protocol conversion warning condition information remote transmission system and method based on MODBUS |
| CN109587653A (en) * | 2019-01-11 | 2019-04-05 | 贵州远诚自控科技有限公司 | It is a kind of based between somewhere non-transformer and two places again be not easy to wiring signal synchronizing device |
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