CN202696464U - High-efficiency direct current/direct current (DC/DC) converter system - Google Patents
High-efficiency direct current/direct current (DC/DC) converter system Download PDFInfo
- Publication number
- CN202696464U CN202696464U CN 201220276380 CN201220276380U CN202696464U CN 202696464 U CN202696464 U CN 202696464U CN 201220276380 CN201220276380 CN 201220276380 CN 201220276380 U CN201220276380 U CN 201220276380U CN 202696464 U CN202696464 U CN 202696464U
- Authority
- CN
- China
- Prior art keywords
- unit
- converter
- charge
- electrically connected
- comparator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model discloses a high-efficiency direct current/direct current (DC/DC) converter system, which comprises a DC/DC converter unit, a charging and discharging unit, a loading unit and a comparator unit, wherein the output end of the DC/DC converter unit is electrically connected with the charging and discharging unit and the loading unit respectively; the input end of the DC/DC converter unit is connected with the output end of the comparator unit; the in-phase input end of the comparator unit is connected with the output end of the DC/DC converter unit; the invert input end of the comparator unit is electrically connected with reference voltage; and the power input end of the comparator unit is connected with an external level signal. By the high-efficiency DC/DC converter system, voltage of the loading unit end is compared with the reference voltage, so that a DC/DC converter is controlled to be switched on and switched off; furthermore, when the DC/DC converter is switched on, the charging and discharging unit can be charged, so that the charging and discharging unit can still supply power to the loading unit in a dormancy mode of the DC/DC converter; and therefore, an aim of improving the efficiency of the DC/DC converter is fulfilled under different loads.
Description
Technical field
The utility model relates to the electrical power conversion field, especially relates to a kind of high efficiency DC/DC changer system.
Background technology
Each portable electric appts has a power-supply management system, and responsible various power supplys are changed to the system load of electronic equipment powered.Usually these power supplys have a DC/DC converter, and the direct voltage of external change is converted to a voltage stable, that meet each components and parts use in the electronic equipment.
When existing DC/DC converter externally had heavy load and need to provide supply power voltage, this moment, the normal operation of DC/DC converter can reach higher operating efficiency; When the load of DC/DC converter outside was very little, this moment, the DC/DC converter was in sleep mode state, and operating efficiency is lower, even is lower than LDO(low-dropout regulator spare) operating efficiency; If externally in the very little situation of load, the operating efficiency of DC/DC converter is improved, need to increase the actual performance that existing DC/DC converter be improved or be reduced to complicated control structure on the basis of existing DC/DC converter circuit.
Summary of the invention
The utility model is to provide a kind of high efficiency DC/DC changer system that improves DC/DC converter usefulness in the different loads situation for the defective that the above-mentioned background technology exists.
For achieving the above object, the utility model discloses a kind of high efficiency DC/DC changer system, it comprises the DC/DC power converter cells, charge/discharge unit, load unit and comparator unit, described DC/DC power converter cells output, charge/discharge unit and load unit are electrically connected respectively, described DC/DC power converter cells input and described comparator unit output are electrically connected, described comparator unit in-phase input end and described DC/DC power converter cells output are electrically connected, described comparator unit inverting input is electrically connected with reference voltage, and described comparator unit power input connects outside level signal.
Further, described DC/DC power converter cells output, charge/discharge unit positive input terminal and load unit positive input terminal are electrically connected respectively, and described charge/discharge unit negative input end and load unit negative input end be ground connection respectively.
Further, described DC/DC power converter cells comprises DC/DC converter and inductance, described DC/DC converter input and described comparator unit output are electrically connected, described DC/DC converter output terminal is connected in inductance one end, the corresponding described DC/DC power converter cells output of the described inductance other end.
Further, described charge/discharge unit is comprised of electric capacity, the corresponding described charge/discharge unit positive input terminal of described electric capacity one end, the corresponding described charge/discharge unit negative input end of the described electric capacity other end.
Further, described comparator unit in-phase input end is inputted described load unit terminal voltage.
In sum, a kind of high efficiency DC/DC changer system of the utility model is by being electrically connected with comparator unit between DC/DC power converter cells and load unit, the load unit terminal voltage is compared with the reference voltage that the inverting input of comparator unit is connected, control the switching of DC/DC converter with this; When DC/DC converter opening, charge/discharge unit is charged simultaneously, still can power as load unit to guarantee DC/DC converter charge/discharge unit under sleep pattern, reach the usefulness that in the different loads situation, improves the DC/DC converter.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model embodiment.
Embodiment
For further understanding feature of the present utility model, technological means and the specific purposes that reach, function, below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
As shown in Figure 1, the high efficiency DC/DC changer system of the utility model comprises DC/DC power converter cells 10, charge/discharge unit 20, load unit 30 and comparator unit 40, described DC/DC power converter cells 10 outputs, charge/discharge unit 20 positive input terminals and load unit 30 positive input terminals are electrically connected respectively, described charge/discharge unit 20 negative input ends and load unit 30 negative input ends are ground connection respectively, described DC/DC power converter cells 10 comprises DC/DC converter 11 and inductance 12, described DC/DC converter 11 inputs and described comparator unit 40 outputs are electrically connected, described DC/DC converter 11 outputs are connected in inductance 12 1 ends, corresponding described DC/DC power converter cells 10 outputs of described inductance 12 other ends.
Described charge/discharge unit 20 forms corresponding described charge/discharge unit 20 positive input terminals of described capacitor C one end, corresponding described charge/discharge unit 20 negative input ends of the described capacitor C other end by capacitor C; Described capacitor C is chosen suitable size as required, to guarantee DC/DC converter 11 under sleep pattern, still can guarantee to be load unit 30 power supplies, and then guarantee the raising of DC/DC converter 11 in the sleep pattern operating efficiency.
Described comparator unit 40 is hysteresis comparator, and described comparator unit 40 in-phase input ends and described DC/DC power converter cells 10 outputs are electrically connected, in order to input described load unit 30 terminal voltage Vout; Described comparator unit 40 inverting inputs are electrically connected with reference voltage V ref, and described comparator unit 40 power inputs are connected with outside level signal EN_SYS.
During the utility model work, load unit 30 is the heavy load state, and at this moment, outside level signal EN_SYS is low level, and comparator unit 40 is not worked, and comparator unit 40 outputs are low level, and DC/DC converter 11 is in normal operating conditions; When load unit 30 is little load condition, outside level signal EN_SYS is high level, comparator unit 40 is opened, if this moment, load unit 30 terminal voltage Vout were higher than reference voltage V ref, comparator unit 40 outputs are high level, and then control DC/DC converter 11 internal circuits and close, power by 20 pairs of load units 30 of charge/discharge unit; If this moment, load unit 30 terminal voltage Vout were less than reference voltage V ref, comparator unit 40 outputs are low level, and then control DC/DC converter 11 internal circuits are opened, and charge for charge/discharge unit 20, by comparing load unit 30 terminal voltage Vout and reference voltage V ref, reach the purpose of periodic duty.
In sum, a kind of low cost of the utility model, high efficiency DC/DC converter 11 systems are by being electrically connected with comparator unit 40 between DC/DC power converter cells 10 and load unit 30, load unit 30 terminal voltages are compared with the reference voltage V ref that the inverting input of comparator unit 40 is connected, control the switching of DC/DC converter 11 with this; When DC/DC converter 11 opening, charge/discharge unit 20 is charged simultaneously, still can as load unit 30 power supplies, reach the usefulness that in the different loads situation, improves DC/DC converter 11 to guarantee DC/DC converter 11 charge/discharge unit 20 under sleep pattern.
The above embodiment has only expressed a kind of execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with claims.
Claims (5)
1. high efficiency DC/DC changer system, it is characterized in that: comprise the DC/DC power converter cells, charge/discharge unit, load unit and comparator unit, described DC/DC power converter cells output, charge/discharge unit and load unit are electrically connected respectively, described DC/DC power converter cells input and described comparator unit output are electrically connected, described comparator unit in-phase input end and described DC/DC power converter cells output are electrically connected, described comparator unit inverting input is electrically connected with reference voltage, and described comparator unit power input is connected with outside level signal.
2. high efficiency DC/DC changer system according to claim 1, it is characterized in that: described DC/DC power converter cells output, charge/discharge unit positive input terminal and load unit positive input terminal are electrically connected respectively, and described charge/discharge unit negative input end and load unit negative input end be ground connection respectively.
3. high efficiency DC/DC changer system according to claim 1, it is characterized in that: described DC/DC power converter cells comprises DC/DC converter and inductance, described DC/DC converter input and described comparator unit output are electrically connected, described DC/DC converter output terminal is connected in inductance one end, the corresponding described DC/DC power converter cells output of the described inductance other end.
4. high efficiency DC/DC changer system according to claim 3, it is characterized in that: described charge/discharge unit is comprised of electric capacity, the corresponding described charge/discharge unit positive input terminal of described electric capacity one end, the corresponding described charge/discharge unit negative input end of the described electric capacity other end.
5. high efficiency DC/DC changer system according to claim 1, it is characterized in that: described comparator unit in-phase input end is inputted described load unit terminal voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276380 CN202696464U (en) | 2012-06-13 | 2012-06-13 | High-efficiency direct current/direct current (DC/DC) converter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276380 CN202696464U (en) | 2012-06-13 | 2012-06-13 | High-efficiency direct current/direct current (DC/DC) converter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696464U true CN202696464U (en) | 2013-01-23 |
Family
ID=47552017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220276380 Expired - Fee Related CN202696464U (en) | 2012-06-13 | 2012-06-13 | High-efficiency direct current/direct current (DC/DC) converter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658468A (en) * | 2019-09-17 | 2020-01-07 | 安徽容知日新科技股份有限公司 | Battery state detection device |
-
2012
- 2012-06-13 CN CN 201220276380 patent/CN202696464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658468A (en) * | 2019-09-17 | 2020-01-07 | 安徽容知日新科技股份有限公司 | Battery state detection device |
| CN110658468B (en) * | 2019-09-17 | 2021-12-07 | 安徽容知日新科技股份有限公司 | Battery state detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10727747B2 (en) | Hybrid buck-boost converter | |
| TWI416841B (en) | Electricity storing device and electronic device | |
| CN202721471U (en) | Mobile battery box | |
| US7898110B2 (en) | On-line uninterruptible power system | |
| CN103023320A (en) | High-efficiency bidirectional direct current converter and control method thereof | |
| WO2008040225A1 (en) | Electric vehicle charging system | |
| CN109787318A (en) | A kind of discharge circuit and electronic equipment | |
| CN104348202A (en) | Charging control circuit and method and electronic device | |
| CN101986502A (en) | Mobile phone battery charging circuit | |
| CN206698005U (en) | Dual input double startup exports voltage regulation type uninterrupted switch power supply | |
| CN202696464U (en) | High-efficiency direct current/direct current (DC/DC) converter system | |
| CN204103559U (en) | A kind of power circuit | |
| CN104333113A (en) | Power circuit | |
| CN110892603A (en) | Battery control circuit, battery and unmanned aerial vehicle | |
| CN102118057A (en) | DC UPS circuit with integrated charge-discharge circuit | |
| TWI513160B (en) | Power supply system and its DC converter | |
| US9960636B2 (en) | Power supply system and direct-current converter thereof | |
| CN203859572U (en) | Aging cabinet | |
| WO2022094906A1 (en) | Power system, charging method, and discharging method | |
| CN111391696A (en) | Single-three phase compatible bidirectional charger control circuit with optimal capacitance value | |
| CN111048055A (en) | Display and display standby power consumption control method | |
| CN220914951U (en) | Energy storage power supply and energy storage system | |
| CN105244928A (en) | Power control method and power control device for large-load terminals | |
| CN214755608U (en) | Battery unit charging and discharging device | |
| CN218301004U (en) | Super capacitor-based continuous power supply circuit after power failure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN BOYONG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DONGGUAN XIANGFENG ELECTRONICS TECHNOLOGY INDUSTRIAL CO., LTD. Effective date: 20130327 Free format text: FORMER OWNER: DONGGUAN BOYONG TECHNOLOGY CO., LTD. Effective date: 20130327 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 523850 DONGGUAN, GUANGDONG PROVINCE TO: 523000 DONGGUAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130327 Address after: Industrial Road, Songshan Lake high tech Zone 523000 Guangdong city of Dongguan province No. 6 Songhu Branch Park 2 building 611 room Patentee after: Dongguan Boyong Electronic Technology Co., Ltd. Address before: 523850 Guangdong Province, Dongguan city Changan town Xiagang Zhen'an Technology Park Patentee before: Dongguan Xiangfeng Electronic Technology Industrial Co., Ltd. Patentee before: Dongguan Boyong Electronic Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN BOYONG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DONGGUAN BOYONG TECHNOLOGY CO., LTD. Effective date: 20150615 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150615 Address after: 518054 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation zone before Bay Road No. 1 building 201 room A (located in Shenzhen Qianhai business secretary Co. Ltd.) Patentee after: SHENZHEN BOYONG TECHNOLOGY CO., LTD. Address before: Industrial Road, Songshan Lake high tech Zone 523000 Guangdong city of Dongguan province No. 6 Songhu Branch Park 2 building 611 room Patentee before: Dongguan Boyong Electronic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20170613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |