CN107612338B - Integrated DC/DC power supply front-end control system and control method - Google Patents
Integrated DC/DC power supply front-end control system and control method Download PDFInfo
- Publication number
- CN107612338B CN107612338B CN201710765177.4A CN201710765177A CN107612338B CN 107612338 B CN107612338 B CN 107612338B CN 201710765177 A CN201710765177 A CN 201710765177A CN 107612338 B CN107612338 B CN 107612338B
- Authority
- CN
- China
- Prior art keywords
- power supply
- integrated
- module
- clock
- supply front
- 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.)
- Active
Links
Images
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The invention discloses an integrated DC/DC power supply front-end control system, which at least comprises an integrated DC/DC power supply front-end controller, wherein one integrated DC/DC power supply front-end controller works in a main working mode, other integrated DC/DC power supply front-end controllers work in a slave working mode, and the integrated DC/DC power supply front-end controller working in the main working mode outputs a clock signal to the integrated DC/DC power supply front-end controller working in the slave working mode. The power consumption can be reduced, and particularly, when a plurality of groups of integrated DC/DC power controllers form an integrated power supply front-end control system, resources are saved. And the DC/DC conversion function of different voltage requirements is realized by connecting one or more transformers.
Description
The patent application of the invention is a divisional application of the invention creation name of 'an integrated DC/DC power supply front-end controller, a control method and a control system', the application date of the original application is 9 months and 9 days in 2014, and the application number is 2014104560572.
Technical Field
The invention relates to the field of power supply of power modules, in particular to a front-end control system powered by a DC/DC power supply.
Background
The power supply is an indispensable part of all electronic equipment and is a 'power source' of the equipment. The DC stabilized power supply is the most basic part of the power supply, and the quality of the performance of the DC stabilized power supply directly influences the reliability of electronic equipment. With the continuous development of semiconductor technology and the different requirements of various electronic products, a wide variety of power modules are in use.
At present, a plurality of power module products are available on the market, and the products which are best manufactured and have the largest use amount belong to TI companies. The DCP10505 of TI is a high-efficiency 5V input DC/DC conversion power chip with output short-circuit protection and overheat shutdown functions. The circuit block diagram is shown in fig. 1, but the synchronization of the power supplies which are externally connected is not good, and the integration configuration degree is not high.
Disclosure of Invention
The invention aims to provide an integrated DC/DC power supply front-end control system which is simple in circuit, high in control reliability, low in power consumption and better and more accurate in synchronization effect.
In order to solve the technical problems, the integrated DC/DC power supply front-end controller of the invention comprises an oscillator module, a division and reset module, a non-overlapping clock buffer module, an output power tube module and an over-temperature protection module, and is characterized in that: the integrated DC/DC power supply front-end controller also comprises a synchronization and clock control module, and the synchronization and clock control module determines the working mode of the DC/DC power supply front-end controller according to a signal input by an external port of the DC/DC power supply front-end controller.
Preferably, the external ports of the integrated DC/DC power supply front-end controller include an input power supply voltage port, an enable signal port, a synchronous digital signal port, a clock input port, and a clock output port and two voltage output ports.
Preferably, the oscillator module is connected with the division and reset module, the division and reset module is connected with the synchronization and clock control module, the synchronization and clock control module is connected with the non-overlapping clock cache module, the output power tube module has two output power tubes, the non-overlapping clock cache module is connected with the two output power tubes, one end of the over-temperature protection module is connected with the oscillator module, and the other end of the over-temperature protection module is connected with the synchronization and clock control module.
Preferably, the power voltage port is connected to each module of the integrated DC/DC power front-end controller and provides a working power supply, the enable signal port is connected to the oscillator module and the synchronization and clock control module, the synchronous digital signal port is connected to the oscillator module and the synchronization and clock control module, the clock input port is connected to the synchronization and clock control module, the clock output port is connected to the synchronization and clock control module and the division and reset module, and the two voltage output ports are connected to the output power tube module.
A control mode of an integrated DC/DC power supply front-end controller comprises the integrated DC/DC power supply front-end controller, wherein the integrated DC/DC power supply front-end controller comprises a master working mode and a slave working mode, and a synchronization and clock control module determines the working mode of the integrated DC/DC power supply front-end controller according to the effective state of an input synchronization digital signal.
Preferably, when the synchronous digital signal is in an invalid state, the integrated DC/DC power supply front-end controller is in a main working mode, the oscillator module generates a square wave clock signal, and the clock output signal end outputs a clock signal; when the synchronous digital signal is in an effective state, the integrated DC/DC power supply front-end controller is in a slave working mode, the oscillator module stops working, and the clock signal is input from the clock input port by an external clock signal.
Preferably, the oscillator module is enabled to generate the internal clock signal when a clock input signal failure at the clock input port is detected from the operating mode.
Preferably, the two voltage output ports of the output power tube module can be connected with at least one transformer.
The integrated DC/DC power supply front-end control system at least comprises an integrated DC/DC power supply front-end controller, wherein one integrated DC/DC power supply front-end controller works in a master working mode, other integrated DC/DC power supply front-end controllers work in a slave working mode, and the integrated DC/DC power supply front-end controller working in the master working mode outputs a clock signal to the integrated DC/DC power supply front-end controller working in the slave working mode.
Preferably, each integrated DC/DC power supply front-end controller is connected with a transformer, and all the transformers are connected in series and in parallel to output voltage; or, each integrated DC/DC power supply front-end controller is connected with a transformer, and all the transformers are connected in parallel to output voltage.
The integrated DC/DC power supply front-end control system is formed by adopting an integrated DC/DC power supply front-end controller. The integrated DC/DC power supply front-end controller has a master working mode and a slave working mode, the oscillator module is switched off in the slave working mode, power consumption can be reduced, and resources are saved particularly when a plurality of groups of integrated DC/DC power supply controllers form an integrated power supply front-end control system. And the DC/DC conversion function of different voltage requirements is realized by connecting one or more transformers.
A simple digital synchronous signal is utilized, and a very accurate analog signal source does not need to be externally connected; the synchronism is very good; the power supply chip is very easy to use and connect with an external device, and different integrated configurations are easy to make particularly when the power supply chip is independently developed; the reliability is high. And when the clock output by the main working mode has a problem, the integrated DC/DC power supply front-end controller under the slave working mode can autonomously cut off the main clock which has the problem and use the internal clock of the controller.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic block diagram of a prior art power conversion chip;
FIG. 2 is a functional block diagram of an integrated DC/DC power supply front end controller of an embodiment of the integrated DC/DC power supply front end control system of the present invention;
FIG. 3 is a schematic diagram of an integrated DC/DC power supply front end controller single power connection for an embodiment of the integrated DC/DC power supply front end control system of the present invention;
FIG. 4 is a schematic diagram of an integrated DC/DC power supply front end controller parallel power supply of an embodiment of the integrated DC/DC power supply control system of the present invention;
FIG. 5 is a schematic diagram of an integrated DC/DC power supply front end controller series power supply of an embodiment of the integrated DC/DC power supply control system of the present invention;
FIG. 6 is a clock timing diagram of an embodiment of the integrated DC/DC power control system of the present invention.
Detailed Description
Example (b):
the invention relates to an integrated DC/DC power supply front-end controller, wherein the integrated DC/DC power supply front-end controller comprises an oscillator module, a division and reset module, a synchronization and clock control module, a non-overlapping clock cache module, an output power tube module and an over-temperature protection module.
As shown in fig. 2, in this embodiment, the oscillator module is connected to the division and reset module, the division and reset module is connected to the synchronization and clock control module, the synchronization and clock control module is connected to the non-overlapping clock buffer module, the output power transistor module has two output power transistors (LDMOS), the non-overlapping clock buffer module is connected to the two output power transistors (LDMOS), one end of the over-temperature protection module is connected to the oscillator module, and the other end of the over-temperature protection module is connected to the synchronization and clock control module.
In this embodiment, the integrated DC/DC power supply front-end controller includes an input power supply voltage port, an enable signal port, a synchronous digital signal port, a clock input port, and a clock output port and two voltage output port outputs 1 and 2. As shown in fig. 2, the power voltage port provides a working power for connecting each module of the integrated DC/DC power front-end controller, the enable signal port is connected to the oscillator module and the synchronization and clock control module, the synchronous digital signal port is connected to the oscillator module and the synchronization and clock control module, the clock input port is connected to the synchronization and clock control module, the clock output port is connected to the synchronization and clock control module, and the two voltage output ports are connected to the output power pipe module.
The integrated DC/DC power supply front-end controller comprises a master working mode and a slave working mode, and the synchronization and clock control module determines the working mode of the integrated DC/DC power supply front-end controller according to the effective state of an input synchronization digital signal. The integrated DC/D power supply front-end controller of the present embodiment works as follows:
the oscillator module and the synchronization and clock control module are controlled by an enable signal, a synchronous digital signal, and a clock input signal. The function of the oscillator module is to generate a square wave clock signal. The synchronization and clock control module is a core control module of the invention, and has the function of selecting a circuit master/slave working mode; under the working state, the input clock with problems can be cut off, and the internal clock of the clock can be used; when the temperature is too high, the output is automatically cut off, and the circuit is turned off.
The specific implementation mode is as follows: when the enable signal is in an invalid state, the power supply in the circuit is turned off, and when the power supply is turned off, the Gate voltages of the two power tube LDMOS are both 0V; when the enable signal is in an effective state, the circuit is in a normal working state.
At this time, when the synchronous digital signal is in an invalid state, the integrated DC/DC power supply front-end controller is in a main operating mode, and the clock output signal can be output as a clock signal and can be supplied to other circuits.
When the synchronous digital signal is in an active state, the integrated DC/DC power supply front-end controller becomes a slave working mode, the oscillator is turned off (for saving power consumption), and the clock signal is supplied by an external clock and enters from the clock input port.
In order to improve the reliability, if the slave working mode detects that the clock input signal is invalid (becomes a normally invalid state or a normally valid state), the internal clock module automatically starts working, so that the chip can restore to a normal working state.
Clocks driving the two power transistors LDMOS must be Non-Overlapping clocks. Such clock signals are generated by a non-overlapping clock buffer module, the timing of which is shown in fig. 6, and the module includes an output buffer for driving two output power transistors. The DC/DC conversion circuit with different output voltages can be realized by connecting the voltage output ends 1 and 2 of the two output power tubes with one or more transformers in a certain connection mode.
Fig. 3 is a diagram of a single power connection of the integrated DC/DC power front-end control system of the present embodiment, wherein the integrated DC/DC power front-end control system includes an integrated DC/DC power front-end controller and a transformer connected to a voltage output terminal thereof to obtain an output voltage Vout desired by a user.
Because the integrated DC/DC power supply front-end controller has a master mode and a slave mode, the integrated DC/DC power supply front-end controller can be used in the integrated DC/DC power supply front-end control system to drive all other slave chip clocks by using one master clock signal.
Therefore, as the integrated DC/DC power front-end control system of the present embodiment, there may be multiple sets of integrated DC/DC power front-end devices, where only one of the integrated DC/DC power front-end devices needs to operate in the master operation mode, and the other integrated DC/DC power front-end devices can operate in the slave operation mode.
As shown in fig. 4, the integrated DC/DC Power front-end control system includes two integrated DC/DC Power front-end controllers, one of which operates in the master mode and the other operates in the slave mode, which connects the two transformers in parallel to obtain twice the Vout output Power (Power).
As shown in fig. 5, the integrated DC/DC power front-end control system includes three integrated DC/DC power front-end controllers, one of which operates in the master operation mode, and the other two of which operate in the slave operation mode, and the three integrated DC/DC power front-end controllers are connected in series to obtain an output voltage with a sum of three outputs.
The integrated DC/DC power supply front-end control system is formed by adopting an integrated DC/DC power supply front-end controller. The integrated DC/DC power supply front-end controller has a master working mode and a slave working mode, the oscillator module is switched off in the slave working mode, power consumption can be reduced, and resources are saved particularly when a plurality of groups of integrated DC/DC power supply controllers form an integrated power supply front-end control system. And the DC/DC conversion function of different voltage requirements is realized by connecting one or more transformers.
A simple digital synchronous signal is utilized, and a very accurate analog signal source does not need to be externally connected; the synchronism is very good; the power supply chip is very easy to use and connect with an external device, and different integrated configurations are easy to make particularly when the power supply chip is independently developed; the reliability is high. And when the clock output by the main working mode has a problem, the integrated DC/DC power supply front-end controller in the slave working mode can autonomously cut off the main clock having the problem and use the internal clock of the controller.
It is emphasized that the scope of the present invention includes, but is not limited to, the above-described embodiments. It should be noted that variations and modifications can be made by those skilled in the art without departing from the principle of the present invention, and these should also be considered as falling within the scope of the present invention.
Claims (2)
1. The utility model provides an integrated DC/DC power front end control system, is applicable to integrated DC/DC power front end controller, includes oscillator module, division and reset module, each other non-overlapping clock buffer module, output power tube module and excess temperature protection module, its characterized in that: the integrated DC/DC power supply front-end controller also comprises a synchronization and clock control module, and the synchronization and clock control module determines the working mode of the DC/DC power supply front-end controller according to a signal input by an external port of the DC/DC power supply front-end controller;
the external port of the integrated DC/DC power supply front-end controller comprises an input power supply voltage port, an enabling signal port, a synchronous digital signal port, a clock input port, a clock output port and two voltage output ports;
the integrated DC/DC power supply front-end control system at least comprises an integrated DC/DC power supply front-end controller, wherein one integrated DC/DC power supply front-end controller works in a master working mode, other integrated DC/DC power supply front-end controllers work in a slave working mode, and the integrated DC/DC power supply front-end controller working in the master working mode outputs a clock signal to the integrated DC/DC power supply front-end controller working in the slave working mode;
the oscillator module is connected with the division and reset module, the division and reset module is connected with the synchronization and clock control module, the synchronization and clock control module is connected with the non-overlapping clock cache module, the output power tube module is provided with two output power tubes (LDMOS), the non-overlapping clock cache module is connected with the two output power tubes (LDMOS), one end of the over-temperature protection module is connected with the oscillator module, and the other end of the over-temperature protection module is connected with the synchronization and clock control module;
the integrated DC/DC power supply front-end control system comprises an integrated DC/DC power supply front-end controller and a transformer connected with a voltage output end of the integrated DC/DC power supply front-end controller to obtain an output voltage Vout wanted by a user;
the oscillator module is switched off when in the slave mode of operation;
the input power supply voltage port is connected with each module of the integrated DC/DC power supply front-end controller and provides working power supply, the enabling signal port is connected with the oscillator module and the synchronization and clock control module, the synchronization digital signal port is connected with the oscillator module and the synchronization and clock control module, the clock input port is connected with the synchronization and clock control module, the clock output port is connected with the synchronization and clock control module and the division and reset module, and the two voltage output ports are connected with the output power tube module.
2. The integrated DC/DC power supply front-end control system of claim 1, wherein: each integrated DC/DC power supply front-end controller is connected with a transformer, and all the transformers are connected in series to output voltage; or, each integrated DC/DC power supply front-end controller is connected with a transformer, and all the transformers are connected in parallel to output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765177.4A CN107612338B (en) | 2014-09-09 | 2014-09-09 | Integrated DC/DC power supply front-end control system and control method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765177.4A CN107612338B (en) | 2014-09-09 | 2014-09-09 | Integrated DC/DC power supply front-end control system and control method |
| CN201410456057.2A CN104201898B (en) | 2014-09-09 | 2014-09-09 | A kind of integrated DC/DC power supplys front controller, control method and control system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410456057.2A Division CN104201898B (en) | 2014-09-09 | 2014-09-09 | A kind of integrated DC/DC power supplys front controller, control method and control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107612338A CN107612338A (en) | 2018-01-19 |
| CN107612338B true CN107612338B (en) | 2020-12-18 |
Family
ID=52087143
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410456057.2A Active CN104201898B (en) | 2014-09-09 | 2014-09-09 | A kind of integrated DC/DC power supplys front controller, control method and control system |
| CN201710765177.4A Active CN107612338B (en) | 2014-09-09 | 2014-09-09 | Integrated DC/DC power supply front-end control system and control method |
| CN201710765180.6A Active CN107612339B (en) | 2014-09-09 | 2014-09-09 | Control method of integrated DC/DC power supply front-end controller |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410456057.2A Active CN104201898B (en) | 2014-09-09 | 2014-09-09 | A kind of integrated DC/DC power supplys front controller, control method and control system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710765180.6A Active CN107612339B (en) | 2014-09-09 | 2014-09-09 | Control method of integrated DC/DC power supply front-end controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN104201898B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201898B (en) * | 2014-09-09 | 2017-12-22 | 嘉兴市纳杰微电子技术有限公司 | A kind of integrated DC/DC power supplys front controller, control method and control system |
| CN106100329B (en) * | 2016-07-27 | 2019-04-09 | 嘉兴市纳杰微电子技术有限公司 | Use the dcdc converter of digital synchronous logic control circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007199210A (en) * | 2006-01-24 | 2007-08-09 | Seiko Epson Corp | Semiconductor integrated circuit |
| WO2010054217A1 (en) * | 2008-11-07 | 2010-05-14 | Discovery Bay Technologies, Llc | Precisely synchronized notification system |
| CN102403899A (en) * | 2010-09-07 | 2012-04-04 | 瑞萨电子株式会社 | Integrated circuit device for switching regulator and designing method therefor |
| CN104201898A (en) * | 2014-09-09 | 2014-12-10 | 嘉兴市纳杰微电子技术有限公司 | Integrated DC/DC (Direct current) power source front-end controller, control way and control system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5469110A (en) * | 1994-06-27 | 1995-11-21 | Industrial Technology Research Institute | Charge pumping circuit using non-overlapping clock control |
| US8239597B2 (en) * | 2008-07-18 | 2012-08-07 | Intersil Americas Inc. | Device-to-device communication bus for distributed power management |
| CN102427364B (en) * | 2011-12-07 | 2014-02-12 | 西安启芯微电子有限公司 | External clock synchronization circuit of switching power supply |
| CN202794341U (en) * | 2012-05-30 | 2013-03-13 | 国网电力科学研究院武汉南瑞有限责任公司 | Digital dielectric-loss measurement device using time synchronization function of IEEE1588 |
| TWI452458B (en) * | 2012-06-25 | 2014-09-11 | Richtek Technology Corp | Switching regulator control circuit with multiple clock frequency setting modes |
| US9281749B2 (en) * | 2012-08-13 | 2016-03-08 | Northrop Grumman Systems Corporation | Multiple power supply systems and methods |
| CN103151941B (en) * | 2013-03-26 | 2015-08-19 | 王彤 | A kind of counter excitation type power superposition circuit |
| CN103942379B (en) * | 2014-04-14 | 2017-05-24 | 大连东软信息学院 | All-digital silicon controlled rectifier controller chip for three-phase alternating-current voltage regulation and rectification |
| CN204046425U (en) * | 2014-09-09 | 2014-12-24 | 嘉兴市纳杰微电子技术有限公司 | A kind of integrated DC/DC power supply front controller and control system |
-
2014
- 2014-09-09 CN CN201410456057.2A patent/CN104201898B/en active Active
- 2014-09-09 CN CN201710765177.4A patent/CN107612338B/en active Active
- 2014-09-09 CN CN201710765180.6A patent/CN107612339B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007199210A (en) * | 2006-01-24 | 2007-08-09 | Seiko Epson Corp | Semiconductor integrated circuit |
| WO2010054217A1 (en) * | 2008-11-07 | 2010-05-14 | Discovery Bay Technologies, Llc | Precisely synchronized notification system |
| CN102403899A (en) * | 2010-09-07 | 2012-04-04 | 瑞萨电子株式会社 | Integrated circuit device for switching regulator and designing method therefor |
| CN104201898A (en) * | 2014-09-09 | 2014-12-10 | 嘉兴市纳杰微电子技术有限公司 | Integrated DC/DC (Direct current) power source front-end controller, control way and control system |
Non-Patent Citations (1)
| Title |
|---|
| DCP01B Series 1-W, Ioslated, Unregulated DC/DC Converter Modules;Texas Instruments;《Texas Instruments》;20001231;第1-2页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104201898A (en) | 2014-12-10 |
| CN107612338A (en) | 2018-01-19 |
| CN107612339B (en) | 2020-08-07 |
| CN104201898B (en) | 2017-12-22 |
| CN107612339A (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207490762U (en) | A kind of rapid pressure charge pump circuit | |
| CN107612338B (en) | Integrated DC/DC power supply front-end control system and control method | |
| US20140354258A1 (en) | Supply voltage circuit | |
| WO2019029221A1 (en) | Input under-voltage protection circuit | |
| TW201619730A (en) | Power circuit and electronic device applying the power circuit | |
| CN203984240U (en) | A kind of power supply circuits of field programmable gate array | |
| CN103683461A (en) | Power supply switching system and method thereof | |
| CN103164009A (en) | Power-on and power-off reset circuit with multiple power supplies and operation method thereof | |
| TWI464414B (en) | A light load current detection system | |
| CN201499154U (en) | 12C bus based bidirectional level switching circuit | |
| US20130124880A1 (en) | Power supply device for central processing unit | |
| CN205490137U (en) | Low -cost power sequential circuit | |
| CN201222769Y (en) | Reset circuit and television set with the same | |
| JP2007274868A (en) | Programmable controller, and starting method thereof | |
| CN213585734U (en) | Circuit for realizing synchronous switch of equipment following host | |
| CN201084046Y (en) | Clock production circuit and microcontroller | |
| CN205453491U (en) | Two -way DCDC converter device based on DCDC alternaties module | |
| CN201349198Y (en) | HART modem | |
| CN219351510U (en) | Voltage conversion circuit | |
| CN104796016A (en) | High-voltage power tube and power source module | |
| CN215071615U (en) | Input undervoltage protection module for power supply and power supply | |
| CN203732960U (en) | Sensor adaption architecture with flexible configuration | |
| CN211426619U (en) | Low-power consumption low pressure detection circuitry | |
| CN201332351Y (en) | Module power supply with capability of sequential control | |
| CN102751976A (en) | Electric leakage prevention and electric level compatible circuit based on I2C (Intel-Integrated Circuit) bus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |