CN104201898A - Integrated DC/DC (Direct current) power source front-end controller, control way and control system - Google Patents
Integrated DC/DC (Direct current) power source front-end controller, control way and control system Download PDFInfo
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- CN104201898A CN104201898A CN201410456057.2A CN201410456057A CN104201898A CN 104201898 A CN104201898 A CN 104201898A CN 201410456057 A CN201410456057 A CN 201410456057A CN 104201898 A CN104201898 A CN 104201898A
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Abstract
The invention discloses an integrated DC/DC (Direct Current) power source front-end control system. The integrated DC/DC power source front-end control system at least comprises an integrated DC/DC power source front-end controller, wherein one integrated DC/DC power source front-end controller works in a main working mode, and other integrated DC/DC power source front-end controllers work in a slave working mode; the integrated DC/DC power source front-end controller working in the main working mode outputs a clock signal to the integrated DC/DC power source front-end controllers working in the slave working mode. The power consumption can be reduced particularly when multiple groups of integrated DC/DC power source controllers compose an integrated power source front-end control system, and resources are saved. Meanwhile, a DC/DC conversion function with different voltage demands is realized through connecting one or more transformers.
Description
Technical field
The present invention relates to power module for electrical domain, relate in particular to the front-end control system of DC/DC Power supply.
Background technology
Power supply is the requisite parts of all electronic equipments, is " power source " of equipment.D.C. regulated power supply is meat and potatoes in power supply, and the quality of its performance directly affects the reliability of electronic equipment.Along with the development of semiconductor technology and the different demands of each electronic product, miscellaneous power module arises at the historic moment.
There are in the market a lot of power module products, the product of best, the genus TI company that use amount is maximum of doing.The DCP10505 of TI company is a efficient 5V input DC/DC conversion electric power chip, has output short circuit protection and overheated turn-off function.As shown in Figure 1, synchronous and bad but its power supply must external one, integrated configuration degree is not high for its circuit block diagram.
Summary of the invention
Technical problem to be solved by this invention is to provide the integrated DC/DC power supply front-end control system that a kind of circuit is simple, control reliability is high, low in energy consumption, synchronous effect is better more accurate.
In order to solve above technical problem; a kind of integrated DC/DC power supply front controller of the present invention; comprise oscillator module, division and reseting module, not overlapping clock cache module, power output tube module and overheat protector module mutually; it is characterized in that: described integrated DC/DC power supply front controller also comprises synchronous and clock control module, described signal synchronous and that clock control module is inputted according to DC/DC power supply front controller outside port is determined the mode of operation of described DC/DC power supply front controller.
Preferably, the outside port of described integrated DC/DC power supply front controller comprises input supply voltage port, enable signal port, synchronous digital signal port, input end of clock mouth and output terminal of clock mouth and two Voltage-output ports.
Preferably; described oscillator module connects described division and reseting module; described division connects described synchronizeing and clock control module with reseting module; the described synchronous described not overlapping clock cache module mutually that is connected with clock control module; described power output tube module has two power output pipes; not overlapping clock cache module connects two power output pipes mutually, described overheat protector module one end connection oscillator module, and the described overheat protector module other end connects synchronous and clock control module.
Preferably, described supply voltage port is given and is connected the each module of described integrated DC/DC power supply front controller and working power is provided, described enable signal port connects described oscillator module and described synchronous and clock control module, described synchronous digital signal port connects described oscillator module and described synchronous and clock control module, described input end of clock mouth connects described synchronous and clock control module, described output terminal of clock mouth connects described synchronous and clock control module and described division and reseting module, described two Voltage-output ports connect described power output tube module.
A kind of integrated DC/DC power supply front controller control mode, comprise aforesaid integrated DC/DC power supply front controller, wherein, described integrated DC/DC power supply front controller comprises that a main mode of operation and one are from mode of operation, the described synchronous mode of operation of determining described integrated DC/DC power supply front controller with clock control module according to the effective status of the synchronous digital signal of inputting.
Preferably, in the time that synchronous digital signal is disarmed state, described integrated DC/DC power supply front controller is main mode of operation, and described oscillator module produces square wave clock signal, clock output signal end clock signal; In the time that synchronous digital signal is effective status, described integrated DC/DC power supply front controller is from mode of operation, and described oscillator module quits work, and clock signal is inputted from described input end of clock mouth by outside clock signal.
Preferably, when the clock input signal that input end of clock mouth detected from mode of operation lost efficacy, described oscillator module starts generation internal clock signal.
Preferably, two of described power output tube module Voltage-output ports can connect at least one transformer.
A kind of integrated DC/DC power supply front-end control system, wherein, described integrated DC/DC power supply front-end control system at least comprises an integrated DC/DC power supply front controller, one of them integrated DC/DC power supply front-end control is operated in main mode of operation, other integrated DC/DC power supply front controllers are operated in from mode of operation, are operated in integrated DC/DC power supply front controller clock signal under main mode of operation to the integrated DC/DC power supply front controller being operated in from mode of operation.
Preferably, each integrated DC/DC power supply front controller connects a transformer, all transformers is connected and connect rear output voltage; Or each integrated DC/DC power supply front controller connects a transformer, output voltage after all transformers connected in parallel are connected.
Integrated DC/DC power supply front-end control system of the present invention, by adopting integrated DC/DC power supply front controller composition.And integrated DC/DC power supply front controller has main mode of operation and from mode of operation, when from mode of operation, oscillator module turn-offs, can reduce power consumption, especially, in the time of the integrated DC/DC power-supply controller of electric composition of many groups integrated power supply front-end control system, save resource.And realize the DC/DC translation function of different voltage requirements by connecting one or more transformers.
Utilize simple digital synchronization signal, without an external very accurate simulation signal generator; Synchronism is very good; Be very easy to use and be connected with external devices, especially, in the time of independent research power supply chip, different integrated configurations is easy to do; Reliability is high.And in the time that the clock of main mode of operation output goes wrong, from mode of operation, obtaining integrated DC/DC power supply front controller can independently cut off the master clock ging wrong, and uses own inner clock.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the theory diagram of power conversion chip in prior art;
Fig. 2 is the integrated DC/DC power supply front controller theory diagram of the embodiment of the integrated DC/DC power supply of the present invention front-end control system;
Fig. 3 is the integrated DC/DC power supply front controller single supply connection diagram of the embodiment of the integrated DC/DC power supply of the present invention front-end control system;
Fig. 4 is the integrated DC/DC power supply front controller parallel connection power supply schematic diagram of the embodiment of the integrated DC/DC power control system of the present invention;
Fig. 5 is the integrated DC/DC power supply front controller series-connection power supplies schematic diagram of the embodiment of the integrated DC/DC power control system of the present invention;
Fig. 6 is the clock timing diagram of the embodiment of the integrated DC/DC power control system of the present invention.
Body execution mode
Embodiment:
A kind of integrated DC/DC power supply front controller of the present invention; wherein, described integrated DC/DC power supply front controller comprises oscillator module, division and reseting module, synchronizes and clock control module, not overlapping clock cache module, power output tube module and overheat protector module mutually.
As shown in Figure 2; in the present embodiment; described oscillator module connects described division and reseting module; described division connects described synchronizeing and clock control module with reseting module; the described synchronous described not overlapping clock cache module mutually that is connected with clock control module; described power output tube module has two power output pipes (LDMOS); not overlapping clock cache module connects two power output pipes (LDMOS) mutually; described overheat protector module one end connection oscillator module, the described overheat protector module other end connects synchronous and clock control module.
In the present embodiment, described integrated DC/DC power supply front controller comprises input supply voltage port, enable signal port, synchronous digital signal port, input end of clock mouth and output terminal of clock mouth and two Voltage-output port outputs 1 and exports 2.As shown in Figure 2, described supply voltage port is given and is connected the each module of described integrated DC/DC power supply front controller and working power is provided, described enable signal end connects described oscillator module and described synchronous and clock control module, described synchronous digital signal end connects described oscillator module and described synchronous and clock control module, described input end of clock mouth connects described synchronous and clock control module, described output terminal of clock mouth connects described synchronous and clock control module, and described two Voltage-output ports connect described power output tube module.
Integrated DC/DC power supply front controller in the present invention comprises that a main mode of operation and one are from mode of operation, the described synchronous mode of operation of determining described integrated DC/DC power supply front controller with clock control module according to the effective status of the synchronous digital signal of inputting.The working method of the integrated DC/D power supply front controller of the present embodiment is as follows:
Oscillator module and synchronous and clock control module are by enable signal, synchronous digital signal, clock input signal control.The function of oscillator module is for producing square wave clock signal.Synchronous and clock control module is kernel control module of the present invention, and its function is to select the master/slave mode of operation of circuit; From operating state, the input clock ging wrong can be cut off, use own inner clock; In the time of excess Temperature, automatically cut off output, breaking circuit.
Specific implementation is as follows: in the time that enable signal is disarmed state, in circuit, power supply will turn-off, and when shutoff, the grid G ate voltage of two power tube LDMOS is all at 0V; When enable signal is during in effective status, it is circuit normal operating conditions.
Now, in the time that synchronous digital signal is disarmed state, described integrated DC/DC power supply front controller is main mode of operation, and clock output signal can be used as clock signal output, can supply with other circuit.
In the time that synchronous digital signal is effective status, described integrated DC/DC power supply front controller just becomes from mode of operation, oscillator can be turned off (in order to economize power consumption), and clock signal, just by outside clock supply, enters from input end of clock mouth.
In order to improve reliability, if from mode of operation, detected when clock input signal loses efficacy and (became normal disarmed state or normal effective status), internal clocking module will be started working automatically, makes chip can recover again normal operating conditions.
Driving the clock of two power tube LDMOS must be not overlapping clock (Non-Overlapping Clock) mutually.Such clock signal is produced by not overlapping clock cache module mutually, and as shown in Figure 6, this module comprises an output state to its sequential, drives two power output pipes.By the voltage output end output 1 of two power output pipes, output 2 connects one or more transformers with certain connected mode, can realize the DC/DC change-over circuit of different output voltages.
Be integrated DC/DC power supply front-end control system single supply connection layout in the present embodiment as shown in Figure 3, wherein integrated DC/DC power supply front-end control system comprises that an integrated DC/DC power supply front controller obtains with the transformer that is connected its voltage output end the output voltage V out that user wants.
Because integrated DC/DC power supply front controller has master and slave two kinds of mode of operations, can use organize integrated DC/DC power supply front controller in integrated DC/DC power supply front-end control system so, drive other all from chip clock with a master clock signal.
Therefore, as the integrated DC/DC power supply front-end control system of the present embodiment, it can have the front end-apparatus of the integrated DC/DC power supply of many groups, wherein only needs one and is operated under main mode of operation, and other can be operated in from mode of operation.
As shown in Figure 4, integrated DC/DC power supply front-end control system comprises two integrated DC/DC power supply front controllers, one of them is operated under main mode of operation, another is operated in from mode of operation, it connects two transformers in parallel, obtains the Vout power output (Power) of twice.
As shown in Figure 5, integrated DC/DC power supply front-end control system comprises three integrated DC/DC power supply front controllers, and one of them is operated under main mode of operation, and another two are operated in from mode of operation, its mode with series connection connects three transformers, obtains the output voltage of three output summations.
Integrated DC/DC power supply front-end control system of the present invention, by adopting integrated DC/DC power supply front controller composition.And integrated DC/DC power supply front controller has main mode of operation and from mode of operation, when from mode of operation, oscillator module turn-offs, can reduce power consumption, especially, in the time of the integrated DC/DC power-supply controller of electric composition of many groups integrated power supply front-end control system, save resource.And realize the DC/DC translation function of different voltage requirements by connecting one or more transformers.
Utilize simple digital synchronization signal, without an external very accurate simulation signal generator; Synchronism is very good; Be very easy to use and be connected with external devices, especially, in the time of independent research power supply chip, different integrated configurations is easy to do; Reliability is high.And in the time that the clock of main mode of operation output goes wrong, the integrated DC/DC power supply front controller from mode of operation can independently cut off the master clock ging wrong, and uses own inner clock.
It is emphasized that protection scope of the present invention is including but not limited to above-mentioned embodiment.It should be pointed out that for a person skilled in the art, under the premise without departing from the principles of the invention, can also make some distortion and improvement, these also should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. an integrated DC/DC power supply front controller; comprise oscillator module, division and reseting module, not overlapping clock cache module, power output tube module and overheat protector module mutually; it is characterized in that: described integrated DC/DC power supply front controller also comprises synchronous and clock control module, described signal synchronous and that clock control module is inputted according to DC/DC power supply front controller outside port is determined the mode of operation of described DC/DC power supply front controller.
2. integrated DC/DC power supply front controller according to claim 1, is characterized in that: described integrated DC/DC power supply front controller outside port comprises input supply voltage port, enable signal port, synchronous digital signal port, input end of clock mouth and output terminal of clock mouth and two Voltage-output ports.
3. integrated DC/DC power supply front controller according to claim 2, it is characterized in that: described oscillator module connects described division and reseting module, described division connects described synchronizeing and clock control module with reseting module, the described synchronous described not overlapping clock cache module mutually that is connected with clock control module, described power output tube module has two power output pipes, described not overlapping clock cache module mutually connects two power output pipes, described overheat protector module one end connection oscillator module, the described overheat protector module other end connects synchronous and clock control module.
4. integrated DC/DC power supply front controller according to claim 2, it is characterized in that: described supply voltage port is to connecting the each module of described integrated DC/DC power supply front controller and working power being provided, described enable signal port connects described oscillator module and described synchronous and clock control module, described synchronous digital signal port connects described oscillator module and described synchronous and clock control module, described input end of clock mouth connects described synchronous and clock control module, described output terminal of clock mouth connects described synchronous and clock control module and described division and reseting module, described two Voltage-output ports connect described power output tube module.
5. an integrated DC/DC power supply front controller control mode, comprise the integrated DC/DC power supply front controller described in aforementioned claim 1-4, it is characterized in that: described integrated DC/DC power supply front controller comprises that a main mode of operation and one are from mode of operation the described synchronous mode of operation of determining described integrated DC/DC power supply front controller with clock control module according to the effective status of the synchronous digital signal of inputting.
6. integrated DC/DC power supply front controller control mode according to claim 5, it is characterized in that: in the time that synchronous digital signal is disarmed state, described integrated DC/DC power supply front controller is main mode of operation, described oscillator module produces square wave clock signal, clock output signal port clock signal; In the time that synchronous digital signal is effective status, described integrated DC/DC power supply front controller is from mode of operation, and described oscillator module quits work, and clock signal is inputted from described input end of clock mouth by outside clock signal.
7. integrated DC/DC power supply front controller control mode according to claim 6, is characterized in that: when the clock input signal that input end of clock mouth detected lost efficacy, described oscillator module starts and produces internal clock signal.
8. integrated DC/DC power supply front controller control mode according to claim 5, is characterized in that: two Voltage-output ports of described power output tube module can connect at least one transformer.
9. an integrated DC/DC power supply front-end control system, it is characterized in that: described integrated DC/DC power supply front-end control system at least comprises an integrated DC/DC power supply front controller, one of them integrated DC/DC power supply front-end control is operated in main mode of operation, other integrated DC/DC power supply front controllers are operated in from mode of operation, are operated in integrated DC/DC power supply front controller clock signal under main mode of operation to the integrated DC/DC power supply front controller being operated in from mode of operation.
10. integrated DC/DC power supply front-end control system according to claim 9, is characterized in that: each integrated DC/DC power supply front controller connects a transformer, all transformers is connected and connect rear output voltage; Or each integrated DC/DC power supply front controller connects a transformer, output voltage after all transformers connected in parallel are connected.
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| 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 |
| CN201710765180.6A CN107612339B (en) | 2014-09-09 | 2014-09-09 | Control method of integrated DC/DC power supply front-end controller |
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| 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 |
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| CN201710765177.4A Division CN107612338B (en) | 2014-09-09 | 2014-09-09 | Integrated DC/DC power supply front-end control system and control method |
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| CN201710765180.6A Active CN107612339B (en) | 2014-09-09 | 2014-09-09 | Control method of integrated DC/DC power supply front-end controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107612338A (en) * | 2014-09-09 | 2018-01-19 | 嘉兴市纳杰微电子技术有限公司 | A kind of integrated DC/DC power supplys front-end control system and control method |
| 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110311570B (en) * | 2019-07-19 | 2025-02-11 | 苏州源特半导体科技有限公司 | Switching power supplies that achieve power level expansion by using controllers in parallel |
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| CN107612338B (en) * | 2014-09-09 | 2020-12-18 | 嘉兴市纳杰微电子技术有限公司 | Integrated DC/DC power supply front-end control system and control method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104201898B (en) | 2017-12-22 |
| CN107612339A (en) | 2018-01-19 |
| CN107612338A (en) | 2018-01-19 |
| CN107612339B (en) | 2020-08-07 |
| CN107612338B (en) | 2020-12-18 |
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