CN208079464U - Each module of power source internal starts sequential control circuit - Google Patents
Each module of power source internal starts sequential control circuit Download PDFInfo
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- CN208079464U CN208079464U CN201820453314.0U CN201820453314U CN208079464U CN 208079464 U CN208079464 U CN 208079464U CN 201820453314 U CN201820453314 U CN 201820453314U CN 208079464 U CN208079464 U CN 208079464U
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Abstract
The utility model discloses each modules of power source internal to start sequential control circuit, including the first current-limiting resistance, second current-limiting resistance, third current-limiting resistance, diode voltage regulation resistance, hysteresis resistance, zener diode, first triode and the second triode, diode voltage regulation resistance is connected with zener diode, first current-limiting resistance is connect with prime AC-DC output voltages, diode voltage regulation resistance is electrically connected with the source electrode of the first triode, the grid of first triode is electrically connected with the drain electrode of the second triode, hysteresis resistance one end is electrically connected with the grid of the second triode, the drain electrode of first triode concatenates after being electrically connected with hysteresis resistance with module auxiliary electric power supply, the unified power supply of source electrode concatenation of first triode.Each module of the power source internal starts sequential control circuit, by the drain electrode and the grid of the second triode that connect the first triode by hysteresis resistance so that entire power good output, circuit is simple, at low cost, practical function, and synthesis is cost-effective.
Description
Technical field
The utility model is related to LED drive power technical field, specially each module of power source internal starts timing control electricity
Road.
Background technology
With popularizing for LED illumination lamp, all kinds of LED lamp application fields are more and more wider, and driving power is as LED operation
Power supply supply also increasingly paid close attention to by people, be generally all made of several modules inside the LED drive power of the prior art, one
As it is simplest be at least made of two-stage, prime be exchange input and conversion AC-DC, rear class be constant-current dc export DC-DC, often
All there are one (auxiliary power unit) VCC to provide auxiliary power supply for one module, general from cost and saving volume consideration
All it is to be powered by a unified VCC, but VCC is once established after power supply electrifying and will be made simultaneously to each module for power supply
Each module starts work simultaneously, and each module inside power supply especially large power supply has stringent startup sequential, otherwise
If previous module has just started work, its also unstable or its output voltage of output reaches required by post-module not yet
Input voltage range post-module also start work if may result in the damage of entire power supply.Based on the above circumstances, existing skill
The circuit that each module of power source internal starts sequential is accurately controlled frequently with one in art, the VCC of each module is pressed respectively
Get up according to timing requirements control is started, to avoid because power supply damages caused by each module starts sequential disorder.Its control is opened
The circuit of dynamic sequential, the voltage of prime AC-DC must satisfy setting value and could power rear class DC-DC module, rear class DC-DC moulds
Block starts the voltage for moment dragging down prime AC-DC so that the input of module accessory power supply is zero, and rear class DC-DC module is caused to be stopped
Only work, etc. the voltage of primes AC-DC meet condition again, rear class DC-DC modules are again started up, so, rear class DC-
DC module interrupter duties so that entire power supply can not stablize output.
Utility model content
The purpose of this utility model is to provide each modules of power source internal to start sequential control circuit, to solve above-mentioned background
Each module of existing power source internal proposed in technology starts sequential control circuit, and rear class DC-DC module discontinuously opens when in use
It is dynamic, to ensure the problem of entire power good exports.
To achieve the above object, the utility model provides the following technical solutions：A kind of each module startup sequential of power source internal
Control circuit, including the first current-limiting resistance, the second current-limiting resistance, third current-limiting resistance, diode voltage regulation resistance, hysteresis resistance,
Zener diode, the first triode and the second triode, the diode voltage regulation resistance is connected with the zener diode, described
It is electrically connected with the zener diode after first current-limiting resistance, the second current-limiting resistance, third current-limiting resistance concatenation, first limit
Leakage resistance is connect with prime AC-DC output voltages, and the source electrode of the diode voltage regulation resistance and first triode is electrically connected
It connects, the grid of first triode is electrically connected with the drain electrode of second triode, second current-limiting resistance and described the
The grids of two triodes is electrically connected, the drain electrode of first triode be electrically connected with the hysteresis resistance after with module auxiliary power supply
Power series, the unified power supply of source electrode concatenation of first triode.
Preferably, the prime AC-DC output voltages reach setting value, first triode ON, and the described 1st
The source electrode of pole pipe is connected with the drain electrode of first triode composes in series turning circuit, the system with module auxiliary electric power supply
The voltage of one power supply is transmitted on the module auxiliary electric power supply, and the DC-DC module of rear class must just electrically activate work.
Preferably, the gate turn-on of the hysteresis resistance and second triode drags down the prime AC-DC output electricity
Pressure, the prime AC-DC output voltages are greater than the set value, and second triode obtains piezoelectric voltage drop and is held on less than 0.7V,
The module auxiliary electric power supply is kept as electricity condition.
Preferably, the diode voltage regulation resistance is electrically connected with the source electrode of second triode.
Compared with prior art, the beneficial effects of the utility model are, the first triode is connected by passing through hysteresis resistance
Drain electrode and the second triode grid so that the second triode start after be held on to module auxiliary electric power supply keep
There is electricity condition so that entire power good output, circuit is simple, at low cost, practical function, and synthesis is cost-effective.
Description of the drawings
Fig. 1 is that each module of power source internal of the utility model starts sequential control circuit schematic diagram.
In figure：VCC-- unifies power supply；VCC_2-- module auxiliary electric power supplies；AC-DC the outputs of VBULK-- primes
Voltage；The first current-limiting resistances of R1--；The second current-limiting resistances of R2--；R3-- third current-limiting resistances；R4-- diode voltage regulation resistances；
R5-- hysteresis resistance；D1-- zener diodes；The first triodes of Q1--；The second triodes of Q2--.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of each module startup timing control electricity of power source internal
Road, including the first current-limiting resistance R1, the second current-limiting resistance R2, third current-limiting resistance R3, diode voltage regulation resistance R4, hysteresis resistance
R5, zener diode D1, the first triode Q1 and the second triode Q2, diode voltage regulation resistance R4 go here and there with zener diode D1
Connection, the first current-limiting resistance R1, the second current-limiting resistance R2, third current-limiting resistance R3 are electrically connected after concatenating with zener diode R4, the
One current-limiting resistance R1 is connect with prime AC-DC output voltages VBULK, the source of diode voltage regulation resistance R4 and the first triode Q1
Pole is electrically connected, and the grid of the first triode Q1 is electrically connected with the drain electrode of the second triode Q2, the second current-limiting resistance R2 and the
The grid of two triode Q2 is electrically connected, and the drain electrode of the first triode Q1 is electric with module auxiliary power supply after being electrically connected with hysteresis resistance R4
Subject string meets VCC_2, the unified power supply VCC of source electrode concatenation of the first triode Q1.
Prime AC-DC output voltages VBULK reaches setting value, the first triode Q1 conductings, the source electrode of the first triode Q1
It is connected with the drain electrode of the first triode Q1 and composes in series turning circuit, unified power supply with module auxiliary electric power supply VCC_2
The voltage of VCC is transmitted on module auxiliary electric power supply VCC_2, and the DC-DC module of rear class must just electrically activate work.Hysteresis resistance
The gate turn-on of R5 and the second triode Q2 drag down prime AC-DC output voltages VBULK, the prime AC-DC output voltages
VBULK is greater than the set value, and the second triode Q2 obtains piezoelectric voltage drop and is held on less than 0.7V, module auxiliary electric power supply VCC_2
It is kept as electricity condition.Diode voltage regulation resistance R4 is electrically connected with the source electrode of the second triode Q2.
Each module of power source internal of the utility model starts sequential control circuit, by connecting the one or three by hysteresis resistance
The drain electrode of pole pipe and the grid of the second triode so that the second triode is held on after starting to module auxiliary electric power supply
Maintain electricity condition so that entire power good output, circuit is simple, at low cost, practical function, and synthesis is cost-effective.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of each module of power source internal starts sequential control circuit, which is characterized in that including the first current-limiting resistance, the second current limliting
Resistance, third current-limiting resistance, diode voltage regulation resistance, hysteresis resistance, zener diode, the first triode and the second triode,
The diode voltage regulation resistance is connected with the zener diode, first current-limiting resistance, the second current-limiting resistance, third current limliting
It is electrically connected with the zener diode after resistance concatenation, first current-limiting resistance is connect with prime AC-DC output voltages, described
Diode voltage regulation resistance is electrically connected with the source electrode of first triode, the grid of first triode and the two or three pole
The drain electrode of pipe is electrically connected, and second current-limiting resistance is electrically connected with the grid of second triode, first triode
Drain electrode concatenates after being electrically connected with the hysteresis resistance with module auxiliary electric power supply, and the source electrode concatenation of first triode is unified
Power supply.
2. each module of power source internal according to claim 1 starts sequential control circuit, which is characterized in that the prime
AC-DC output voltages reach setting value, first triode ON, the source electrode of first triode and the one or three pole
The drain electrode conducting of pipe composes in series turning circuit with module auxiliary electric power supply, and the voltage of the unified power supply is transmitted to institute
It states on module auxiliary electric power supply, the DC-DC module of rear class must just electrically activate work.
3. each module of power source internal according to claim 1 starts sequential control circuit, which is characterized in that the hysteresis electricity
Resistance and the gate turn-on of second triode drag down the prime AC-DC output voltages, and the prime AC-DC output voltages are big
In setting value, second triode obtains piezoelectric voltage drop and is held on less than 0.7V, and the module auxiliary electric power supply is kept as
Electricity condition.
4. each module of power source internal according to claim 1 starts sequential control circuit, which is characterized in that the diode
Voltage regulation resistance is electrically connected with the source electrode of second triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820453314.0U CN208079464U (en) | 2018-04-02 | 2018-04-02 | Each module of power source internal starts sequential control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820453314.0U CN208079464U (en) | 2018-04-02 | 2018-04-02 | Each module of power source internal starts sequential control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208079464U true CN208079464U (en) | 2018-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820453314.0U Expired - Fee Related CN208079464U (en) | 2018-04-02 | 2018-04-02 | Each module of power source internal starts sequential control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208079464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117394489A (en) * | 2023-10-19 | 2024-01-12 | 安徽行一新能源技术有限公司 | BMS power supply starting wake-up circuit and control method thereof |
-
2018
- 2018-04-02 CN CN201820453314.0U patent/CN208079464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117394489A (en) * | 2023-10-19 | 2024-01-12 | 安徽行一新能源技术有限公司 | BMS power supply starting wake-up circuit and control method thereof |
| CN117394489B (en) * | 2023-10-19 | 2024-06-07 | 安徽行一新能源技术有限公司 | BMS power supply starting wake-up circuit and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 Termination date: 20190402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |