CN110071646A - Exchange turns high direct voltage radiator fan - Google Patents
Exchange turns high direct voltage radiator fan Download PDFInfo
- Publication number
- CN110071646A CN110071646A CN201910344247.8A CN201910344247A CN110071646A CN 110071646 A CN110071646 A CN 110071646A CN 201910344247 A CN201910344247 A CN 201910344247A CN 110071646 A CN110071646 A CN 110071646A
- Authority
- CN
- China
- Prior art keywords
- pin
- resistance
- inductance
- radiator fan
- diode
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses a kind of exchanges to turn high direct voltage radiator fan, including ac input end and rectifier bridge, rectification bridge output end connects power management chip U1 and diode D2, the common end of the connection of the 4th pin capacitor C2, C3 and diode D3 of power management chip U1, capacitor C2, C3 other end connects the first pin and second pin of power management chip U1, and the other end of diode D3 connects the first pin and second pin of power management chip U1 through resistance R3 with inductance L；The first pin and second pin of the other end connection power management chip U1 of diode D2；Resistance R3 connects zener diode Z1, capacitor C1 and resistance R4 in parallel with the common end of inductance L, and zener diode Z1, capacitor C1 and the resistance R4 other end are grounded, and the common end output voltage of resistance R3 and inductance L are connect with radiator fan load circuit.The present invention solves the problems, such as that high-voltage filtering capacitor can not accomplish ideal size, and this operating voltage range is wide.
Description
Technical field
The present invention relates to fans, particularly relate to a kind of exchange and turn high direct voltage radiator fan.
Background technique
As shown in Figure 1, to make AC to DC radiator fan in current brushless radiating fan field, at this time way is all
It is by alternating current by making power management IC work after rectifier bridge and capacitance rectifier filtering, the pressure resistance of high-voltage electrolytic capacitor is big
In DC400V, corresponding capacitor size is very big, and the size of high-voltage electrolytic capacitor can not be reduced to perfect condition, and minimum dimension is all
It is 6.3*12 centimeters, causes the size of brushless radiating fan that can not further reduce, limit the use scope of radiator fan.
Summary of the invention
The present invention proposes that a kind of exchange turns high direct voltage radiator fan, solves the ruler of high-voltage electrolytic capacitor in the prior art
It is very little to be reduced to perfect condition, cause the size of brushless radiating fan that can not further reduce, limits making for radiator fan
The problem of with range.
The technical scheme of the present invention is realized as follows:
A kind of exchange turns high direct voltage radiator fan, including ac input end and rectifier bridge, the ac input end connection
The input terminal of the rectifier bridge, the rectification bridge output end connect power management chip U1 and diode D2, the power management
The common end of the connection of the 4th pin capacitor C2, C3 and diode D3 of chip U1, capacitor C2, C3 other end connect power supply pipe
The first pin and second pin of chip U1 are managed, the other end of the diode D3 connects power management with inductance L through resistance R3
The first pin and second pin of chip U1；The diode D2 the other end connection power management chip U1 the first pin and
Second pin；The resistance R3 connects in parallel zener diode Z1, capacitor C1 and resistance R4 with the common end of inductance L, described
Zener diode Z1, capacitor C1 and resistance R4 other end ground connection, the common end output voltage and heat dissipation of the resistance R3 and inductance L
Fan load circuit connection.
Preferably, the input voltage range of the ac input end is 90V~350V.
Preferably, the radiator fan load circuit includes inductance L1, inductance L2 and resistance R5, the inductance L1, inductance
L2 and resistance R5 are in parallel, and one end is connect with the common end output end of the resistance R3 and inductance L, other end connecting interface terminal.
Preferably, the inductance L and capacitor C1 provides electricity.
Preferably, the common end grounding of the 4th pin and diode D2 of the rectifier bridge.
The beneficial effects of the present invention are: the size for solving high-voltage electrolytic capacitor in the prior art can not be reduced to ideal
The problem of state, leading to the size of brushless radiating fan can not further reduce, limit the use scope of radiator fan.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the circuit diagram that exchange turns high direct voltage radiator fan one embodiment in the prior art；
Fig. 2, which is that the present invention is a kind of, exchanges the circuit diagram for turning high direct voltage radiator fan one embodiment；
Fig. 3 is the main view of high pressure radiator fan one embodiment；
Fig. 4 is the right view of high pressure radiator fan one embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Fig. 2, the invention proposes a kind of exchanges to turn high direct voltage radiator fan, including ac input end and rectification
Bridge, ac input end connect the input terminal of rectifier bridge, and rectification bridge output end connects power management chip U1 and diode D2, power supply
The common end of the connection of the 4th pin capacitor C2, C3 and diode D3 of managing chip U1, capacitor C2, C3 other end connect power supply pipe
The first pin and second pin of chip U1 are managed, the other end of diode D3 connects power management chip with inductance L through resistance R3
The first pin and second pin of U1；The first pin and second of the other end connection power management chip U1 of diode D2 draws
Foot；Resistance R3 connects zener diode Z1, capacitor C1 and resistance R4 in parallel, zener diode Z1, electricity with the common end of inductance L
Hold C1 and the resistance R4 other end is grounded, the common end output voltage of resistance R3 and inductance L are connect with radiator fan load circuit.It is whole
Flow the common end grounding of the 4th pin and diode D2 of bridge.Radiator fan load circuit includes inductance L1, inductance L2 and resistance
R5, inductance L1, inductance L2 and resistance R5 are in parallel, and one end is connect with the common end output end of resistance R3 and inductance L, other end connection
Interface Terminal.The input voltage range of ac input end is 90V~350V.Inductance L and capacitor C1 provides electricity.D1 is rectification
Bridge, by after D1 rectifier bridge, becoming the impulse wave supply U1 of only positive half cycle, (U1 is power supply pipe to AC90V~AC350V alternating current
Manage IC), at this time entire circuit is started to work.Entire circuit energy is provided by L inductance and C1 late-class circuit.
The present invention removes the filter capacitor after D1, directly supplies electricity to power management chip U1, and pass through U1 connection
The decompression of BUCK circuit, capacitor C1 are storage capacitor, and C2 and C3 are conventional capacitive, and size is much smaller than the size of high-voltage electrolytic capacitor.
As Figure 3-Figure 4, the present invention can be very good to be used in brushless heat dissipation on dimensions above fan and in some small-sized equipment
There are many fan/and 80 centimeters * 25 centimeters/60 centimeters * 25 centimeters/90 centimeters * 25 centimeters, 25 centimeters are radiator fan thickness and 80 public
It is divided into length and width.And it is not influenced by capacitor size.The present invention also significantly improves the pressure resistance of entire radiator fan on this basis
Range.It is not influenced entire radiator fan circuit pressure resistance can be promoted to AC350V or so by D1 post filtering capacitor, this is tradition
Fan do not accomplished.Just because of this Optimality, increases use scope, this fan resistance to pressure is enhanced.Circuit is easy reason
Solution, pcb board processed are also easily often simple.Alternating current known on schematic diagram is powered after passing through rectifier bridge directly to power management chip U1,
Power management chip U1 can work.This circuit solves the problems, such as that high-voltage filtering capacitor can not accomplish ideal size, and this
Operating voltage range is wide, and AC90V~AC350V directly can carry successive load circuit by band.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of exchange turns high direct voltage radiator fan, including ac input end and rectifier bridge, the ac input end connects institute
State the input terminal of rectifier bridge, it is characterised in that: rectification bridge output end connection power management chip U1 and diode D2, it is described
The common end of the connection of the 4th pin capacitor C2, C3 and diode D3 of power management chip U1, capacitor C2, C3 other end connect
The first pin and second pin of power management chip U1 are connect, the other end of the diode D3 is connected through resistance R3 with inductance L
The first pin and second pin of power management chip U1；The of the other end connection power management chip U1 of the diode D2
One pin and second pin；The resistance R3 connects zener diode Z1, capacitor C1 and resistance in parallel with the common end of inductance L
The common end of R4, the zener diode Z1, capacitor C1 and resistance R4 other end ground connection, the resistance R3 and inductance L export electricity
Pressure is connect with radiator fan load circuit.
2. exchange according to claim 1 turns high direct voltage radiator fan, it is characterised in that: the ac input end it is defeated
Entering voltage range is 90V~350V.
3. exchange according to claim 1 turns high direct voltage radiator fan, it is characterised in that: the radiator fan load electricity
Road includes inductance L1, inductance L2 and resistance R5, the inductance L1, inductance L2 and resistance R5 in parallel, one end and the resistance R3 and
The common end output end of inductance L connects, other end connecting interface terminal.
4. exchange according to claim 1 turns high direct voltage radiator fan, it is characterised in that: the inductance L and capacitor C1
Electricity is provided.
5. exchange according to claim 1 turns high direct voltage radiator fan, it is characterised in that: the 4th of the rectifier bridge draws
The common end grounding of foot and diode D2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344247.8A CN110071646A (en) | 2019-04-26 | 2019-04-26 | Exchange turns high direct voltage radiator fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344247.8A CN110071646A (en) | 2019-04-26 | 2019-04-26 | Exchange turns high direct voltage radiator fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110071646A true CN110071646A (en) | 2019-07-30 |
Family
ID=67369174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344247.8A Withdrawn CN110071646A (en) | 2019-04-26 | 2019-04-26 | Exchange turns high direct voltage radiator fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110071646A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492722A (en) * | 2019-08-28 | 2019-11-22 | 阳光电源股份有限公司 | A kind of current transformer and its cooling system |
-
2019
- 2019-04-26 CN CN201910344247.8A patent/CN110071646A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492722A (en) * | 2019-08-28 | 2019-11-22 | 阳光电源股份有限公司 | A kind of current transformer and its cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204517680U (en) | A kind of interchange inputs doubleway output DC-stabilized circuit | |
| CN105515219A (en) | Current transformer-based series resonance electricity-acquiring DC source | |
| CN110071646A (en) | Exchange turns high direct voltage radiator fan | |
| CN203618173U (en) | LED lamp driving power based on primary side feedback | |
| CN202524616U (en) | Off-line constant current driver for high-power LED energy-saving lamp | |
| CN205377265U (en) | Switching power supply | |
| CN209692631U (en) | Exchange turns high direct voltage radiator fan | |
| CN203243579U (en) | Low-cost LED lamp drive power source | |
| CN203416464U (en) | Novel LED driving circuit | |
| CN208316590U (en) | A kind of novel LWD host PFC correction regulated power supply system | |
| CN208862761U (en) | A kind of power-supply circuit of ammeter | |
| CN209283087U (en) | Efficient filtering circuit and power supply output system | |
| CN203537248U (en) | Wide-input AC/DC power supply converter provided with PFC function | |
| CN208063038U (en) | A kind of power circuit | |
| CN206775206U (en) | Mains charger circuit | |
| CN202256492U (en) | Direct-current-direct current (DC-DC)-based resistance-capacitance single-phase charge control intelligent electric energy meter | |
| CN204732678U (en) | 10000 volts exchange superhigh pressure anion generator | |
| CN204205996U (en) | A kind of multiplex rectification circuit with defencive function | |
| CN218071872U (en) | Ceiling spotlight and single-stage flyback voltage reduction absorption removal driving device thereof | |
| CN209823639U (en) | High-efficiency power factor correction circuit | |
| CN107124107B (en) | No electrolytic capacitor separate AC-AC power supplies | |
| CN211830567U (en) | Lightning protection filtering power supply circuit | |
| CN202026275U (en) | Novel power supply circuit for motor control system | |
| CN203084040U (en) | Low-power single-phase electronic type multi-rate meter | |
| CN209233460U (en) | A kind of alternating current overvoltage crowbar |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190730 |