CN208805747U - A kind of novel energy-conserving input rectifying Anti-surging current circuit - Google Patents
A kind of novel energy-conserving input rectifying Anti-surging current circuit Download PDFInfo
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- CN208805747U CN208805747U CN201821709044.1U CN201821709044U CN208805747U CN 208805747 U CN208805747 U CN 208805747U CN 201821709044 U CN201821709044 U CN 201821709044U CN 208805747 U CN208805747 U CN 208805747U
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Abstract
The utility model provides a kind of novel energy-conserving input rectifying Anti-surging current circuit, when the application booting powers on, first unidirectional controllable silicon S CR1 and the second unidirectional controllable silicon S CR2 are not turned on, AC electric energy is charged by rectifier bridge and the first negative tempperature coefficient thermistor NTC1 to rear class first capacitor C1, is obtained compared with steady dc voltage.After post-stage drive circuit starting, power supply works normally, it powers simultaneously to the first rectification circuit and the second rectification circuit, first unidirectional controllable silicon S CR1 and the second unidirectional controllable silicon S CR2 work normally by inside rectifier bridge two diodes and the first negative tempperature coefficient thermistor NTC1 bypass, reduce rectifier bridge and the loss of the first negative tempperature coefficient thermistor NTC1.Its power consumption can be learnt according to Ohm's law when input current flows through the first negative tempperature coefficient thermistor NTC1 simultaneously, by SCR by its short circuit, then will flow through without electric current inside NTC, then its loss will not exist.
Description
Technical field
The utility model relates to rectify Anti-surging current circuit field, espespecially a kind of novel energy-conserving input rectifying Anti-surging electricity
Current circuit.
Background technique
Switching power circuit is in existing technology in order to reduce the power loss of NTC to improve the transfer efficiency of Switching Power Supply,
Generally use following scheme:
Scheme one:
A NTC(subzero temperature is sealed in the rectifier bridge DC output loop that AC energy is converted into DC energy by power input
Spend the thermistor of coefficient) or high-power resistance (facilitating description hereinafter referred to as NTC), then with the power of a relay
Load end is in parallel with NTC.Input voltage is to higher peak current caused by the large bulk capacitance charging in circuit upon power-up
It can be absorbed by NTC, but NTC is that resistance has certain power loss.Switching Power Supply supplies after working normally from relay of feeding
Electricity can reduce the power loss of NTC after relay is attracted NTC short circuit to improve the transfer efficiency of Switching Power Supply.
(see figure 1)
Scheme one has the disadvantage that: 1, because relay is mechanical device, it has the limitation of on-off times, so work
Service life is not grown；2, the time of disconnection and the actuation of relay is about 20mS, thus during operation can 20mS delay, can add
The current capacity of weight anti-surge circuit can damage power-supply device if repeated switching；3, the actuation and disconnection of relay
When contact be easy sparking and arcing cause poor contact, sparking can damage contact, can aggravate the damage of relay.In the mistake of arcing
Cheng Zhong, the central temperature of flame can reach up to ten thousand degrees Celsius, easily burn out the plastic shell of relay, to cause fire thing
Therefore.
Scheme two:
A NTC(subzero temperature is sealed in the rectifier bridge DC output loop that AC energy is converted into DC energy by power input
Spend the thermistor of coefficient), then with a SCR(one-way SCR) in parallel with NTC.Input voltage is in circuit upon power-up
Large bulk capacitance charge caused by higher peak current can be absorbed by NTC, but NTC is that resistance has certain power damage
Consumption.Switching Power Supply is powered after working normally from the SCR that feeds, and can reduce the power loss of NTC after SCR is by NTC short circuit.
(see figure 2)
Scheme two has the disadvantage that: 1, single silicon-controlled loss is bigger, and additional single cooling surface area is small, so can
Heat on control silicon is difficult to distribute in a short time.Semiconductor devices can accelerate to damage due to heat accumulation.2, single controllable
Silicon can only solve the loss on NTC individual devices, can not shunt to rectifier bridge, also can't resolve the loss problem of rectifier bridge,
So having very big application upgrade space in the loss for solving input rectification circuit.
Summary of the invention
To solve the above problems, the utility model provides a kind of novel energy-conserving input rectifying Anti-surging current circuit, this is specially
Sharp technology uses two rectification circuits and not only reduces the loss on NTC in terms of circuit design, also reduces rectifier bridge
Loss, improves the transfer efficiency of power supply, reduces the working loss of rectifier bridge, also mean that and can choose electric current more corpusculum
The smaller rectifier bridge of product, reduces cost.
To achieve the above object, the technical solution adopted in the utility model is to provide a kind of novel energy-conserving input rectifying wave resistance
Gush current circuit, including rectifier circuit, the first negative tempperature coefficient thermistor NTC1, first capacitor C1；First negative temperature system
One end of number thermistor NTC1 and the DC+ output end of rectifier circuit connect, and the other end is connect with one end of first capacitor C1,
The other end of the first capacitor C1 and the end GND of rectifier circuit connect；It is characterized by also including be connected to first capacitor
The driving circuit at the both ends C1, the first rectification circuit, the second rectification circuit corresponding with the first rectification circuit quantity；
Wherein first rectification circuit includes the first unidirectional controllable silicon S CR1, first resistor R1,3rd resistor R3, wherein
The first unidirectional controllable silicon S CR1 and the first negative tempperature coefficient thermistor NTC1 are parallel with one another, and the first one-way SCR
The pole A of SCR1 and the end L of rectifier circuit connect, and the pole K of the first unidirectional controllable silicon S CR1 and the DC+ of rectifier circuit are defeated
The pole G of outlet connection, the first unidirectional controllable silicon S CR1 is connected by the pole K of 3rd resistor R3 and the first unidirectional controllable silicon S CR1
It connects, the pole G of the first unidirectional controllable silicon S CR1 constitutes driving signal input by first resistor R1；
Second rectification circuit includes the second unidirectional controllable silicon S CR2, second resistance R2, the 6th resistance R6, wherein described second
Unidirectional controllable silicon S CR2 and the first negative tempperature coefficient thermistor NTC1 are parallel with one another, and the pole A of the second unidirectional controllable silicon S CR2
It being connect with the N-terminal of rectifier bridge, the pole K of the second unidirectional controllable silicon S CR2 and the DC+ output end of rectifier bridge connect, and described second
The pole G of unidirectional controllable silicon S CR2 is connect by the 6th resistance R6 with the pole K of the second unidirectional controllable silicon S CR2, and described second unidirectionally may be used
The pole G for controlling silicon SCR2 constitutes driving signal input by second resistance R2, and the output end of driving circuit is whole with first respectively
The connection of the driving signal input of current circuit and the second rectification circuit.
Further, the driving circuit is pfc circuit, wherein the pfc circuit includes auxiliary coupling coil L1, the one or two
Pole pipe D1, the second capacitor C2, wherein the positive of one end and first diode D1 of the auxiliary coupling coil L1 connect, described the
The cathode of one diode D1 is connect with the driving signal input of the first rectification circuit and the second rectification circuit respectively, and described
The anode of the first diode D1 is connect by the second capacitor C2 with the other end of coupling coil L1 is assisted, the auxiliary
The other end of coupling coil L1 is connect with the pole K of the pole K of the first unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2 respectively.
The driving circuit can also be main road pwm circuit simultaneously, and the main road pwm circuit includes transformer T1, second
Diode D2, third capacitor C3, wherein one end of the auxiliary winding of transformer T1 is connect with the anode of the second diode D2, described
The cathode of second diode D2 is connect with the driving signal input of the first rectification circuit and the second rectification circuit respectively, and institute
The anode for stating the second diode D2 is connect by third capacitor C3 with the other end of transformer T1 auxiliary winding, the transformer T1
The other end of auxiliary winding is connect with the pole K of the pole K of the first unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2 respectively.
The driving circuit can also include pfc circuit, main road pwm circuit simultaneously, wherein the input terminal of the pfc circuit
It is connect respectively with the both ends of first capacitor C1, the output end of pfc circuit is connect with the input terminal of main road pwm circuit；It is wherein described
Pfc circuit includes auxiliary coupling coil L1, first diode D1, the second capacitor C2, wherein the one of the auxiliary coupling coil L1
It holds and is connect with the anode of first diode D1, the cathode of the first diode D1 is whole with the first rectification circuit and second respectively
The driving signal input of current circuit connects, and the anode of the first diode D1 passes through the second capacitor C2 and auxiliary coupling line
Enclose L1 the other end connection, it is described auxiliary coupling coil L1 the other end respectively with the pole K of the first unidirectional controllable silicon S CR1,
The pole K of second unidirectional controllable silicon S CR2 connects；The main road pwm circuit includes transformer T1, the second diode D2, wherein transformation
The anode of one end of the auxiliary winding of device T1 and the second diode D2 are connect, and the cathode of the second diode D2 is respectively with first
The connection of the driving signal input of rectification circuit and the second rectification circuit, the other end difference of the transformer T1 auxiliary winding
It is connect with the pole K of the pole K of the first unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2.
The utility model has the beneficial effects that: when the application booting powers on, the first unidirectional controllable silicon S CR1 and the
Two unidirectional controllable silicon S CR2 are not turned on, and AC electric energy is by rectifier bridge and the first negative tempperature coefficient thermistor NTC1 to rear class the
One capacitor C1 charging, obtains compared with steady dc voltage.After post-stage drive circuit starting, power supply is worked normally, while giving first
Rectification circuit and the power supply of the second rectification circuit, the first unidirectional controllable silicon S CR1 and the second unidirectional controllable silicon S CR2 are worked normally
By two diodes and the first negative tempperature coefficient thermistor NTC1 bypass, reduction rectifier bridge and the first negative temperature inside rectifier bridge
The loss of coefficient resistance NTC1.Simultaneously when input current flows through the first negative tempperature coefficient thermistor NTC1 according to ohm
Law can learn its power consumption, by SCR by its short circuit, then will flow through without electric current inside NTC, then its loss will not
Can exist.
Detailed description of the invention
Fig. 1 is the electrical block diagram of existing the first scheme of technology.
Fig. 2 is the electrical block diagram of existing technology second scheme.
Fig. 3 is the circuit block diagram of this specific embodiment.
Fig. 4 is one of particular circuit configurations schematic diagram of this specific embodiment.
Fig. 5 is another particular circuit configurations schematic diagram of this specific embodiment.
Fig. 6 is another particular circuit configurations schematic diagram of this specific embodiment.
Drawing reference numeral explanation: 1.PFC circuit；2. main road pwm circuit.
Specific embodiment
The utility model is described in detail with Figure of description combined with specific embodiments below.
It please refers to shown in Fig. 3, about to achieve the above object, the technical solution adopted in the utility model is the utility model
A kind of novel energy-conserving input rectifying Anti-surging current circuit, including rectifier circuit, the first negative tempperature coefficient thermistor are provided
NTC1, first capacitor C1；One end of first negative tempperature coefficient thermistor NTC1 and the DC+ output end of rectifier circuit connect,
The other end is connect with one end of first capacitor C1, and the other end of the first capacitor C1 and the end GND of rectifier circuit connect；Its
It is characterized in that: further including the driving circuit for being connected to the both ends first capacitor C1, several first rectification circuits and the first rectified current
Corresponding second rectification circuit of number amount；
Wherein first rectification circuit includes the first unidirectional controllable silicon S CR1, first resistor R1,3rd resistor R3, wherein
The first unidirectional controllable silicon S CR1 and the first negative tempperature coefficient thermistor NTC1 are parallel with one another, and the first one-way SCR
The pole A of SCR1 and the end L of rectifier circuit connect, and the pole K of the first unidirectional controllable silicon S CR1 and the DC+ of rectifier circuit are defeated
The pole G of outlet connection, the first unidirectional controllable silicon S CR1 is connected by the pole K of 3rd resistor R3 and the first unidirectional controllable silicon S CR1
It connects, the pole G of the first unidirectional controllable silicon S CR1 constitutes driving signal input by first resistor R1；
Second rectification circuit includes the second unidirectional controllable silicon S CR2, second resistance R2, the 6th resistance R6, wherein described second
Unidirectional controllable silicon S CR2 and the first negative tempperature coefficient thermistor NTC1 are parallel with one another, and the pole A of the second unidirectional controllable silicon S CR2
It being connect with the N-terminal of rectifier bridge, the pole K of the second unidirectional controllable silicon S CR2 and the DC+ output end of rectifier bridge connect, and described second
The pole G of unidirectional controllable silicon S CR2 is connect by the 6th resistance R6 with the pole K of the second unidirectional controllable silicon S CR2, and described second unidirectionally may be used
The pole G for controlling silicon SCR2 constitutes driving signal input by second resistance R2, and the output end of driving circuit is whole with first respectively
The connection of the driving signal input of current circuit and the second rectification circuit.
When the application booting powers on, the first unidirectional controllable silicon S CR1 and the second unidirectional controllable silicon S CR2 are not turned on,
AC electric energy is charged by rectifier bridge and the first negative tempperature coefficient thermistor NTC1 to rear class first capacitor C1, is obtained more stable
DC voltage.After post-stage drive circuit starting, power supply is worked normally, while being supplied to the first rectification circuit and the second rectification circuit
Electricity, the first unidirectional controllable silicon S CR1 and the second unidirectional controllable silicon S CR2 are worked normally two diodes and the inside rectifier bridge
It can be learnt according to Ohm's law when one negative tempperature coefficient thermistor NTC1 crosses the first negative tempperature coefficient thermistor NTC1
Power consumption, by SCR by its short circuit, then will be flowed through without electric current inside NTC, then its loss will not exist.
It please refers to shown in Fig. 1-3, wherein in this embodiment only with first rectification circuit and one
Two rectification circuits；And can embody that this patent is more energy saving than the prior art by following Examples calculating, the reliability of product
It is higher.
Such as: input voltage 100Vac, it be 0.98.NTC is 3 Ω that power input power, which is 1000W.PF value,
Vin: input voltage Vdc: the voltage after rectification
P: input power R:NTC resistance value
Cos: PF value
Using the design of prior art one:
Input current are as follows:(1.1 formula)
Substitute into 1.1 formulas:
The loss of rectifier bridge are as follows:(1.2 formula)
Substitute into 1.2 formulas:
The loss of NTC are as follows:(1.3 formula)
Substitute into 1.3 formulas:
The total losses of rectification circuit are
(relay work)
(relay does not work)
After power work is normal, by NTC short circuit after relay work, NTC loss is 0W, and the loss of power supply is rectifier bridge
Loss be 24.48W, due to relay lead can when have pickup time of 20mS or so, so when power work but relay is also
It is not attracted normally, so in this 20mS time, if power rectifier circuit loss is that 45.68W. repeated switching is easy will be unrestrained
Gush circuit burnout.
Using the design of prior art two:
Silicon-controlled loss(1.4 formula)
Substitute into 1.4 formulas:
The total losses of rectification circuit are(1.5 formula)
(substituting into 1.5 formulas)(
After power work is normal, NTC is bypassed after SCR work, NTC loss is 0W, but SCR can be lossy, so
The loss of power supply is that being lost plus silicon-controlled loss for rectifier bridge is 29.38W.
Using the design of the art of this patent scheme:
The loss of rectifier bridge are as follows:(1.2 formula)
Substitute into 1.2 formulas:
Silicon-controlled total loss(1.4 formula)
Substitute into 1.2 formulas:
One silicon-controlled loss are as follows: Ps=/ 2(1.6 formula)
Substitute into 1.6 formulas :=7.14 ÷ 2
=3.57W
The total losses of rectification circuit are(1.7 formula)
Substitute into 1.7 formulas:
After power work is normal, the loss of power supply is that being lost plus silicon-controlled loss for rectifier bridge is 19.38W.
Since this patent scheme uses semiconductor devices one-way SCR, its turn-on time maximum is 10uS or so,
And the not limitation of on-off times, so when inrush current later can the very fast loss drop by input rectification circuit
Get off.It can be seen that the scheme of this patent design is higher than one reliability of prior art, longer life expectancy.Although existing skill
Art scheme two be also use the single silicon-controlled loss technology reduced on NTC, but by above-mentioned calculated result from the point of view of, this
Patented technology use two it is silicon-controlled and not only reduce the loss on NTC in terms of circuit design, also reduce rectifier bridge
Loss, improves the transfer efficiency of power supply.Making the working loss of rectifier bridge reduces, and also means that and can choose electric current more corpusculum
The smaller rectifier bridge of product, reduces cost.And this patent is using two silicon-controlled losses come respectively rectification circuit, it is single silicon-controlled
Calorific value there was only one silicon-controlled half of prior art, so also improving the reliability of this circuit.
It is exemplified below the driving method of SCR:
Driving method one: the driving circuit be pfc circuit 1, wherein the pfc circuit 1 include auxiliary coupling coil L1,
First diode D1, the second capacitor C2, wherein one end of the auxiliary coupling coil L1 is connect with the anode of first diode D1,
The cathode of the first diode D1 is connect with the driving signal input of the first rectification circuit and the second rectification circuit respectively,
And the anode of the first diode D1 is connect by the second capacitor C2 with the other end of coupling coil L1 is assisted, the institute
State the other end pole K with the pole K of the first unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2 respectively of auxiliary coupling coil L1
Connection.It is wherein rectified using the auxiliary coupling coil L1 on pfc circuit 1 by first diode D1, nonpolarity second capacitor C2
After filtering high-frequency impulse drive waveforms pass through first resistor R1 again, second resistance R2 respectively drive the first unidirectional controllable silicon S CR1 with
And the second unidirectional controllable silicon S CR2, and 3rd resistor R3 and the 6th resistance R6 are to discharge to unidirectional controllable silicon S CR and accelerate it
Shutdown；(see figure 4)
Driving method two: the driving circuit is main road pwm circuit 2, and the main road pwm circuit 2 includes transformer T1, the
Two diode D2, third capacitor C3, wherein one end of the auxiliary winding of transformer T1 is connect with the anode of the second diode D2, institute
The cathode for stating the second diode D2 is connect with the driving signal input of the first rectification circuit and the second rectification circuit respectively, and
The anode of the second diode D2 is connect by third capacitor C3 with the other end of transformer T1 auxiliary winding, the transformer
The other end of T1 auxiliary winding is connect with the pole K of the pole K of the first unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2 respectively.
Its principle is to be rectified with the auxiliary winding of the transformer T1 in main road pwm circuit 2 by the second diode D2, using nonpolarity
High-frequency impulse drive waveforms after third capacitor C3 filtering, then first is respectively driven unidirectionally by first resistor R1, second resistance R2
Controllable silicon SCR 1 and the second unidirectional controllable silicon S CR2, and 3rd resistor R3 and the 6th resistance R6 are to give unidirectional controllable silicon S CR
It discharges and accelerates its shutdown.(see figure 5)
Driving method three: the driving circuit be include pfc circuit 1, main road pwm circuit 2, wherein the pfc circuit 1
Input terminal is connect with the both ends of first capacitor C1 respectively, and the output end of pfc circuit 1 is connect with the input terminal of main road pwm circuit 2；
Wherein the pfc circuit 1 includes auxiliary coupling coil L1, first diode D1, the second capacitor C2, wherein the auxiliary coupling line
The positive of one end and the first diode D1 of L1 is enclosed to connect, the cathode of the first diode D1 respectively with the first rectification circuit with
And second rectification circuit driving signal input connection, and the anode of the first diode D1 by the second capacitor C2 with it is auxiliary
Help the other end of coupling coil L1 to connect, it is described auxiliary coupling coil L1 the other end respectively with the first one-way SCR
The pole the K connection of the pole K of SCR1, the second unidirectional controllable silicon S CR2；The main road pwm circuit 2 includes transformer T1, the second diode
D2, wherein one end of the auxiliary winding of transformer T1 is connect with the anode of the second diode D2, and the second diode D2's is negative
Pole is connect with the driving signal input of the first rectification circuit and the second rectification circuit respectively, the transformer T1 auxiliary winding
The other end connect respectively with the pole K of the pole K of the first unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2.(see figure 6)
Its principle is with the auxiliary coupling coil L1 on PFC inductance by first diode D1 rectification and main road pwm circuit 2
In transformer T1 auxiliary winding rectified by the second diode D2, two groups of signals converge into driving signal all the way, through nonpolarity the
High-frequency impulse drive waveforms pass through first resistor R1 again, second resistance R2 respectively drives the first one-way SCR after capacitor C2 filtering
SCR1 and the second unidirectional controllable silicon S CR2, and 3rd resistor R3 and the 6th resistance R6 are discharged simultaneously to unidirectional controllable silicon S CR
Accelerate its shutdown.
Embodiment of above is only that preferred embodiments of the present invention are described, not to the utility model
Range be defined, under the premise of not departing from the spirit of the design of the utility model, this field ordinary engineering and technical personnel to this
The various changes and improvements that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine
It protects in range.
Claims (4)
1. a kind of novel energy-conserving input rectifying Anti-surging current circuit, including rectifier circuit, the first negative temperature coefficient thermistor power
Hinder NTC1, first capacitor C1；One end of first negative tempperature coefficient thermistor NTC1 and the DC+ output end of rectifier circuit connect
It connects, the other end is connect with one end of first capacitor C1, and the other end of the first capacitor C1 and the end GND of rectifier circuit connect
It connects；It is characterized by also including the driving circuits, the first rectification circuit and the first rectified current that are connected to the both ends first capacitor C1
Corresponding second rectification circuit of number amount；
Wherein first rectification circuit includes the first unidirectional controllable silicon S CR1, first resistor R1,3rd resistor R3, wherein described
First unidirectional controllable silicon S CR1 and the first negative tempperature coefficient thermistor NTC1 are parallel with one another, and the first unidirectional controllable silicon S CR1
The pole A and the end L of rectifier circuit connect, and the pole K of the first unidirectional controllable silicon S CR1 and the DC+ output end of rectifier circuit connect
It connects, the pole G of the first unidirectional controllable silicon S CR1 is connect by 3rd resistor R3 with the pole K of the first unidirectional controllable silicon S CR1, institute
The pole G for stating the first unidirectional controllable silicon S CR1 constitutes driving signal input by first resistor R1；
Second rectification circuit includes the second unidirectional controllable silicon S CR2, second resistance R2, the 6th resistance R6, wherein described second is unidirectional
Controllable silicon SCR 2 and the first negative tempperature coefficient thermistor NTC1 are parallel with one another, and the pole A of the second unidirectional controllable silicon S CR2 with it is whole
The N-terminal connection of bridge is flowed, the pole K of the second unidirectional controllable silicon S CR2 and the DC+ output end of rectifier bridge connect, and described second is unidirectional
The pole G of controllable silicon SCR 2 is connect by the 6th resistance R6 with the pole K of the second unidirectional controllable silicon S CR2, second one-way SCR
The pole G of SCR2 by second resistance R2 constitute driving signal input, and the output end of driving circuit respectively with the first rectified current
The connection of the driving signal input of road and the second rectification circuit.
2. a kind of novel energy-conserving input rectifying Anti-surging current circuit according to claim 1, it is characterised in that: the drive
Dynamic circuit is pfc circuit, wherein the pfc circuit includes auxiliary coupling coil L1, first diode D1, the second capacitor C2,
Described in the anode of one end and first diode D1 of auxiliary coupling coil L1 connect, the cathode of the first diode D1 is distinguished
It is connect with the driving signal input of the first rectification circuit and the second rectification circuit, and the anode of the first diode D1 is logical
It crosses the second capacitor C2 and connect with the other end of coupling coil L1 is assisted, the other end for assisting coupling coil L1 is respectively with first
The pole the K connection of the pole K of unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2.
3. a kind of novel energy-conserving input rectifying Anti-surging current circuit according to claim 1, it is characterised in that: the drive
Dynamic circuit is main road pwm circuit, and the main road pwm circuit includes transformer T1, the second diode D2, third capacitor C3, wherein
The anode of one end of the auxiliary winding of transformer T1 and the second diode D2 are connect, the cathode of the second diode D2 respectively with
The connection of the driving signal input of first rectification circuit and the second rectification circuit, and the anode of the second diode D2 passes through
Third capacitor C3 is connect with the other end of transformer T1 auxiliary winding, and the other end of the transformer T1 auxiliary winding is respectively with
The pole the K connection of the pole K of one unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2.
4. a kind of novel energy-conserving input rectifying Anti-surging current circuit according to claim 1, it is characterised in that: the driving
Circuit includes pfc circuit, main road pwm circuit, wherein the input terminal of the pfc circuit connects with the both ends of first capacitor C1 respectively
It connects, the output end of pfc circuit is connect with the input terminal of main road pwm circuit；Wherein the pfc circuit includes auxiliary coupling coil
L1, first diode D1, the second capacitor C2, wherein the anode of one end of the auxiliary coupling coil L1 and first diode D1 are even
It connects, the cathode of the first diode D1 connects with the driving signal input of the first rectification circuit and the second rectification circuit respectively
It connects, and the anode of the first diode D1 is connect by the second capacitor C2 with the other end of coupling coil L1 is assisted, it is described auxiliary
The other end of coupling coil L1 is helped to connect respectively with the pole K of the pole K of the first unidirectional controllable silicon S CR1, the second unidirectional controllable silicon S CR2
It connects；The main road pwm circuit includes transformer T1, the second diode D2, wherein one end of the auxiliary winding of transformer T1 and the
Two diode D2 anode connection, the cathode of the second diode D2 respectively with the first rectification circuit and the second rectification circuit
Driving signal input connection, the other end of the transformer T1 auxiliary winding K with the first unidirectional controllable silicon S CR1 respectively
The pole the K connection of pole, the second unidirectional controllable silicon S CR2.
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| CN201821709044.1U CN208805747U (en) | 2018-10-22 | 2018-10-22 | A kind of novel energy-conserving input rectifying Anti-surging current circuit |
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| CN201821709044.1U CN208805747U (en) | 2018-10-22 | 2018-10-22 | A kind of novel energy-conserving input rectifying Anti-surging current circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110543225A (en) * | 2019-07-31 | 2019-12-06 | 苏州浪潮智能科技有限公司 | power supply hot plug module |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110543225A (en) * | 2019-07-31 | 2019-12-06 | 苏州浪潮智能科技有限公司 | power supply hot plug module |
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