CN209472801U - A kind of LED daylight lamp circuit of compatible alternating current and electric ballast - Google Patents
A kind of LED daylight lamp circuit of compatible alternating current and electric ballast Download PDFInfo
- Publication number
- CN209472801U CN209472801U CN201822005651.6U CN201822005651U CN209472801U CN 209472801 U CN209472801 U CN 209472801U CN 201822005651 U CN201822005651 U CN 201822005651U CN 209472801 U CN209472801 U CN 209472801U
- Authority
- CN
- China
- Prior art keywords
- circuit
- diode
- cathode
- anode
- led
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses the LED daylight lamp circuits of a kind of compatible alternating current and electric ballast, including high-frequency rectification circuit, EMI circuit, LED illuminating circuit, filter circuit, filament match circuit, voltage triggering circuit, buck constant-current circuit, controlled rectification circuit and the high frequency turning circuit for the alternating current inputted in it to be converted to direct current electricity output, when high frequency turning circuit accesses alternating current low frequency ac, in breaking high-impedance state, when the high frequency voltage of the high frequency turning circuit access electric ballast, in short-circuit on state；Advantage is when using as B class LED daylight lamp circuit, alternating current is accessed using single-ended input fashion, and its just use same anti-electric-shocking circuit when using as A class LED daylight lamp and B class LED daylight lamp, thus, for the utility model on the basis of guaranteeing to install safety, cost is relatively low.
Description
Technical field
The utility model relates to a kind of LED daylight lamp circuit, more particularly, to a kind of compatible alternating current and electric ballast
LED daylight lamp circuit.
Background technique
Traditional fluorescent lamp generally includes lamp bracket and fluorescent tube, and the appearance of fluorescent tube is as shown in Figure 1, traditional day
Light lamp tube is usually cylinder structure, and including tube body and internally positioned daylight lamp circuit, tube body both ends are respectively provided with two connections
Pin (P1 and P2, P3 and P4) connects pin P1, P2, P3 and P4 for tubular body when fluorescent tube is mounted on lamp bracket
Daylight lamp circuit links together with external circuit (alternating current or ballast).In recent years, has the advantages that the LED day of environmental protection and energy saving
Light lamp has obtained increasingly with being widely applied.LED daylight lamp includes lamp bracket and LED fluorescent lamp tube, although LED fluorescent lamp tube with
Traditional fluorescent tube has similar shape, but the circuit of the two has different principle of luminosity.
In LED daylight lamp industry, the LED daylight lamp that ballast uses can be matched and be called A class LED daylight lamp,
Due to the constraint by existing lamp bracket, the fluorescent tube of A class LED daylight lamp has a double-width grinding, i.e. the voltage of ballast output be from
In the both ends input LED daylight lamp circuit of LED fluorescent lamp tube.It can be directly connected to the LED day of alternating current work without ballast
Light lamp is called B class LED daylight lamp.B class LED daylight lamp has two types: single ended input type and double-width grinding type, in list
It holds in imported B class LED daylight lamp, the firewire and zero curve of alternating current, is connected solely to two connections of B class LED fluorescent lamp tube one end
Pin, and the two of B class LED fluorescent lamp tube other end connection pins are not connected to external circuit；In double-width grinding type B class LED daylight
In lamp, the firewire and zero curve of alternating current are connected respectively on any connection pin at B class LED fluorescent lamp tube both ends.For both-end
The LED daylight lamp of input, the LED daylight lamp circuit inside fluorescent tube are electrical connections.When the LED fluorescent lamp tube is installed,
Generally all first the connection pin of LED fluorescent lamp tube one end be plugged into lamp bracket one end setting be used for LED fluorescent lamp tube is installed
On one socket, then again the connection pin of the other end of LED fluorescent lamp tube be plugged into the setting of the lamp bracket other end for pacifying
On a socket for filling LED fluorescent lamp tube.In this mounting, when the power switch connecting with lamp bracket is in opening state
When, if it is another to accidentally touch LED fluorescent lamp tube when the connection pin for being plugged LED fluorescent lamp tube one end for installation personnel
When the connection pin of one end, galvanic circle is formed between power supply, human body and LED fluorescent lamp tube at this time, then installation personnel holds very much
It is easily electrically shocked, causes personal injury.
As shown in Fig. 2, the B class LED daylight lamp circuit of existing single ended input generally includes rectification circuit, EMI circuit, drop
Constant-current circuit, filter circuit, LED illuminating circuit and filament match circuit are pressed, there is rectification circuit firewire input terminal, zero curve to input
End, output and ground are realized using common full bridge rectifier, the alternating voltage of input can be transformed into fluctuation very
Big DC voltage；Being depressured constant-current circuit has input, output end and ground terminal, and decompression constant-current circuit is a kind of high frequency voltage
Current conversion circuit exports the DC voltage conversion inputted in it in output end at the DC current of constant size；EMI electricity
Road has positive input terminal, negative input end, positive output end and negative output terminal, the high frequency waves that EMI circuit generates decompression constant-current circuit
It filters, reduces the High-frequency Interference to power grid；Filter circuit has anode and cathode, the voltage that filter circuit can be very big fluctuation
Or current transformation is the lesser voltage of an equal amount of fluctuation or electric current；LED illuminating circuit has anode and cathode；Filament matching
Circuit has first port and second port, and the firewire input terminal of rectification circuit is used to connect one of LED fluorescent lamp tube one end
Pin P1 is connected, the zero curve input terminal of rectification circuit is used to connect another connection pin P2 of LED fluorescent lamp tube one end, rectification
The output end of circuit is connected with the positive input terminal of EMI circuit, and the ground terminal of rectification circuit is connect with the negative input end of EMI circuit,
The positive output end of EMI circuit is connected with the input terminal of decompression constant-current circuit, the negative output terminal of EMI circuit, filter circuit cathode,
The cathode of LED illuminating circuit is connected with the ground terminal of decompression constant-current circuit, and the output end that is depressured constant-current circuit, filter circuit are just
The anode connection of pole and LED illuminating circuit, the first port of filament match circuit is for connecting the one of the LED fluorescent lamp tube other end
A connection pin P3, the second port of filament match circuit are used to connect another connection pin of the LED fluorescent lamp tube other end
P4。
As shown in figure 3, existing A class LED daylight lamp circuit includes high-frequency rectification circuit, filter circuit, LED illuminating circuit
With the anti-electric-shocking circuit of A class.High-frequency rectification circuit has first input end, the second input, output end and ground terminal, high-frequency rectification
Circuit can be converted to the high-frequency alternating current inputted in it in the direct current of high-frequency fluctuation, and filter circuit has anode and cathode,
It can be the lesser voltage of an equal amount of fluctuation or electric current, LED illuminating circuit tool very big voltage or current transformation is fluctuated
There are anode and cathode, voltage triggering circuit circuit has anode and cathode, voltage triggering circuit are a kind of voltage triggered electric conductions
Road is connected, when flowing through when voltages of its anode and cathode both ends are more than voltage triggered threshold value in it between anode and cathode
When its anode and the electric current of cathode two-port are less than voltage triggered threshold, high resistant shape is returned between anode and cathode
State, voltage triggering circuit are a kind of normally opened devices.The first input end of high-frequency rectification circuit is for connecting LED fluorescent lamp tube one end
Connection pin P1, the second input terminal of high-frequency rectification circuit is used to connect the connection pin P4 of the LED fluorescent lamp tube other end, high
The anode connection of the output end of frequency rectification circuit, the anode of filter circuit and LED illuminating circuit；Cathode, the LED hair of filter circuit
The anode connection of the cathode and voltage triggering circuit of optical circuit；The cathode of voltage triggering circuit and the ground terminal of high-frequency rectification circuit
Connection.
Since A class LED daylight lamp is similar with B class LED daylight lamp shape, it is easy to there is alias condition, once obscure, it will
Normal use can not be matched with lamp bracket, and safety accident can even occur when serious.It can be simultaneously for this purpose, occurring one kind on the market
Compatible alternating current and ballast, have the function of the use of A class LED daylight lamp and B class LED daylight lamp, according to the actual conditions of connection,
A kind of LED daylight lamp of suitable operating mode is selected, such LED daylight lamp is called A+B class LED daylight lamp.This kind of day
Light lamps and lanterns have using versatility, are conducive to client's stock and stock control.It is existing to be compatible with alternating current and ballast LED simultaneously
In daylight lamp circuit, A class LED daylight lamp uses the mode of double-width grinding, if B class LED daylight lamp uses and both-end is defeated
Enter mode, then A class LED daylight lamp and B class LED daylight lamp respectively have independent anti-electric shock electricity in A+B class LED daylight lamp
Thus road leads to its higher cost.
Utility model content
The technical problem to be solved by the utility model is to provide one kind guarantee install safety on the basis of, cost compared with
The LED daylight lamp circuit of low compatibility alternating current and electric ballast.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of compatible alternating current and electric ballast
LED daylight lamp circuit, including high-frequency rectification circuit, the EMI for the alternating current inputted in it to be converted to direct current electricity output
Circuit, LED illuminating circuit, filter circuit, filament match circuit and voltage triggering circuit, the high-frequency rectification circuit have fire
Line input terminal, zero curve input, output end and ground terminal, the EMI circuit have positive input terminal, negative input end, positive output
End and negative output terminal, the LED illuminating circuit, the filter circuit and the voltage triggering circuit are respectively provided with anode
And cathode, the filament match circuit have first port and second port, the compatibility alternating current and electric ballast
LED daylight lamp circuit further includes buck constant-current circuit, controlled rectification circuit and high frequency turning circuit, the buck constant current
Circuit has input terminal, ground terminal, positive output end and negative output terminal, and the high frequency turning circuit has input terminal and output
End, when the high frequency turning circuit accesses alternating current low frequency ac, in breaking high-impedance state, the high frequency turning circuit
When accessing the high frequency voltage of electric ballast, in short-circuit on state, the controlled rectification circuit have first input end,
Second input terminal, positive output end, negative output terminal, positive control end and negative control end, the firewire input of the high-frequency rectification circuit
End is connected with the input terminal of the high frequency turning circuit, the output end of the high-frequency rectification circuit and the EMI circuit
Positive input terminal connection, the ground terminal of the high-frequency rectification circuit is connected with the negative input end of the EMI circuit, described
The positive output end of EMI circuit is connected with the input terminal of the buck constant-current circuit, the negative output terminal of the EMI circuit and
The ground terminal of the buck constant-current circuit connects, the positive output end of the buck constant-current circuit, described controllable whole
The anode connection of the positive output end of current circuit, the anode of the filter circuit and the LED illuminating circuit, the lifting
Press the negative output terminal of constant-current circuit, the negative output terminal of the controlled rectification circuit, the cathode of the filter circuit and described
LED illuminating circuit cathode connection, the second input terminal of the controlled rectification circuit and the high frequency turning circuit
Output end connection, the first input end of the controlled rectification circuit are connected with the second port of the filament match circuit,
The positive control end of the controlled rectification circuit and the anode connection of the voltage triggering circuit, the controlled rectification circuit
Negative control end connected with the cathode of the voltage triggering circuit.
The buck constant-current circuit include the first IC chip, first capacitor, the second capacitor, first resistor,
Second resistance, 3rd resistor, the first inductance, first diode and the second diode, the core of first IC chip
Piece model MT7845, the first diode and second diode are high-frequency rectification diode, and described
5th foot of one IC chip and the connection of the 6th foot and its connecting pin are the input terminal of the buck constant-current circuit, described
The 1st foot of the first IC chip connected with one end of the first capacitor, first IC chip
2nd foot, the first resistor one end connected with one end of the second resistance, first IC chip
3rd foot is connected with one end of second capacitor, the 4th foot of first IC chip, the one or two pole
The cathode of pipe is connected with one end of the 3rd resistor, the other end of the first capacitor, the first resistor it is another
One end, the other end of second capacitor, the 7th foot of first IC chip, the 3rd resistor it is another
One end is connected with one end of first inductance, the other end of the other end of the second resistance, first inductance
Anode connection and its connecting pin with second diode are the ground terminal of the buck constant-current circuit, described the
The negative output terminal of the just extremely described buck constant-current circuit of one diode, the cathode of second diode is described
The positive output end of buck constant-current circuit.
The controlled rectification circuit includes third diode, the 4th diode, the 5th diode, the 6th diode,
Seven diodes and the 8th diode, it is the third diode, the 4th diode, the 5th diode, described
The 6th diode, the 7th diode and the 8th diode be high-frequency rectification diode, the third
The anode of the cathode of diode and the 4th diode connects and its connecting pin is the second input terminal of the controlled rectification circuit,
The anode of 7th diode is connected with the cathode of the 8th diode and its connecting pin is the controlled rectification
The cathode of the first input end of circuit, the 4th diode is connected with the cathode of the 6th diode and its connecting pin
For the positive output end of the controlled rectification circuit, the anode of the third diode and the anode of the 5th diode
Connection and its connecting pin are the negative output terminal of the controlled rectification circuit, the cathode of the 5th diode and described the
The cathode of seven diodes connects and its connecting pin is the positive control end of the controlled rectification circuit, the 6th diode
The anode of the 8th positive and described diode connects and its connecting pin is the negative control end of the controlled rectification circuit.The electricity
Road can control ac high-frequency voltage in controlled rectification electricity with the voltage triggering circuit of low frequency in a manner of high voltage triggering and conducting
Direct current output after the rectification of road, control principle is simple, and structure is simple, and cost is relatively low.
The high frequency turning circuit includes third capacitor, and one end of the third capacitor is the high frequency electric conduction
The input terminal on road, the other end of the third capacitor are the output end of the high frequency turning circuit.
The voltage triggering circuit includes the 4th resistance, the 5th resistance and the 9th diode, the 9th diode
One end for discharge diode, the 9th diode is connected with one end of the 4th resistance and its connecting pin is described
Voltage triggering circuit anode, the other end of the 4th resistance is connected with one end of the 5th resistance, described
The other end of 5th resistance is connected with the other end of the 9th diode and its connecting pin is the voltage triggering circuit
Cathode.
The EMI circuit includes the 4th capacitor, the 5th capacitor, the 6th resistance, the 7th resistance, the second inductance and third electricity
Sense, one end of the 4th capacitor, one end of the 6th resistance are connected with one end of second inductance and it connects
Meet the positive input terminal that end is the EMI circuit, the other end of the 4th capacitor, one end of the 7th resistance and institute
One end of the third inductance stated connects and its connecting pin is the negative input end of the EMI, the other end of second inductance,
The other end of 6th resistance connected with one end of the 5th capacitor and its connecting pin be the EMI circuit just
Output end, the other end, the other end of the 7th resistance and the other end of the third inductance of the 5th capacitor
Connection and its connecting pin are the negative output terminal of the EMI circuit.
The high-frequency rectification circuit includes the tenth diode, the 11st diode, the 12nd diode and the 13rd
Pole pipe, the tenth diode, the 11st diode, the 12nd diode and the 13rd pole
Pipe is high-frequency rectification diode, and the anode of the tenth diode is connected with the cathode of the 11st diode and it
Connecting pin is the firewire input terminal of the high-frequency rectification circuit, the anode of the 12nd diode and the described the 13rd
The cathode of diode connects and its connecting pin is the zero curve input terminal of the high-frequency rectification circuit, the tenth diode
Cathode is connected with the cathode of the 12nd diode and its connecting pin is the output end of the high-frequency rectification circuit, described
The 11st diode anode and the 13rd diode anode connection and its connecting pin be the high-frequency rectification
The ground terminal of diode.
The filter circuit includes the 6th capacitor and the 8th resistance, and the 6th capacitor is electrolytic capacitor, described
The anode of 6th capacitor is connected with one end of the 8th resistance and its connecting pin is the anode of the filter circuit, described
The 6th capacitor cathode connected with the other end of the 8th resistance and its connecting pin be the filter circuit cathode.
The filament match circuit includes the 4th inductance, and the both ends of the 4th inductance are respectively the filament
First port and second port with circuit.
The LED illuminating circuit includes at least one LED luminescence unit, and each LED luminescence unit wraps respectively
N LED lamp bead is included, n is the integer more than or equal to 2, and cathode and the m+1 lamp bead of lamp bead described in m-th are just
Pole connection, m=1,2 ..., n-1, the anode of the just extremely described LED luminescence unit of lamp bead described in the 1st, described in n-th
Lamp bead cathode be the LED luminescence unit cathode, all LED luminescence units anode connection and its connecting pin be
The cathode of the anode of the LED illuminating circuit, all LED luminescence units connects and its connecting pin shines for the LED
The cathode of circuit.
Compared with prior art, electric the utility model has the advantage of being shone by high-frequency rectification circuit, EMI circuit, LED
Road, filter circuit, filament match circuit, voltage triggering circuit, buck constant-current circuit, controlled rectification circuit and high frequency electric conduction
Road constructs the LED daylight lamp circuit of compatible alternating current and electric ballast, and high-frequency rectification circuit can be the alternating current inputted in it
Pressure or current transformation can convert the voltage inputted in it at very big DC voltage or electric current, buck constant-current circuit is fluctuated
For the high-frequency pulse current of constant size, EMI circuit is used to eliminate the high-frequency signal pair generated when the work of buck constant-current circuit
The function of power grid interference, filter circuit are an equal amount of lesser electricity of fluctuation for that will fluctuate very big voltage or current transformation
Pressure or electric current, when the voltage between the anode and cathode of voltage triggering circuit is more than the voltage turn-on threshold value set in it, just
It is connected between pole and cathode, is otherwise then in high-impedance state, high frequency turning circuit is when inputting alternating current low frequency ac, in disconnected
Road high-impedance state, and when inputting the high frequency voltage of electric ballast, in short-circuit on state, the firewire of high-frequency rectification circuit
The connection pin P1 connection of input terminal and LED fluorescent lamp tube one end, the zero curve input terminal and LED fluorescent lamp tube of high-frequency rectification circuit
Another connection pin P2 connection of one end, the connection of the other end of the second port and LED fluorescent lamp tube of filament match circuit are drawn
Foot P4 connection, the first port of filament match circuit and the connection pin P3 connection of the LED fluorescent lamp tube other end, when LED daylight
Circuit for lamp is as B class LED daylight lamp circuit in use, B class LED fluorescent lamp tube is connected to using single-ended alternating current input mode at this time
Lamp bracket accesses alternating current, and the output end of high-frequency rectification circuit exports DC voltage, supplies after EMI circuit to buck constant-current circuit
The voltage inputted in it is converted to the high-frequency pulse current of constant size by electricity, buck constant-current circuit, and high-frequency electrical pulses flow through
The voltage that filter circuit becomes smooth is powered to LED illuminating circuit, and LED illuminating circuit shines, in the above-mentioned course of work, because
High frequency turning circuit is connected to the low-frequency voltage of alternating current, is in off state, and the anode of voltage triggering circuit and cathode both ends do not have
There is addition voltage that cannot be connected, controlled rectification circuit output is in disconnected state, so high frequency turning circuit, voltage triggering circuit are electric
Road and controlled rectification circuit do not influence the normal work of the remaining circuit of LED daylight lamp, when LED daylight lamp circuit is as A class
LED daylight lamp circuit is in use, A class LED fluorescent lamp tube is connected to the lamp bracket of electric ballast, LED using double-width grinding mode
The high frequency voltage of the electric ballast of connection pin P1 and the P4 access of fluorescent tube, the high frequency voltage pass through high frequency turning circuit
It is loaded into the first input end and the second input terminal of controlled rectification circuit, after the rectification of controlled rectification circuit internal high frequency,
High direct voltage is exported between the positive control end and negative control end of controlled rectification circuit, when this high direct voltage is greater than voltage triggering circuit
Conducting voltage threshold value when, it is short-circuit between the anode and cathode of voltage triggering circuit, then in the positive output of controlled rectification circuit
End exports DC voltage, while electric ballast is changed into constant current output state from High voltage output state, at this time electric ballast
The high frequency alternating constant current of output by high frequency turning circuit and controlled rectification circuit rectification after, controlled rectification circuit just
Output end is exported with the DC current of the constant size of high-frequency fluctuation, after filter circuit, to LED illuminating circuit provide fluctuation compared with
Small DC current makes LED illuminating circuit shine, and the controlled rectification circuit and voltage triggering circuit of the utility model constitute anti-electric
Hit circuit, as B class fluorescent lamp in use, the anti-electric-shocking circuit as the anti-electric shock circuit blocks LED fluorescent lamp tube both ends of B class it
Between electrical connection, avoid installation personnel from getting an electric shock, used as A class fluorescent lamp, installation when, which makees again
For the anti-electric-shocking circuit of A class, accidental shock is prevented, the utility model is as B class LED daylight lamp circuit in use, using single-ended defeated
Enter mode and access alternating current, and when it is used as A class LED daylight lamp and B class LED daylight lamp is just electric using the same anti-electric shock
Road, for the utility model on the basis of guaranteeing to install safety, cost is relatively low as a result,.
Detailed description of the invention
Fig. 1 is the outside drawing of traditional fluorescent tube；
Fig. 2 is the structural principle block diagram of existing B class LED daylight lamp circuit；
Fig. 3 is the structural principle block diagram of existing A class LED daylight lamp circuit；
Fig. 4 is the structural principle block diagram of the compatibility alternating current of the utility model and the LED daylight lamp circuit of electric ballast；
Fig. 5 is the circuit diagram of the compatibility alternating current of the utility model and the LED daylight lamp circuit of electric ballast.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
Embodiment one: as shown in figure 4, the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast, including being used for will
The alternating current inputted in it be converted to the high-frequency rectification circuit of direct current electricity output, EMI circuit, LED illuminating circuit, filter circuit,
Filament match circuit and voltage triggering circuit, high-frequency rectification circuit have firewire input terminal, zero curve input, output end and ground connection
End, EMI circuit have positive input terminal, negative input end, positive output end and negative output terminal, LED illuminating circuit, filter circuit and voltage
Trigger circuit is respectively provided with anode and cathode, and filament match circuit has first port and second port, compatible alternating current and electronics
The LED daylight lamp circuit of ballast further includes buck constant-current circuit, controlled rectification circuit and high frequency turning circuit, and buck is permanent
Current circuit has input terminal, ground terminal, positive output end and negative output terminal, and high frequency turning circuit has input terminal and output end, high
When frequency turning circuit accesses alternating current low frequency ac, in breaking high-impedance state, high frequency turning circuit accesses electric ballast
When high frequency voltage, in short-circuit on state, controlled rectification circuit has first input end, the second input terminal, positive output end, bears
The firewire input terminal at output end, positive control end and negative control end, high-frequency rectification circuit is connected with the input terminal of high frequency turning circuit,
The output end of high-frequency rectification circuit is connected with the positive input terminal of EMI circuit, the ground terminal of high-frequency rectification circuit and bearing for EMI circuit
Input terminal connection, the positive output end of EMI circuit connect with the input terminal of buck constant-current circuit, the negative output terminal of EMI circuit with
The ground terminal of buck constant-current circuit connects, the positive output end of buck constant-current circuit, the positive output end of controlled rectification circuit, filter
The anode connection of the anode and LED illuminating circuit of wave circuit, the negative output terminal of buck constant-current circuit, controlled rectification circuit it is negative
Output end, filter circuit cathode connected with the cathode of LED illuminating circuit, the second input terminal and high frequency of controlled rectification circuit are led
The output end of circuit passband connects, and the first input end of controlled rectification circuit is connected with the second port of filament match circuit, controllably
The positive control end of rectification circuit and the anode connection of voltage triggering circuit, the negative control end of controlled rectification circuit and voltage triggered electricity
The cathode on road connects.
Embodiment two: the present embodiment is basically the same as the first embodiment, and difference is:
As shown in figure 5, in the present embodiment, buck constant-current circuit include the first IC chip U1, first capacitor C1,
Second capacitor C2, first resistor R1, second resistance R2,3rd resistor R3, the first inductance L1, first diode D1 and the two or two pole
The chip model of pipe D2, the first IC chip U1 are that MT7845, first diode D1 and the second diode D2 are high frequency
Rectifier diode, the 5th foot of the first IC chip U1 and the 6th foot connect and its connecting pin is the defeated of buck constant-current circuit
Entering end, the 1st foot of the first IC chip U1 is connected with one end of first capacitor C1, and the 2nd of the first IC chip U1 the
Foot, first resistor R1 one end connected with one end of second resistance R2, the 3rd foot and the second capacitor of the first IC chip U1
One end of C2 connects, and one end of the 4th foot of the first IC chip U1, the cathode of first diode D1 and 3rd resistor R3 connects
It connects, the other end, the other end of first resistor R1, the other end of the second capacitor C2, the first IC chip of first capacitor C1
One end of the 7th foot of U1, the other end of 3rd resistor R3 and the first inductance L1 connects, the other end of second resistance R2, the first electricity
Feel L1 the other end and the second diode D2 anode connection and its connecting pin be buck constant-current circuit ground terminal, the one or two
The just extremely negative output terminal of buck constant-current circuit of pole pipe D1, the cathode of the second diode D2 be buck constant-current circuit just
Output end.
In the present embodiment, controlled rectification circuit includes third diode D3, the 4th diode D4, the 5th diode D5,
Six diode D6, the 7th diode D7 and the 8th diode D8, third diode D3, the 4th diode D4, the 5th diode D5,
6th diode D6, the 7th diode D7 and the 8th diode D8 are high-frequency rectification diode, the cathode of third diode D3
Anode connection and its connecting pin with the 4th diode D4 are the second input terminal of controlled rectification circuit, and the 7th diode D7 is just
Pole is connected with the cathode of the 8th diode D8 and its connecting pin is the first input end of controlled rectification circuit, the 4th diode D4's
The connection of the cathode of cathode and the 6th diode D6 and its connecting pin are the positive output end of controlled rectification circuit, third diode D3's
The anode of anode and the 5th diode D5 connect and its connecting pin is the negative output terminal of controlled rectification circuit, the 5th diode D5's
The connection of the cathode of cathode and the 7th diode D7 and its connecting pin are the positive control end of controlled rectification circuit, the 6th diode D6's
The anode of anode and the 8th diode D8 connect and its connecting pin is the negative control end of controlled rectification circuit.
In the present embodiment, high frequency turning circuit includes third capacitor C3, and one end of third capacitor C3 is high frequency turning circuit
Input terminal, the other end of third capacitor C3 is the output end of high frequency turning circuit.
In the present embodiment, voltage triggering circuit include the 4th resistance R4, the 5th resistance R5 and the 9th diode D9, the 9th 2
Pole pipe D9 is discharge diode, and one end of the 9th diode D9 is connected with one end of the 4th resistance R4 and its connecting pin is voltage touching
One end connection of the anode of Power Generation Road, the other end of the 4th resistance R4 and the 5th resistance R5, the other end of the 5th resistance R5 and the
The other end of nine diode D9 connects and its connecting pin is the cathode of voltage triggering circuit.
In the present embodiment, EMI circuit includes the 4th capacitor C4, the 5th capacitor C5, the 6th resistance R6, the 7th resistance R7, the
Two inductance L2 and third inductance L3, one end of the 4th capacitor C4, one end of the 6th resistance R6 are connected with one end of the second inductance L2
And its connecting pin is the positive input terminal of EMI circuit, the other end of the 4th capacitor C4, one end of the 7th resistance R7 and third inductance L3
One end connection and its connecting pin be EMI negative input end, the other end of the second inductance L2, the other end of the 6th resistance R6 and the
One end of five capacitor C5 connects and its connecting pin is the positive output end of EMI circuit, the other end, the 7th resistance R7 of the 5th capacitor C5
The other end connected with the other end of third inductance L3 and its connecting pin be EMI circuit negative output terminal.
In the present embodiment, high-frequency rectification circuit includes the tenth diode D10, the 11st diode D11, the 12nd diode
D12 and the 13rd diode D13, the tenth diode D10, the 11st diode D11, the 12nd diode D12 and the 13rd
Pole pipe D13 is high-frequency rectification diode, and the anode of the tenth diode D10 is connected with the cathode of the 11st diode D11 and it
Connecting pin is the firewire input terminal of high-frequency rectification circuit, the anode of the 12nd diode D12 and the cathode of the 13rd diode D13
Connection and its connecting pin are the zero curve input terminal of high-frequency rectification circuit, the cathode and the 12nd diode D12 of the tenth diode D10
Cathode connection and its connecting pin be high-frequency rectification circuit output end, the 11st diode D11 anode and the 13rd pole
The anode of pipe D13 connects and its connecting pin is the ground terminal of high-frequency rectification diode.
In the present embodiment, filter circuit includes the 6th capacitor C6 and the 8th resistance R8, and the 6th capacitor C6 is electrolytic capacitor, the
The anode of six capacitor C6 is connected with one end of the 8th resistance R8 and its connecting pin is the anode of filter circuit, and the 6th capacitor C6's is negative
Pole is connected with the other end of the 8th resistance R8 and its connecting pin is the cathode of filter circuit.
In the present embodiment, filament match circuit includes the 4th inductance L4, and the both ends of the 4th inductance L4 are respectively filament matching
The first port and second port of circuit.
In the present embodiment, LED illuminating circuit includes a LED luminescence unit, and LED luminescence unit includes n LED lamp bead, n
For the integer more than or equal to 2, the cathode of m-th lamp bead and the anode connection of the m+1 lamp bead, m=1,2 ..., n-1, the 1st
The just extremely anode of LED luminescence unit of lamp bead, the cathode of n-th of lamp bead are the cathode of LED luminescence unit, LED luminescence unit
The just extremely anode of LED illuminating circuit, the cathode of LED luminescence unit is the cathode of LED illuminating circuit.
Claims (10)
1. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast, including the alternating current conversion for that will input in it
For the touching of the high-frequency rectification circuit of direct current electricity output, EMI circuit, LED illuminating circuit, filter circuit, filament match circuit and voltage
Power Generation Road, the high-frequency rectification circuit have firewire input terminal, zero curve input, output end and ground terminal, the EMI electricity
Road have positive input terminal, negative input end, positive output end and negative output terminal, the LED illuminating circuit, the filter circuit and
The voltage triggering circuit is respectively provided with anode and cathode, and the filament match circuit has first port and second end
Mouthful, it is characterised in that the LED daylight lamp circuit of the compatibility alternating current and electric ballast further includes buck constant-current circuit, can
Control rectifying circuit and high frequency turning circuit, the buck constant-current circuit have input terminal, ground terminal, positive output end and bear defeated
Outlet, the high frequency turning circuit have input terminal and output end, and the high frequency turning circuit accesses alternating current low-frequency ac
When electric, led when the high frequency turning circuit accesses the high frequency voltage of electric ballast in short circuit in breaking high-impedance state
Logical state, the controlled rectification circuit have first input end, the second input terminal, positive output end, negative output terminal, positive control end
With negative control end, the firewire input terminal of the high-frequency rectification circuit is connected with the input terminal of the high frequency turning circuit, institute
The output end for the high-frequency rectification circuit stated is connected with the positive input terminal of the EMI circuit, and the high-frequency rectification circuit connects
Ground terminal is connected with the negative input end of the EMI circuit, the positive output end of the EMI circuit and the buck Constant Electric Current
The input terminal on road connects, and the negative output terminal of the EMI circuit is connected with the ground terminal of the buck constant-current circuit, described
The positive output end of buck constant-current circuit, the positive output end of the controlled rectification circuit, the filter circuit anode
With the anode connection of the LED illuminating circuit, the negative output terminal of the buck constant-current circuit, the controlled rectification electricity
The negative output terminal on road, the filter circuit cathode connected with the cathode of the LED illuminating circuit, the controlled rectification
Second input terminal of circuit is connected with the output end of the high frequency turning circuit, the first input of the controlled rectification circuit
End is connected with the second port of the filament match circuit, the positive control end of the controlled rectification circuit and the voltage
The anode connection of trigger circuit, the negative control end of the controlled rectification circuit and the cathode of the voltage triggering circuit connect
It connects.
2. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that institute
The buck constant-current circuit stated includes the first IC chip, first capacitor, the second capacitor, first resistor, second resistance, the
The chip model of three resistance, the first inductance, first diode and the second diode, first IC chip is
MT7845, the first diode and second diode are high-frequency rectification diode, the described first integrated electricity
5th foot of road chip and the connection of the 6th foot and its connecting pin are the input terminal of the buck constant-current circuit, first collection
It is connected at the 1st foot of circuit chip with one end of the first capacitor, the 2nd foot of first IC chip, institute
The one end for the first resistor stated is connected with one end of the second resistance, the 3rd foot of first IC chip and
One end of second capacitor connects, the cathode of the 4th foot of first IC chip, the first diode
It is connected with one end of the 3rd resistor, the other end, described of the other end of the first capacitor, the first resistor
The other end of the second capacitor, the 7th foot of first IC chip, the other end of the 3rd resistor and described
The first inductance one end connection, the other end of the second resistance, the other end of first inductance and described the
The anode of two diodes connects and its connecting pin is the ground terminal of the buck constant-current circuit, the first diode
The just negative output terminal of the extremely described buck constant-current circuit, the cathode of second diode are the buck constant current
The positive output end of circuit.
3. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that institute
The controlled rectification circuit stated include third diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode and
8th diode, the third diode, the 4th diode, the 5th diode, the six or two pole
Pipe, the 7th diode and the 8th diode are high-frequency rectification diode, and the third diode is born
The anode connection of pole and the 4th diode and its connecting pin are the second input terminal of the controlled rectification circuit, the described the 7th
The anode of diode is connected with the cathode of the 8th diode and its connecting pin is the first of the controlled rectification circuit
The cathode of input terminal, the 4th diode is connected with the cathode of the 6th diode and its connecting pin can for described
The positive output end of control rectifying circuit, the anode of the third diode and the anode of the 5th diode connect and it connects
Connect the negative output terminal that end is the controlled rectification circuit, the cathode of the 5th diode and the 7th diode
Cathode connection and its connecting pin be the controlled rectification circuit positive control end, the 6th diode anode and it is described
The 8th diode anode connection and its connecting pin be the controlled rectification circuit negative control end.
4. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that institute
The high frequency turning circuit stated includes third capacitor, and one end of the third capacitor is the input of the high frequency turning circuit
End, the other end of the third capacitor are the output end of the high frequency turning circuit.
5. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that institute
The voltage triggering circuit stated includes the 4th resistance, the 5th resistance and the 9th diode, and the 9th diode is two poles of electric discharge
Pipe, one end of the 9th diode is connected with one end of the 4th resistance and its connecting pin is the voltage triggered
The other end of the anode of circuit, the 4th resistance is connected with one end of the 5th resistance, the 5th resistance
The other end is connected with the other end of the 9th diode and its connecting pin is the cathode of the voltage triggering circuit.
6. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that institute
The EMI circuit stated includes the 4th capacitor, the 5th capacitor, the 6th resistance, the 7th resistance, the second inductance and third inductance, described
One end of 4th capacitor, the 6th resistance one end connected with one end of second inductance and its connecting pin is described
EMI circuit positive input terminal, the other end of the 4th capacitor, one end of the 7th resistance and described third electricity
One end of sense connects and its connecting pin is the negative input end of the EMI, the other end of second inductance, the described the 6th
The other end of resistance is connected with one end of the 5th capacitor and its connecting pin is the positive output end of the EMI circuit, institute
The other end for the 5th capacitor stated, the 7th resistance the other end connected with the other end of the third inductance and its connect
Connect the negative output terminal that end is the EMI circuit.
7. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that institute
The high-frequency rectification circuit stated includes the tenth diode, the 11st diode, the 12nd diode and the 13rd diode, described
Tenth diode, the 11st diode, the 12nd diode and the 13rd diode are high frequency
The anode of rectifier diode, the tenth diode is connected with the cathode of the 11st diode and its connecting pin is institute
The firewire input terminal for the high-frequency rectification circuit stated, the anode of the 12nd diode and bearing for the 13rd diode
Pole connection and its connecting pin are the zero curve input terminal of the high-frequency rectification circuit, the cathode of the tenth diode and described
The 12nd diode cathode connection and its connecting pin be the high-frequency rectification circuit output end, the described the 11st
The anode of pole pipe and anode connection and its connecting pin the connecing for the high-frequency rectification diode of the 13rd diode
Ground terminal.
8. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that institute
The filter circuit stated includes the 6th capacitor and the 8th resistance, and the 6th capacitor is electrolytic capacitor, the 6th capacitor
Positive one end with the 8th resistance connects and its connecting pin is the anode of the filter circuit, the 6th capacitor
Cathode connected with the other end of the 8th resistance and its connecting pin be the filter circuit cathode.
9. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that institute
The filament match circuit stated includes the 4th inductance, and the both ends of the 4th inductance are respectively the of the filament match circuit
Single port and second port.
10. the LED daylight lamp circuit of a kind of compatible alternating current and electric ballast according to claim 1, it is characterised in that
The LED illuminating circuit includes at least one LED luminescence unit, and each LED luminescence unit respectively includes n LED
Lamp bead, n are the integer more than or equal to 2, the anode connection of cathode and the m+1 lamp bead of lamp bead described in m-th, m
=1,2 ..., n-1, the anode of the just extremely described LED luminescence unit of lamp bead described in the 1st, lamp bead described in n-th
Cathode is the cathode of the LED luminescence unit, and the anode of all LED luminescence units connects and its connecting pin is described
The cathode of the anode of LED illuminating circuit, all LED luminescence units connects and its connecting pin is the LED illuminating circuit
Cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822005651.6U CN209472801U (en) | 2018-11-30 | 2018-11-30 | A kind of LED daylight lamp circuit of compatible alternating current and electric ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822005651.6U CN209472801U (en) | 2018-11-30 | 2018-11-30 | A kind of LED daylight lamp circuit of compatible alternating current and electric ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209472801U true CN209472801U (en) | 2019-10-08 |
Family
ID=68088776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822005651.6U Active CN209472801U (en) | 2018-11-30 | 2018-11-30 | A kind of LED daylight lamp circuit of compatible alternating current and electric ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209472801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822303A (en) * | 2019-10-31 | 2020-02-21 | 厦门普为光电科技有限公司 | LED lamp tube compatible with electronic ballast and mains supply |
-
2018
- 2018-11-30 CN CN201822005651.6U patent/CN209472801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822303A (en) * | 2019-10-31 | 2020-02-21 | 厦门普为光电科技有限公司 | LED lamp tube compatible with electronic ballast and mains supply |
| CN110822303B (en) * | 2019-10-31 | 2022-08-30 | 厦门普为光电科技有限公司 | LED lamp tube compatible with electronic ballast and mains supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102014557A (en) | LED dimming power supply | |
| CN106786814B (en) | A kind of leadage circuit | |
| CN209472801U (en) | A kind of LED daylight lamp circuit of compatible alternating current and electric ballast | |
| CN208337937U (en) | LED light tube drive circuit and LED illumination device | |
| CN108322964B (en) | LED driving power circuit | |
| CN107734778A (en) | LED drive power circuit and luminaire | |
| TWI474755B (en) | Driving device for lighting fixture | |
| CN202652594U (en) | Light emitting diode driver possessing protection path | |
| CN109587878A (en) | A kind of A+B class LED daylight lamp circuit of double-width grinding | |
| CN207475930U (en) | LED drive power circuit and luminaire | |
| CN205005320U (en) | Driving circuit of light -emitting diode (LED) fluorescent tube | |
| CN202799327U (en) | AC LED fluorescent tube and drive control device thereof | |
| CN209593816U (en) | Linear voltage-stabilizing circuit and regulated power supply system | |
| CN207573671U (en) | Time delayed turn-off circuit for lamp | |
| CN209402787U (en) | A kind of Novel LED lamp and its signal adapter | |
| CN104703342A (en) | Human body heat-released electric induction lamp circuit | |
| CN208369896U (en) | A kind of anti-lightning LED drive circuit | |
| CN202679708U (en) | LED (light emitting diode) driving circuit | |
| CN207321588U (en) | Led lamp | |
| CN206834978U (en) | A kind of new 360 ° of full-view image power protecting circuits | |
| CN207005797U (en) | LED straight tube lamp systems | |
| CN109309994A (en) | A kind of LED fluorescent lamp tube of compatible alternating current and ballast | |
| CN209627743U (en) | A kind of LED daylight lamp of compatible ballast | |
| CN109246892A (en) | Linear voltage-stabilizing circuit and regulated power supply system | |
| CN105657896B (en) | Exchange dimming LED driver with new start-up circuit and LED illumination System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |