CN211580248U - Bare plate lamp tube power supply capable of bearing high voltage - Google Patents
Bare plate lamp tube power supply capable of bearing high voltage Download PDFInfo
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- CN211580248U CN211580248U CN202020389680.1U CN202020389680U CN211580248U CN 211580248 U CN211580248 U CN 211580248U CN 202020389680 U CN202020389680 U CN 202020389680U CN 211580248 U CN211580248 U CN 211580248U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model provides a bear highly compressed bare board fluorescent tube power, including surge voltage current protection circuit, rectification filter circuit, central control chip, be used for realizing the main supply circuit of voltage transformation, be used for providing operating voltage's chip supply circuit, the load drive circuit of the main supply circuit of electricity for central control chip, the rectification filter circuit is connected to surge voltage current protection circuit electricity, and central control chip, main supply circuit are connected to rectification filter circuit electricity, and main supply circuit, chip supply circuit are connected to central control chip electricity, and chip supply circuit is connected to main supply circuit electricity. The utility model provides a bear highly compressed bare board fluorescent tube power has realized protection, filtering and the stable control to high-pressure input, and the security of guaranteeing the output is controllable.
Description
Technical Field
The utility model relates to the technical field of circuits, especially, relate to a bear highly compressed bare board fluorescent tube power.
Background
At present, LED lamps of various colors are widely applied to traffic signal lamps, household lamps and large-area display screens, and good economic and social effects are generated.
The high-voltage linear LED linear driving lamp is a novel LED driving scheme in the market, and the LED and the driving IC are in high voltage, so that the requirement for high-voltage protection is provided to ensure the normal work of the LED lamp and the use safety of a user.
Therefore, it is desirable to provide a bare board lamp power supply capable of withstanding high voltage to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a bear highly compressed bare board fluorescent tube power, has realized protection, filtering and the stable control to high-pressure input, and the security of guaranteeing the output is controllable.
For solving the technical problem, the utility model discloses a technical scheme provide a bear highly compressed bare board fluorescent tube power, including surge voltage current protection circuit 1, rectification filter circuit 2, central control chip 3, be used for realizing voltage transformation's main supply circuit 4, be used for providing operating voltage's chip supply circuit 5, the electric load drive circuit 6 of main supply circuit 4 for central control chip 3, surge voltage current protection circuit 1 electricity connection rectification filter circuit 2, rectification filter circuit 2 electricity connection central control chip 3, main supply circuit 4, central control chip 3 electricity connection main supply circuit 4, chip supply circuit 5, main supply circuit 4 electricity connection chip supply circuit 5.
In the examples, it is preferred that: the bare board lamp tube power supply bearing high voltage further comprises a demagnetization detection and output overvoltage protection circuit 7, and the demagnetization detection and output overvoltage protection circuit 7 is electrically connected with the central control chip 3 and the main power supply circuit 4.
In the examples, it is preferred that: the central control chip 3 comprises a 8-pin main control chip IC1 with the model number of KP106 SPA;
master control chip IC 1:
a second capacitor C2 is connected in series between the 1 st pin and the ground wire;
the 2 nd pin is connected with a main power supply circuit 4, a demagnetization detection and output overvoltage protection circuit 7 and a ground wire;
the 3 rd pin is connected with a chip power supply circuit 5;
a 4 th pin is connected with a demagnetization detection and output overvoltage protection circuit 7;
the 5 th pin and the 6 th pin are connected with the main power supply circuit 4;
no load of the 7 th pin;
and the 8 th pin is connected with the output end of the rectifying and filtering circuit 2 and the input end of the main power supply circuit 4.
In the examples, it is preferred that: the main power supply circuit 4 comprises a MOS tube Q1 with the model number of CS4N60, a sixth diode D6 and an inductance coil T1A;
the drain electrode, the grid electrode and the source electrode of the MOS tube Q1 are respectively connected with the 8 th pin, the 6 th pin and the 5 th pin of the main control chip IC1, a third resistor R3 is connected between the grid electrode and the source electrode of the MOS tube Q1, a resistor is connected between the 5 th pin and the 2 nd pin of the main control chip IC1, the cathode of the sixth diode D6 is connected with the source electrode of the MOS tube Q1, the anode of the sixth diode D6 is grounded, and the inductance coil T1A is connected between the 2 nd pin of the main control chip IC1 and the load driving circuit 6.
In the examples, it is preferred that: the main power supply circuit 4 further comprises a fifth resistor R5 and a fourth resistor R4, and the fifth resistor R5 and the fourth resistor R4 are connected in parallel and then connected between the 5 th pin and the 2 nd pin of the main control chip IC 1.
In the examples, it is preferred that:
the demagnetization detection and output overvoltage protection circuit 7 comprises an eighth resistor R8, a ninth resistor R9 and a sixth electrolytic capacitor C6;
the eighth resistor R8 is connected between the 4 th pin of the main control chip IC1 and the anode of the sixth electrolytic capacitor C6, the cathode of the sixth electrolytic capacitor C6 is grounded, one end of the ninth resistor R9 is connected with the 4 th pin of the main control chip IC1, the other end of the ninth resistor R9 is grounded, and the other end of the ninth resistor R9 is connected with the 2 nd pin of the main control chip IC 1.
In the examples, it is preferred that: the chip power supply circuit 5 comprises a third capacitor C3, a sixth resistor R6 and a seventh diode D7, wherein the inductance coil T1A is used for connecting one end of the load driving circuit with the anode of the seventh diode D7, the cathode of the seventh diode D7 is connected with one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected with one end of the third capacitor C3 and the 3 rd pin of the main control chip IC1, and the other end of the third capacitor C3 is grounded.
In the examples, it is preferred that: the load driving circuit comprises a tenth resistor R10 and an LED lamp positive terminal LED +, one end of the tenth resistor R10 and the LED lamp positive terminal LED + are connected with the anode of the seventh diode D7, and the other end of the tenth resistor R10 is grounded.
In the examples, it is preferred that: the surge voltage and current protection circuit 1 comprises two carbon film resistors RF1 and a variable resistor VR;
the rectifying and filtering circuit 2 comprises a rectifying diode bridge S2M and a first capacitor C1;
one end of the variable resistor VR is connected with one end of a carbon film resistor RF1 and the 2 nd pin of the rectifier diode bridge S2M, the other end of the variable resistor VR is connected with one end of another carbon film resistor RF1 and the 4 th pin of the rectifier diode bridge S2M, the other end of one carbon film resistor RF1 is connected with a zero line connecting terminal N, and the other end of the other carbon film resistor RF1 is connected with a live line connecting terminal L;
the 1 st pin of the rectifier diode bridge S2M is connected with one end of the first capacitor C1 and the 8 th pin of the main control chip IC1, and the other end of the first capacitor C1 and the 3 rd pin of the rectifier diode bridge S2M are grounded.
In the examples, it is preferred that:
the model of the sixth diode D6 is ES2J, and the model of the seventh diode D7 is E1J.
The utility model has the advantages that: the utility model provides a pair of bear highly compressed bare board fluorescent tube power has realized protection, filtering and the stable control to high-pressure input, and the security of guaranteeing the output is controllable.
Drawings
Fig. 1 is a schematic circuit diagram of a bare board lamp tube power supply of the present invention, which is subjected to high voltage;
fig. 2 is a schematic circuit diagram of a bare board lamp tube power supply of the present invention, which is capable of bearing high voltage.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the drawings.
Referring to fig. 1, the bare-plate lamp tube power supply capable of bearing high voltage according to the present embodiment includes an anti-surge voltage and current protection circuit 1, a rectification filter circuit 2, a central control chip 3, a main power supply circuit 4 for implementing voltage conversion, a chip power supply circuit 5 for providing working voltage for the central control chip 3, and a load driving circuit 6 electrically connected to the main power supply circuit 4, where the anti-surge voltage and current protection circuit 1 is electrically connected to the rectification filter circuit 2, the rectification filter circuit 2 is electrically connected to the central control chip 3 and the main power supply circuit 4, the central control chip 3 is electrically connected to the main power supply circuit 4 and the chip power supply circuit 5, and the main power supply circuit 4 is electrically connected to the chip power supply circuit 5. In the bare board lamp tube power supply bearing high voltage in the embodiment, the circuit structure for protecting the post-stage circuit and inhibiting lightning surge voltage and current is arranged on the circuit at the commercial power input end, so that the purpose of high-voltage and high-current protection is achieved from the source; furthermore, the rectification filtering part ensures stable and reliable power supply of a post-stage circuit.
Further, referring to fig. 1, in order to eliminate the ripple current in the main power supply circuit 4, the purpose of ensuring the output peak current is small is achieved. In an embodiment, the bare board lamp tube power supply capable of bearing high voltage further includes a demagnetization detection and output overvoltage protection circuit 7, and the demagnetization detection and output overvoltage protection circuit 7 is electrically connected to the central control chip 3 and the main power supply circuit 4.
As for the connection relationship between each pin of the central control chip 3 and other circuit parts, as shown in fig. 1, the central control chip 3 includes an 8-pin main control chip IC1 with a model number KP106 SPA;
master control chip IC 1:
a second capacitor C2 is connected in series between the 1 st pin and the ground wire, the 1 st pin of the main control chip IC1 is connected with a constant current output loop compensation circuit, and the compensation circuit consists of a second capacitor C2 and an internal circuit of the main control chip IC 1;
the 2 nd pin is connected with a main power supply circuit 4, a demagnetization detection and output overvoltage protection circuit 7 and a ground wire;
the 3 rd pin is connected with a chip power supply circuit 5;
a 4 th pin is connected with a demagnetization detection and output overvoltage protection circuit 7;
the 5 th pin and the 6 th pin are connected with the main power supply circuit 4;
no load of the 7 th pin;
the 8 th pin is connected with the output end of the rectifying and filtering circuit 2 and the input end of the main power supply circuit 4, wherein the 8 th pin of the main control chip IC1 is used as a high-voltage starting circuit of the chip;
therefore, the main power supply circuit 4, the chip power supply circuit 5, and the load driving circuit 6 are all controlled by the main control chip IC 1.
As for the specific structure of the main power supply circuit 4, as shown in fig. 2, the main power supply circuit 4 includes a MOS transistor Q1 of type CS4N60, a sixth diode D6, and an inductor T1A;
the drain electrode, the grid electrode and the source electrode of the MOS tube Q1 are respectively connected with the 8 th pin, the 6 th pin and the 5 th pin of the main control chip IC1, a third resistor R3 is connected between the grid electrode and the source electrode of the MOS tube Q1, a resistor is connected between the 5 th pin and the 2 nd pin of the main control chip IC1, the cathode of the sixth diode D6 is connected with the source electrode of the MOS tube Q1, the anode of the sixth diode D6 is grounded, and the inductance coil T1A is connected between the 2 nd pin of the main control chip IC1 and the load driving circuit 6. Furthermore, as shown in fig. 2, the main power supply circuit 4 further includes a fifth resistor R5 and a fourth resistor R4, and the fifth resistor R5 and the fourth resistor R4 are connected in parallel and then connected between the 5 th pin and the 2 nd pin of the main control chip IC 1. The MOS transistor Q1 is a high-frequency switch and can transmit energy to the inductor T1A.
In order to absorb ripple current and improve the stability of power supply to the LED lamp, and prevent the LED lamp from stroboscopic serious problem, as shown in fig. 2, the degaussing detection and output overvoltage protection circuit 7 includes an eighth resistor R8, a ninth resistor R9, and a sixth electrolytic capacitor C6;
the eighth resistor R8 is connected between the 4 th pin of the main control chip IC1 and the anode of the sixth electrolytic capacitor C6, the cathode of the sixth electrolytic capacitor C6 is grounded, one end of the ninth resistor R9 is connected with the 4 th pin of the main control chip IC1, the other end of the ninth resistor R9 is grounded, and the other end of the ninth resistor R9 is connected with the 2 nd pin of the main control chip IC 1; the pin 2 of the main control chip IC1 is the current detection end of the inductor coil T1A, and the sixth electrolytic capacitor C6 is used as a core component for absorbing ripple current, so that the ripple current output to the LED lamp is not large.
As for the structure of the chip power supply circuit 5, as shown in fig. 2, the chip power supply circuit includes a third capacitor C3, a sixth resistor R6, and a seventh diode D7, one end of the inductor T1A for connecting to the load driving circuit is connected to the anode of the seventh diode D7, the cathode of the seventh diode D7 is connected to one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to one end of the third capacitor C3 and the 3 rd pin of the main control chip IC1, and the other end of the third capacitor C3 is grounded.
As shown in fig. 2, the load driving circuit includes a tenth resistor R10 and an LED lamp positive terminal LED +, one end of the tenth resistor R10 and the LED lamp positive terminal LED + are connected to the anode of the seventh diode D7, and the other end of the tenth resistor R10 is grounded; the tenth resistor R10 is a discharge resistor.
As shown in fig. 2, the surge protection circuit 1 includes two carbon film resistors RF1 and a variable resistor VR;
the rectifying and filtering circuit 2 comprises a rectifying diode bridge S2M and a first capacitor C1;
one end of the variable resistor VR is connected with one end of a carbon film resistor RF1 and the 2 nd pin of the rectifier diode bridge S2M, the other end of the variable resistor VR is connected with one end of another carbon film resistor RF1 and the 4 th pin of the rectifier diode bridge S2M, the other end of one carbon film resistor RF1 is connected with a zero line connecting terminal N, and the other end of the other carbon film resistor RF1 is connected with a live line connecting terminal L;
the 1 st pin of the rectifier diode bridge S2M is connected with one end of the first capacitor C1 and the 8 th pin of the main control chip IC1, and the other end of the first capacitor C1 and the 3 rd pin of the rectifier diode bridge S2M are grounded.
In an embodiment of the present invention, the model of the sixth diode D6 is ES2J, and the model of the seventh diode D7 is E1J.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same principle as the protection scope of the present invention.
Claims (10)
1. The utility model provides a bear highly compressed bare board fluorescent tube power, its characterized in that, including anti-surge voltage current protection circuit (1), rectification filter circuit (2), central control chip (3), be used for realizing main supply circuit (4) of voltage transformation, be used for providing chip supply circuit (5) of operating voltage for central control chip (3), load drive circuit (6) of electric connection main supply circuit (4), anti-surge voltage current protection circuit (1) electricity is connected rectification filter circuit (2), and central control chip (3), main supply circuit (4) are connected to rectification filter circuit (2) electricity, and main supply circuit (4) are connected to central control chip (3) electricity, and main supply circuit (4) electricity is connected to chip supply circuit (5).
2. The bare board lamp power supply capable of withstanding high voltages of claim 1, wherein: the bare board lamp tube power supply bearing high voltage further comprises a demagnetization detection and output overvoltage protection circuit (7), and the demagnetization detection and output overvoltage protection circuit (7) is electrically connected with the central control chip (3) and the main power supply circuit (4).
3. The bare board lamp power supply of claim 2, wherein: the central control chip (3) comprises an 8-pin main control chip (IC1) with the model number of KP106 SPA;
master control chip (IC 1):
a second capacitor (C2) is connected in series between the 1 st pin and the ground wire;
the 2 nd pin is connected with a main power supply circuit (4), a demagnetization detection and output overvoltage protection circuit (7) and a ground wire;
a 3 rd pin is connected with a chip power supply circuit (5);
a 4 th pin connection demagnetization detection and output overvoltage protection circuit (7);
the 5 th pin and the 6 th pin are connected with a main power supply circuit (4);
no load of the 7 th pin;
and the 8 th pin is connected with the output end of the rectifying and filtering circuit (2) and the input end of the main power supply circuit (4).
4. The bare board lamp power supply of claim 3, wherein: the main power supply circuit (4) comprises a MOS (metal oxide semiconductor) tube (Q1) with the model number of CS4N60, a sixth diode (D6) and an inductance coil (T1A);
the drain electrode, the grid electrode and the source electrode of the MOS tube (Q1) are respectively connected with the 8 th pin, the 6 th pin and the 5 th pin of the main control chip (IC1), a third resistor (R3) is connected between the grid electrode and the source electrode of the MOS tube (Q1), a resistor is connected between the 5 th pin and the 2 nd pin of the main control chip (IC1), the cathode of the sixth diode (D6) is connected with the source electrode and the anode of the MOS tube (Q1) and is grounded, and the inductance coil (T1A) is connected between the 2 nd pin of the main control chip (IC1) and the load driving circuit (6).
5. The bare board lamp power supply according to claim 4, wherein: the main power supply circuit (4) further comprises a fifth resistor (R5) and a fourth resistor (R4), and the fifth resistor (R5) and the fourth resistor (R4) are connected in parallel and then connected between a pin 5 and a pin 2 of the main control chip (IC 1).
6. The bare board lamp power supply capable of withstanding high voltages of claim 4 or 5, wherein:
the demagnetization detection and output overvoltage protection circuit (7) comprises an eighth resistor (R8), a ninth resistor (R9) and a sixth electrolytic capacitor (C6);
the eighth resistor (R8) is connected between the 4 th pin of the main control chip (IC1) and the anode of the sixth electrolytic capacitor (C6), the cathode of the sixth electrolytic capacitor (C6) is grounded, one end of the ninth resistor (R9) is connected with the 4 th pin of the main control chip (IC1), the other end of the ninth resistor (R9) is grounded, and the other end of the ninth resistor (R9) is connected with the 2 nd pin of the main control chip (IC 1).
7. The bare board lamp power supply of claim 6, wherein: the chip power supply circuit (5) comprises a third capacitor (C3), a sixth resistor (R6) and a seventh diode (D7), wherein the inductance coil (T1A) is used for being connected with one end of the load driving circuit and connected with the anode of the seventh diode (D7), the cathode of the seventh diode (D7) is connected with one end of the sixth resistor (R6), the other end of the sixth resistor (R6) is connected with one end of the third capacitor (C3) and the 3 rd pin of the main control chip (IC1), and the other end of the third capacitor (C3) is grounded.
8. The bare board lamp power supply of claim 7, wherein: the load driving circuit comprises a tenth resistor (R10) and an LED lamp positive terminal (LED +), one end of the tenth resistor (R10) and the LED lamp positive terminal (LED +) are connected with the anode of the seventh diode (D7), and the other end of the tenth resistor (R10) is grounded.
9. The bare board lamp power supply of claim 8, wherein: the surge voltage and current protection circuit (1) comprises two carbon film resistors RF1 and a variable resistor VR;
the rectifying and filtering circuit (2) comprises a rectifying diode bridge (S2M) and a first capacitor (C1);
one end of the Variable Resistor (VR) is connected with one end of one carbon film resistor (RF1) and the 2 nd pin of the rectifier diode bridge (S2M), the other end of the Variable Resistor (VR) is connected with one end of the other carbon film resistor (RF1) and the 4 th pin of the rectifier diode bridge (S2M), the other end of one carbon film resistor (RF1) is connected with a zero line connecting terminal (N), and the other end of the other carbon film resistor (RF1) is connected with a live line connecting terminal (L);
the 1 st pin of the rectifier diode bridge (S2M) is connected with one end of the first capacitor (C1) and the 8 th pin of the main control chip (IC1), and the other end of the first capacitor (C1) and the 3 rd pin of the rectifier diode bridge (S2M) are grounded.
10. The bare board lamp power supply of claim 6, wherein:
the model of the sixth diode (D6) is ES2J, and the model of the seventh diode (D7) is E1J.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020389680.1U CN211580248U (en) | 2020-03-24 | 2020-03-24 | Bare plate lamp tube power supply capable of bearing high voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020389680.1U CN211580248U (en) | 2020-03-24 | 2020-03-24 | Bare plate lamp tube power supply capable of bearing high voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211580248U true CN211580248U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020389680.1U Active CN211580248U (en) | 2020-03-24 | 2020-03-24 | Bare plate lamp tube power supply capable of bearing high voltage |
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|---|---|
| CN (1) | CN211580248U (en) |
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2020
- 2020-03-24 CN CN202020389680.1U patent/CN211580248U/en active Active
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