CN221886753U - An energy-saving voltage-stabilizing and dimming electronic ballast - Google Patents

Abstract

The utility model discloses an energy-saving voltage-stabilizing dimming type electronic ballast, which is characterized in that: the circuit comprises a chip U1, a plurality of capacitance capacitors, a transformer L1, a rectifier bridge, an inductor L2, a plurality of resistors, a voltage stabilizing diode Z1, a voltage stabilizing diode Z2, a voltage stabilizing diode Z3, a triode V1, a triode V2 and a triode V3; the utility model adopts advanced active power factor correction technology and electronic filtering measures, and reduces the line current, thereby reducing the load and loss of the whole power supply line.

Description

An energy-saving voltage-stabilizing and dimming electronic ballast

Technical Field

The utility model relates to the technical field of electronic ballasts, in particular to an energy-saving voltage-stabilizing and light-adjusting electronic ballast.

Background Art

The industrial frequency in my country is 50Hz. Under the industrial frequency, the output energy waveform of the lamp under the traditional transformer control method shows that the energy output by the UV lamp (ultraviolet lamp) under the traditional control method fluctuates between zero and the maximum value at a frequency of 50Hz. However, the frequency is low and there is a certain flicker phenomenon, and it is easy to affect the stability of power output with the fluctuation of grid voltage.

Electronic ballasts typically include a rectifier for converting the voltage of alternating current (AC) into the voltage of direct current (DC), and a filter circuit for filtering the DC voltage. The filter circuit usually contains an energy storage capacitor. Electronic ballasts also often use a boost circuit to enhance the magnitude of the DC voltage. In addition, the ballast uses a power factor compensation method to reduce the total harmonic distortion of the ballast current input. These circuits usually include a switching inverter to convert the DC voltage into a high-frequency AC voltage, and include a resonant circuit having a relatively high impedance for coupling the high-frequency AC voltage to the electrodes of the discharge lamp.

In addition, most of the ballasts on the market currently use simple 2-phase or 3-phase 380V direct rectification as the bus voltage, with low power factor and voltage. The output circuit generally uses a single-channel resonance method, and then adds a transformer to boost the voltage at the ballast output stage. Since the bus voltage of this circuit structure is only 538V and fluctuates with the grid voltage, and the output is transmitted by a resonant circuit, the current of the resonant circuit is relatively large, and generally only a large current IGBT module can be used to drive it. IGBT modules are relatively expensive, and the switching frequency of IGBT is generally low, so it is difficult to make the transformer of the output stage small. And because the switching frequency of IGBT mostly works at 10KHZ-20KHZ (the frequency range that human ears can hear), the output transformer will be accompanied by high-frequency noise. It is difficult to make a transformer to eliminate this noise, especially when the power is high, this problem is more prominent.

Therefore, it is necessary to provide an energy-saving voltage-stabilizing dimming electronic ballast to overcome the above-mentioned defects.

Utility Model Content

The technical problem to be solved by the utility model is to provide an energy-saving voltage-stabilizing and dimming electronic ballast in view of the deficiencies of the background technology.

The utility model adopts the following technical solutions to solve the above technical problems:

An energy-saving voltage-stabilizing dimming electronic ballast, comprising a chip U1, an AC220-240V L terminal, an AC220-240V N terminal, capacitor C0, transformer L1, capacitor C1, capacitor C2, rectifier bridge, capacitor C3, inductor L2, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C20, capacitor C11, capacitor C12, capacitor C13, capacitor C16, resistor R0, resistor R1, resistor R2, resistor R3, resistor R4, resistor R45, resistor R58, resistor R75, resistor R74, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R17, resistor R18, resistor R19, resistor R20, resistor R21, resistor R22, resistor R43, Zener diode Z1, Zener diode Z2, Zener diode Z3, transistor V1, transistor V2, transistor V3.

The AC220-240V L terminal is connected to one end of the capacitor C0 and the interface 3 of the transformer L1, and the AC220-240V N terminal is connected to one end of the capacitor C0 and the interface 3 of the transformer L1.

The ends are respectively connected to the other end of capacitor C0 and interface 1 of transformer L1, interface 4 of transformer L1 is respectively connected to one end of capacitor C2, one end of capacitor C2 and interface 1 of rectifier bridge, interface 2 of transformer L1 is respectively connected to the other end of capacitor C1, one end of capacitor C3 and interface 3 of rectifier bridge, the other end of capacitor C3 is connected to the other end of capacitor C2 and grounded, interface 2 of rectifier bridge is connected to one end of inductor L2, the other end of inductor L2 is respectively connected to one end of resistor R0, one end of resistor R3, one end of capacitor C4, one end of resistor R58, one end of resistor R74, one end of resistor R18, one end of capacitor C9, interface 1 of transformer T1, the other end of resistor R0 is connected to one end of resistor R1, the other end of resistor R1 is respectively connected to one end of resistor R2 and the cathode of Zener diode Z1 and one end of capacitor C5, the other end of capacitor C5 Respectively connect interface 4 of the rectifier tube, the other end of resistor R2, one end of capacitor C6, one end of resistor R45, the emitter of transistor V1, one end of resistor R10, one end of capacitor C20, the emitter of transistor V2, pin 6 of chip U1, one end of resistor R15, one end of capacitor C11, the anode of Zener diode Z2, the positive electrode of diode D2, and one end of capacitor C12; the other end of resistor R3 is connected to one end of resistor R4, the other end of resistor R4 is respectively connected to the collector of transistor V1 and the base of transistor V2; the base of transistor V1 is respectively connected to the other end of resistor R45, the other end of capacitor C6 and the anode of Zener diode; the other end of resistor R10 is respectively connected to one end of resistor R8 and the anode of Zener diode Z2; the other end of resistor R8 is respectively connected to one end of resistor R9, one end of capacitor C8, and resistor R1 2 and pin 1 of chip U1, pin 2 of chip U1 is connected to the other end of capacitor C8 and the other end of resistor R9 respectively, pin 3 of chip U1 is connected to one end of resistor R7, one end of capacitor C7 and one end of resistor R75 respectively, the other end of resistor R75 is connected to the other end of resistor R58, the other end of C7 is connected to the other end of resistor R7, pin 4 of chip U1 is connected to the other end of resistor R15, pin 5 of chip U1 is connected to the collector of transistor V2 and one end of resistor R13 respectively, the other end of resistor R13 is connected to the positive electrode of diode D2, pin 7 of chip U1 is connected to one end of resistor R14, the other end of resistor R14 is connected to the other end of resistor R15, the other end of resistor R12 is connected to one end of resistor R11, pin 8 of chip U1, one end of resistor R17 and the other end of capacitor C11 respectively, and the other end of resistor R The other end of resistor R11 is connected to the other end of resistor R74, the other end of resistor R18 is respectively connected to the other end of capacitor C9 and the cathode of diode D1, the anode of diode D1 is connected to port 2 of transformer T1, port 3 of transformer T1 is respectively connected to one end of capacitor C13 and the other end of capacitor C12, the anode of voltage zener diode Z3, one end of resistor R22, one end of capacitor C16, and one end of resistor R43, the cathode of diode D3 is respectively connected to the other end of capacitor C13, one end of resistor R19, one end of resistor R21 and the other end of resistor R43, the other end of resistor R19 is respectively connected to one end of resistor R20 and the anode of light emitting diode, the cathode of light emitting diode is respectively connected to the other end of resistor R20 and the cathode of voltage zener diode, and the other end of resistor R21 is respectively connected to the other end of resistor R22 and the other end of capacitor C16.

As a further preferred embodiment of the energy-saving voltage-stabilizing dimming electronic ballast of the utility model, it also includes a resistor R41, a resistor R42, and a light-emitting diode. The VCC voltage end is connected to one end of the resistor R41, the other end of the resistor R41 is connected to one end of the resistor R42 through a diode, and the other end of the resistor R42 is grounded.

As a further preferred solution of the energy-saving voltage-stabilizing dimming electronic ballast of the utility model, the chip model of the chip U1 is L6562D.

As a further preferred solution of the energy-saving voltage-stabilizing dimming electronic ballast of the utility model, the resistance value of the resistor R1 is 180K.

As a further preferred solution of the energy-saving voltage-stabilizing and dimming electronic ballast of the utility model, the value of the inductor L2 is 1 mH.

Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

1. This utility model adopts advanced active power factor correction technology and electronic filtering measures, which can make the system power factor greater than 99%, with almost no impact on the power grid. At the same lighting power, the line current is reduced exponentially, thereby reducing the load and loss of the entire power supply line;

2. The utility model adopts high-frequency constant power technology to ignite the bulb, eliminating the stroboscopic phenomenon and noise of the power frequency power supply, is suitable for all occasions where the inductive ballast is used, overcomes the world's difficult problem of audio frequency resonance, and enables the lamp to obtain the maximum lighting effect under the condition of lower energy consumption;

3. The utility model has a good voltage stabilizing function and can keep the output power and the brightness of the bulb basically constant within the voltage range of 160V to 260V and the frequency range of 40 to 400Hz.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

FIG. 1 is a circuit diagram of the utility model.

DETAILED DESCRIPTION

The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings:

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

An energy-saving voltage-stabilizing dimming electronic ballast, as shown in FIG1, includes a chip U1, an AC220-240V L end, AC220-240VN end, capacitor C0, transformer L1, capacitor C1, capacitor C2, rectifier bridge, capacitor C3, inductor L2, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C20, capacitor C11, capacitor C12, capacitor C13, capacitor C16, resistor R0, resistor R1, resistor R2, resistor R3, resistor R4, resistor R45, resistor R58, resistor R75, resistor R74, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R17, resistor R18, resistor R19, resistor R20, resistor R21, resistor R22, resistor R43, Zener diode Z1, Zener diode Z2, Zener diode Z3, transistor V1, transistor V2, transistor V3.

The AC220-240V L terminal is connected to one end of the capacitor C0 and the interface 3 of the transformer L1, and the AC220-240V N terminal is connected to one end of the capacitor C0 and the interface 3 of the transformer L1.

The ends are respectively connected to the other end of capacitor C0 and interface 1 of transformer L1, interface 4 of transformer L1 is respectively connected to one end of capacitor C2, one end of capacitor C2 and interface 1 of rectifier bridge, interface 2 of transformer L1 is respectively connected to the other end of capacitor C1, one end of capacitor C3 and interface 3 of rectifier bridge, the other end of capacitor C3 is connected to the other end of capacitor C2 and grounded, interface 2 of rectifier bridge is connected to one end of inductor L2, the other end of inductor L2 is respectively connected to one end of resistor R0, one end of resistor R3, one end of capacitor C4, one end of resistor R58, one end of resistor R74, one end of resistor R18, one end of capacitor C9, interface 1 of transformer T1, the other end of resistor R0 is connected to one end of resistor R1, the other end of resistor R1 is respectively connected to one end of resistor R2 and the cathode of Zener diode Z1 and one end of capacitor C5, the other end of capacitor C5 Respectively connect interface 4 of the rectifier tube, the other end of resistor R2, one end of capacitor C6, one end of resistor R45, the emitter of transistor V1, one end of resistor R10, one end of capacitor C20, the emitter of transistor V2, pin 6 of chip U1, one end of resistor R15, one end of capacitor C11, the anode of Zener diode Z2, the positive electrode of diode D2, and one end of capacitor C12; the other end of resistor R3 is connected to one end of resistor R4, the other end of resistor R4 is respectively connected to the collector of transistor V1 and the base of transistor V2; the base of transistor V1 is respectively connected to the other end of resistor R45, the other end of capacitor C6 and the anode of Zener diode; the other end of resistor R10 is respectively connected to one end of resistor R8 and the anode of Zener diode Z2; the other end of resistor R8 is respectively connected to one end of resistor R9, one end of capacitor C8, and resistor R1 2 and pin 1 of chip U1, pin 2 of chip U1 is connected to the other end of capacitor C8 and the other end of resistor R9 respectively, pin 3 of chip U1 is connected to one end of resistor R7, one end of capacitor C7 and one end of resistor R75 respectively, the other end of resistor R75 is connected to the other end of resistor R58, the other end of C7 is connected to the other end of resistor R7, pin 4 of chip U1 is connected to the other end of resistor R15, pin 5 of chip U1 is connected to the collector of transistor V2 and one end of resistor R13 respectively, the other end of resistor R13 is connected to the positive electrode of diode D2, pin 7 of chip U1 is connected to one end of resistor R14, the other end of resistor R14 is connected to the other end of resistor R15, the other end of resistor R12 is connected to one end of resistor R11, pin 8 of chip U1, one end of resistor R17 and the other end of capacitor C11 respectively, and the other end of resistor R The other end of resistor R11 is connected to the other end of resistor R74, the other end of resistor R18 is respectively connected to the other end of capacitor C9 and the cathode of diode D1, the anode of diode D1 is connected to port 2 of transformer T1, port 3 of transformer T1 is respectively connected to one end of capacitor C13 and the other end of capacitor C12, the anode of voltage zener diode Z3, one end of resistor R22, one end of capacitor C16, and one end of resistor R43, the cathode of diode D3 is respectively connected to the other end of capacitor C13, one end of resistor R19, one end of resistor R21 and the other end of resistor R43, the other end of resistor R19 is respectively connected to one end of resistor R20 and the anode of light emitting diode, the cathode of light emitting diode is respectively connected to the other end of resistor R20 and the cathode of voltage zener diode, and the other end of resistor R21 is respectively connected to the other end of resistor R22 and the other end of capacitor C16.

It also includes a resistor R41, a resistor R42, and a light emitting diode. The VCC voltage end is connected to one end of the resistor R41, the other end of the resistor R41 is connected to one end of the resistor R42 through a diode, and the other end of the resistor R42 is grounded.

The chip model of the chip U1 is L6562D.

The resistance of the resistor R1 is 180K.

The value of the inductor L2 is 1 mH.

The utility model adopts advanced active power factor correction technology and electronic filtering measures, which can make the system power factor greater than 99%, with almost no impact on the power grid. At the same lighting power, the line current is reduced exponentially, thereby reducing the load and loss of the entire power supply line; the utility model uses high-frequency constant power technology to ignite the bulb, eliminating the stroboscopic phenomenon and noise of the power supply, suitable for all occasions where inductive ballasts are used, overcoming the world's difficult problem of audio resonance, so that the lamp tube can obtain the maximum lighting effect under the condition of low energy consumption; the utility model has a good voltage stabilization function, and can basically keep the output power and bulb brightness constant within the voltage range of 160V to 260V and the frequency range of 40 to 400Hz.

All technical features in this embodiment can be freely combined according to actual needs.

Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. An energy-saving voltage-stabilizing dimming electronic ballast, characterized by: comprising a chip U1, an AC220-240V L terminal, an AC220-240V N terminal, capacitor C0, transformer L1, capacitor C1, capacitor C2, rectifier bridge, capacitor C3, inductor L2, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C20, capacitor C11, capacitor C12, capacitor C13, capacitor C16, resistor R0, resistor R1, resistor R2, resistor R3, resistor R4, resistor R45, resistor R58, resistor R75, resistor R74, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R17, resistor R18, resistor R19, resistor R20, resistor R21, resistor R22, resistor R43, Zener diode Z1, Zener diode Z2, Zener diode Z3, transistor V1, transistor V2, transistor V3; Among them, the AC220-240V L end is respectively connected to one end of the capacitor C0 and the interface 3 of the transformer L1, the AC220-240V N end is respectively connected to the other end of the capacitor C0 and the interface 1 of the transformer L1, the interface 4 of the transformer L1 is respectively connected to one end of the capacitor C2, one end of the capacitor C2 and the interface 1 of the rectifier bridge, the interface 2 of the transformer L1 is respectively connected to the other end of the capacitor C1, one end of the capacitor C3 and the interface 3 of the rectifier bridge, the other end of the capacitor C3 is connected to the other end of the capacitor C2 and is grounded, the interface 2 of the rectifier bridge is connected to one end of the inductor L2, the other end of the inductor L2 is respectively connected to one end of the resistor R0, one end of the resistor R3, one end of the capacitor C4, one end of the resistor R58, one end of the resistor R74, one end of the resistor R18, one end of the capacitor C9, and the interface 1 of the transformer T1, the other end of the resistor R0 is connected to one end of the resistor R1, the other end of the resistor R1 is respectively connected to one end of the resistor R2 and the cathode of the Zener diode Z1 and one end of the capacitor C5, the other end of the capacitor C5 Respectively connect interface 4 of the rectifier tube, the other end of resistor R2, one end of capacitor C6, one end of resistor R45, the emitter of transistor V1, one end of resistor R10, one end of capacitor C20, the emitter of transistor V2, pin 6 of chip U1, one end of resistor R15, one end of capacitor C11, the anode of Zener diode Z2, the positive electrode of diode D2, and one end of capacitor C12; the other end of resistor R3 is connected to one end of resistor R4, the other end of resistor R4 is respectively connected to the collector of transistor V1 and the base of transistor V2; the base of transistor V1 is respectively connected to the other end of resistor R45, the other end of capacitor C6 and the anode of Zener diode; the other end of resistor R10 is respectively connected to one end of resistor R8 and the anode of Zener diode Z2; the other end of resistor R8 is respectively connected to one end of resistor R9, one end of capacitor C8, and resistor R1 2 and pin 1 of chip U1, pin 2 of chip U1 is connected to the other end of capacitor C8 and the other end of resistor R9 respectively, pin 3 of chip U1 is connected to one end of resistor R7, one end of capacitor C7 and one end of resistor R75 respectively, the other end of resistor R75 is connected to the other end of resistor R58, the other end of C7 is connected to the other end of resistor R7, pin 4 of chip U1 is connected to the other end of resistor R15, pin 5 of chip U1 is connected to the collector of transistor V2 and one end of resistor R13 respectively, the other end of resistor R13 is connected to the positive electrode of diode D2, pin 7 of chip U1 is connected to one end of resistor R14, the other end of resistor R14 is connected to the other end of resistor R15, the other end of resistor R12 is connected to one end of resistor R11, pin 8 of chip U1, one end of resistor R17 and the other end of capacitor C11 respectively, and the other end of resistor R The other end of resistor R11 is connected to the other end of resistor R74, the other end of resistor R18 is respectively connected to the other end of capacitor C9 and the cathode of diode D1, the anode of diode D1 is connected to port 2 of transformer T1, port 3 of transformer T1 is respectively connected to one end of capacitor C13 and the other end of capacitor C12, the anode of voltage zener diode Z3, one end of resistor R22, one end of capacitor C16, and one end of resistor R43, the cathode of diode D3 is respectively connected to the other end of capacitor C13, one end of resistor R19, one end of resistor R21 and the other end of resistor R43, the other end of resistor R19 is respectively connected to one end of resistor R20 and the anode of light emitting diode, the cathode of light emitting diode is respectively connected to the other end of resistor R20 and the cathode of voltage zener diode, and the other end of resistor R21 is respectively connected to the other end of resistor R22 and the other end of capacitor C16. 2. An energy-saving voltage-stabilizing dimming electronic ballast according to claim 1, characterized in that it also includes a resistor R41, a resistor R42, and a light-emitting diode, the VCC voltage end is connected to one end of the resistor R41, the other end of the resistor R41 is connected to one end of the resistor R42 through the diode, and the other end of the resistor R42 is grounded. 3. The energy-saving voltage-stabilizing dimming electronic ballast according to claim 1, characterized in that the chip model of the chip U1 is L6562D. 4. The energy-saving voltage-stabilizing dimming electronic ballast according to claim 1, characterized in that the resistance of the resistor R1 is 180K. 5. The energy-saving voltage-stabilizing dimming electronic ballast according to claim 1, characterized in that the value of the inductor L2 is 1 mH.