CN213152438U - Light touch type on-line dimmer circuit - Google Patents
Light touch type on-line dimmer circuit Download PDFInfo
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- CN213152438U CN213152438U CN202022424230.4U CN202022424230U CN213152438U CN 213152438 U CN213152438 U CN 213152438U CN 202022424230 U CN202022424230 U CN 202022424230U CN 213152438 U CN213152438 U CN 213152438U
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Abstract
The utility model discloses a light touch online dimmer circuit, including chip U1, triode Q1, triode Q2 and resistance RV1, electric capacity C4, electric capacity C5, resistance R6, fuse F1, resistance R4 and output L are connected to resistance RV 1's one end, the 220V commercial power is connected to fuse F1's the other end, electric capacity C5's the other end passes through resistance R7 and connects earphone D1's negative pole and diode ZD 1's positive pole, resistance R6's the other end passes through resistance R1 and connects diode D2's negative pole and triode Q1's base. The utility model discloses a dab light modulator circuit on formula line adopts and dabs the switch as control element, and control is very simple, and the electronic component use amount of whole circuit is few, and the cost is practiced thrift to the stable performance.
Description
Technical Field
The utility model relates to a light modulator technical field specifically is a dab formula online light modulator circuit.
Background
A dimmer is an electrical device for changing the luminous flux of a light source in a lighting device, adjusting the level of illumination. A large capacity and constituting a system is called a dimming device. The basic principle is to change the effective value of the current of the input light source to achieve the aim of dimming.
At present, the light modulator is mainly a knob type light modulator in the market and is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dab formula online dimmer circuit to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a dab formula online dimmer circuit, includes chip U, triode Q and resistance RV, electric capacity C, resistance R, fuse F, resistance R and output L are connected to the one end of resistance RV, the 220V commercial power is connected to the other end of fuse F, earphone D ' S negative pole and diode ZD ' S positive pole are connected through resistance R to electric capacity C ' S the other end, diode D ' S negative pole and triode Q ' S base are connected through resistance R to resistance R ' S the other end, triode Q ' S collecting electrode connecting resistance R, electric capacity C and chip U ' S foot 5, switch S is dabbed in triode Q ' S projecting pole connection, resistance R, diode D ' S positive pole, electric capacity C, resistance R and triode Q ' S projecting pole, diode ZD ' S negative pole is connected to electric capacity C ' S the other end, the other end of resistance RV, The other end of the capacitor C3, the other end of the resistor R3, the other ends of the capacitors C6 and 220V alternating current, the other end of the resistor R10 is connected with a resistor R9 and a base of the transistor Q3, the other end of the tact switch S1 is connected with a pin 6 of the chip U1, the other end of the resistor R1 is connected with a pin2 of the chip U1, a collector of the transistor Q1 is connected with the resistor R1, the other point of the resistor R1 is connected with the other end of the capacitor C1 and a control electrode of the triac Q1, a pin 4 of the chip U1 is connected with an anode of the diode D1 and the capacitor C1, a cathode of the diode D1 is connected with the other end of the capacitor C1, one main electrode of the triac Q1, the NTC resistor and a pin1 of the chip U1, the other main electrode of the triac Q1 is connected with an inductor L1, the other end of the inductor L1 is connected with the resistor R1, the other end of the capacitor C1 and the resistor R, the other end of the resistor R11 is connected with the capacitor C10 and the pin3 of the chip U1, and the other end of the capacitor C10 is connected with the resistor R12 and the pin 8 of the chip U1.
As a further technical solution of the present invention: the diode ZD1 is a zener diode.
As a further technical solution of the present invention: the model of the triode Q1 is S8050.
As a further technical solution of the present invention: the type of the bidirectional thyristor Q2 is BT 131.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a dab light modulator circuit on formula line adopts and dabs the switch as control element, and control is very simple, and the electronic component use amount of whole circuit is few, and the cost is practiced thrift to the stable performance.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1: referring to fig. 1, a light touch type online dimmer circuit includes a chip U, a triode Q, and a resistor RV, wherein one end of the resistor RV is connected to a capacitor C, a resistor R, a fuse F, a resistor R, and an output end L, the other end of the fuse F is connected to a 220V commercial power, the other end of the capacitor C is connected to a cathode of an earphone D and an anode of a diode ZD through the resistor R, the other end of the resistor R is connected to a cathode of the diode D and a base of the triode Q through the resistor R, a collector of the triode Q is connected to the resistor R, the capacitor C, and a pin5 of the chip U, an emitter of the triode Q is connected to a light touch switch S, the resistor R, an anode of the diode D, the capacitor C, the resistor R, and an emitter of the triode Q, the other end of the capacitor C3, the other end of the resistor R3, the other ends of the capacitors C6 and 220V alternating current, the other end of the resistor R10 is connected with a resistor R9 and a base of the transistor Q3, the other end of the tact switch S1 is connected with a pin 6 of the chip U1, the other end of the resistor R1 is connected with a pin2 of the chip U1, a collector of the transistor Q1 is connected with the resistor R1, the other point of the resistor R1 is connected with the other end of the capacitor C1 and a control electrode of the triac Q1, a pin 4 of the chip U1 is connected with an anode of the diode D1 and the capacitor C1, a cathode of the diode D1 is connected with the other end of the capacitor C1, one main electrode of the triac Q1, the NTC resistor and a pin1 of the chip U1, the other main electrode of the triac Q1 is connected with an inductor L1, the other end of the inductor L1 is connected with the resistor R1, the other end of the capacitor C1 and the resistor R, the other end of the resistor R11 is connected with the capacitor C10 and the pin3 of the chip U1, and the other end of the capacitor C10 is connected with the resistor R12 and the pin 8 of the chip U1.
RV1 and C4 in the circuit are used for restraining EMC problem, alternating current is subjected to resistance-capacitance current limiting through C5 and R7, then is subjected to M7 half-wave rectification, and ZD1 is subjected to voltage stabilization and is about 3.3V, and is sent to Pin1 of U1 to be used as power supply of U1. The Pin2 output control signal of U1 is applied to the base of Q3 through the base current-limiting resistor R9 of Q3 to control the conduction degree of Q3, thereby changing the RC phase-cutting circuit composed of C3, C6 and R8. The phase of the trigger signal of the bidirectional triode thyristor is controlled by changing the time constant of the RC of the bidirectional triode thyristor, when the conduction degree of Q3 is better, the R value is smaller, the RC time constant is smaller, the phase shift of the trigger signal is smaller, and therefore the load obtains larger electric power; when Q3 is turned on to a lesser degree, corresponding to a greater R value, a greater RC time constant, and a greater phase shift of the trigger signal, the load will therefore draw less electrical power. In order to improve the efficiency, because of the use of the bidirectional triode thyristor, the sine wave of the alternating current must pass through a zero crossing point when the phase is cut, namely, the voltage is zero when 180 degrees is reached. At this time, the lamp is turned off, and a zero-crossing detection circuit is required. The lamp can not be turned off when the dimming zero-crossing is ensured. A zero-crossing detection circuit composed of R6, R1 and Q1 sends a zero-crossing signal back to a Pin5 of the U1, so that the output is controlled by a Pin2 of the U1 through an algorithm of U1, and the zero-crossing of the silicon controlled rectifier is ensured to be still conducted. The R6, R1, R3 partial voltage provides the base bias current of Q1. D2 is a protection diode to ensure that the PN junction of Q1 is not reverse biased. The C7 filters high frequency signals to provide reliable power to the U1, and the resistance value of the NTC changes when the NTC is overheated, so that the Pin3 voltage signals sent by the R11 and R12 to the IC are changed. Thereby controlling pin2 of the IC.
Example 2: on the basis of example 1: diode ZD1 is a zener diode. Transistor Q1 is model S8050. The triac Q2 is model number BT 131. The above-mentioned components are all very versatile components, stable in performance and low in cost.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A light touch type on-line dimmer circuit comprises a chip U, a triode Q and a resistor RV, and is characterized in that one end of the resistor RV is connected with a capacitor C, a resistor R, a fuse F, a resistor R and an output end L, the other end of the fuse F is connected with a 220V mains supply, the other end of the capacitor C is connected with a cathode of an earphone D and an anode of a diode ZD through the resistor R, the other end of the resistor R is connected with a cathode of the diode D and a base electrode of the triode Q through the resistor R, a collector of the triode Q is connected with the resistor R, the capacitor C and a pin5 of the chip U, an emitter of the triode Q is connected with a light touch switch S, the resistor R, the anode of the diode D, the capacitor C, the resistor R and an emitter of the triode Q, the, The other end of the resistor RV1, the other end of the capacitor C3, the other end of the resistor R3, the other ends of the capacitors C6 and 220V alternating current, the other end of the resistor R6 is connected with the resistor R6 and the base of the transistor Q6, the other end of the tact switch S6 is connected with the pin 6 of the chip U6, the other end of the resistor R6 is connected with the pin2 of the chip U6, the collector of the transistor Q6 is connected with the resistor R6, the other point of the resistor R6 is connected with the other end of the capacitor C6 and the control electrode of the triac Q6, the pin 4 of the chip U6 is connected with the anode of the diode D6 and the capacitor C6, the cathode of the diode D6 is connected with the other end of the capacitor C6, one main electrode of the triac Q6, the NTC resistor and the pin1 of the chip U6, the other main electrode of the triac Q6 is connected with the inductor L6, the other end of the inductor L6 is connected with the resistor R6 and the resistor R6, the other end of the resistor R11 is connected with the capacitor C10 and the pin3 of the chip U1, and the other end of the capacitor C10 is connected with the resistor R12 and the pin 8 of the chip U1.
2. A touch-sensitive on-line dimmer circuit as claimed in claim 1, wherein said diode ZD1 is a zener diode.
3. A touch-sensitive on-line dimmer circuit as claimed in claim 1, wherein said transistor Q1 is of type S8050.
4. A touch-sensitive on-line dimmer circuit as claimed in claim 1, wherein said triac Q2 is of type BT 131.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022424230.4U CN213152438U (en) | 2020-10-27 | 2020-10-27 | Light touch type on-line dimmer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022424230.4U CN213152438U (en) | 2020-10-27 | 2020-10-27 | Light touch type on-line dimmer circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213152438U true CN213152438U (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022424230.4U Active CN213152438U (en) | 2020-10-27 | 2020-10-27 | Light touch type on-line dimmer circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213152438U (en) |
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2020
- 2020-10-27 CN CN202022424230.4U patent/CN213152438U/en active Active
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