CN101938874A - An integrated intelligent control lighting control circuit - Google Patents

Abstract

The invention discloses an integrated intelligent control type lighting lamp control circuit, comprising a power module, a backup power module, a control module and a light source module, wherein the input end of the light source module is connected with a power grid, and the output end of the light source module is connected with the input end of the backup power module and the control module; the control module is respectively connected with the output end of the backup power module and the light source module; wall switch detection modules are connected between the control module and the power grid in series; and the wall switch detection module, the control module, the power module, the backup power module, a wall switch and the power grid form a wall switch detection loop. The invention enables the existing wall switch to remotely control an emergency light switch, does not change the existing wiring of users, does not increase user cost, is convenient to use and is favourable for popularizing.

Description

An integrated intelligent control lighting control circuit

technical field

The present invention relates to an emergency lighting fixture, in particular to an integrated intelligent control lighting fixture control circuit.

Background technique

Emergency lights are lamps that use their own power supply to provide temporary lighting when the normal lighting system fails to provide normal lighting due to power supply failure. Except for the portable type, this kind of emergency lighting usually requires additional wiring and installation, and the switch on and off of the lighting is controlled by the built-in switch when needed, which is inconvenient to use. Now there is a kind of emergency bulb integrated with control circuit and backup power supply in the market, which can directly use the existing lamp holder, provide daily lighting function when the power supply is normal, and provide emergency lighting service when the power is cut off, which is convenient for users. However, this kind of emergency lighting bulb cannot judge the switch state of the wall switch, or it needs to make certain modifications to the circuit or wall switch of the user's wall to realize the use of the wall switch to control the switch of the emergency light bulb. Difficulties increase the cost of implementation and are not conducive to promotion.

Contents of the invention

In order to overcome the shortcomings of the prior art, the present invention provides an emergency lighting bulb control circuit that can be controlled by a wall switch without modifying the existing wall circuit and switch.

The technical solution adopted in the present invention can be described as:

An integrated intelligent control type lighting control circuit, including a power supply module, a backup power supply module, a control module and a light source module, wherein the input end of the power supply module is connected to the power grid, and the output end is connected to the input end of the backup power supply module and the control module , the control module is also respectively connected to the output terminal of the backup power module and the light source module, the emergency light control circuit also includes a wall switch detection module connected in series between the control module and the power grid, the wall switch detection module and The control module, the power module, the backup power module, the wall switch and the grid form a wall switch detection circuit.

The beneficial effects of the present invention are:

A signal detection loop composed of wall switch detection module, control module, power module, backup power supply module, wall switch and power grid is used to monitor the switch status of the wall switch, and the existing wall switch can be used to remotely control the emergency light switch without changing the user's current situation. With wiring, no increase in user costs, easy to use, and conducive to promotion. the

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

As shown in Figure 1, an emergency light control circuit includes a power supply module 1, a backup power supply module 2, a control module 3, a light source module 4 and a wall switch detection module 5, wherein the input terminal of the power supply module 1 is connected to the power grid, and the output terminal It is connected with the input end of the backup power supply module 2 and the control module 3, and the control module 3 is also respectively connected with the output end of the backup power supply module 2 and the light source module 4. The emergency light control circuit also includes a wall switch detection module 5 , the wall switch detection module 5 is connected in series between the control module 3 and the grid, and forms a signal detection loop with the control module 3, the power module 1, the backup power module 2, the wall switch and the grid.

Wherein, in this embodiment, the power module 1 is composed of a capacitor step-down circuit and a diode bridge rectifier circuit to output 16V direct current. The backup power supply module 2 is composed of an anti-overcharge circuit, an anti-self-excitation circuit, a charging indication circuit, an anti-backup power reverse connection circuit and a battery. The charging circuit needs to be changed accordingly.

The control module 3 is a signal comparison circuit and a control circuit, wherein the signal comparison circuit distinguishes and compares AC signals, DC signals and simultaneous AC and DC signals, and the control circuit uses triodes to switch the power supply of the light source module 4 .

In this embodiment, the light source module is composed of parallel-connected LED lamp beads with a withstand voltage of 3.0V-3.4V and a current limiting circuit. In actual implementation, the LED lamp beads can be replaced with ordinary lamp beads.

The wall switch detection module 5 is composed of a unidirectional diode and a resistor connected in series.

The wall switch detection module 5, the control module 3, the power supply module 1, the backup power supply module 2, the wall switch and the power grid form a wall switch detection circuit. When the wall switch is closed, the power grid is equivalent to a resistance load (in this embodiment, this The equivalent resistance is set to 47K, and can be changed according to the specific situation), and forms a closed loop with the wall switch, the wall switch detection module 5, and the power module 1. When the grid is powered off, the closed loop needs the backup power supply 2 to join the power supply ; If the wall switch is disconnected, the loop is disconnected, and the control module 5 judges the status of the wall switch accordingly.

When the emergency light control circuit is working, if the wall switch is closed and the grid power supply is normal, the control module 3 judges that the wall switch is closed through the wall switch detection circuit, and detects that the grid has power through voltage comparison, and the control module 3 connects the light source module 4 to the power supply At the output end of module 1, the LED lights up to provide normal lighting, and at the same time, the backup power charging module 2 charges the battery; if the grid power supply stops, the control module 3 is powered by the backup power module 2, and detects that the grid has no power through voltage comparison. The control module 3 connects the light source module to the output end of the backup power supply module 2, and the LED lights up to provide emergency lighting. When the wall switch is disconnected, no matter whether the power grid is powered or not, the detection module 3 judges that the wall switch is disconnected through the wall switch detection circuit, the control module 3 cuts off the power supply of the light source module 4, and the LED goes out.

During transportation and storage, in order to prevent the self-consumption of the control module 3 and the light source module 4, a switch SS23D01G4 is added to the control module 3, and the backup power supply module 2 is turned off to protect the lamps.

Claims (7)

1. An integrated intelligent control lighting control circuit, including a power module (1), a backup power module (2), a control module (3) and a light source module (4), wherein the input terminal of the power module (1) is connected to the The power grid behind the wall switch is connected, the output end is connected with the input end of the backup power supply module (2) and the control module (3), and the control module (3) is also connected with the output end of the backup power supply module (2) and the light source module respectively (4) connected, characterized in that: the emergency light control circuit also includes a wall switch detection module (5) connected in series between the control module (3) and the power grid behind the wall switch, and the wall switch detection module (5) ), together with the control module (3), power supply module (1), backup power supply module (2), wall switch and grid form a wall switch detection circuit. 2. An integrated intelligent control lighting fixture control circuit according to claim 1, characterized in that: the emergency light control circuit can judge the wall switch state through its wall switch detection circuit, and: When the wall switch is closed and the power grid is normally powered, the power grid is powered by AC power and the light source is turned on; When the wall switch is closed and the power grid is cut off, the backup power supply is used to supply power and the light source is turned on; When the wall switch is disconnected, the light source will be turned off no matter whether the grid has power or not. 3. An integrated intelligent control lighting lamp control circuit according to claim 1, characterized in that: the wall switch detection module (5) includes a one-way diode and a resistor connected in series. 4. An integrated intelligent control lighting lamp control circuit according to claim 1, wherein the power module (1) includes a capacitor step-down circuit and a diode bridge rectifier circuit. 5. An integrated intelligent control lighting control circuit according to claim 1, characterized in that: the backup power supply module (2) includes an overcharging circuit, an anti-self-excitation circuit, a charging indication circuit, and an anti-backup power supply Reverse circuit and battery. 6. An integrated intelligent control lighting lamp control circuit according to claim 1, characterized in that: the control module (3) contains a signal comparator and a triode switch circuit, which are used to control AC signals, DC signals and Simultaneous signals of AC and DC are compared and switched corresponding circuits. 7. An integrated intelligent control lighting control circuit according to claim 1, characterized in that: the light source module (4) includes a driving circuit and a light source.