KR20240040963A - LED dimming sensor light with emergency power - Google Patents

Abstract

The present invention relates to an LED dimming sensor light composed of an LED string that can be used both during a power outage and at all times. The present invention relates to a constant light that turns on constantly at all times using an AC-only LED driver IC and an LED sensor light using an AC-only LED driver IC. It is an LED dimming sensor light that includes an emergency power source that performs a dimming function by lighting up additionally for a certain period of time when detected.

Description

LED dimming sensor light with emergency power {LED dimming sensor light with emergency power}

The present invention relates to an LED dimming sensor that includes an emergency power source.

A sensor light is a lighting device that automatically turns on and off an LED lamp according to a person's movement, and can automatically extend as long as the movement continues. These sensors are very useful in common entrances, hallways, restrooms, underground parking lots, etc. The above LED sensor lights are generally installed in common entrances, hallways, emergency stairs, and ceilings of entrance doors of complex buildings such as apartments and large-scale buildings, so they are convenient to use because the user does not have to manually turn the power switch on/off. It turns on only when human movement is detected and then automatically turns off after a certain period of time, preventing unnecessary power waste. Since general sensor lights are designed to be driven by the input of 220VAC commercial AC power, in the event of a power outage, the 220VAC emergency power generated by the emergency generator inside the building is applied to the emergency power circuit to turn on the LED lights.

As mentioned in the background technology, the purpose of the present invention is that LED sensor lights, which are used in various fields, light only in the operating range of the sensor, so in the case of night when they are installed far away, they light up only when detected, thereby reducing anxiety. It can cause In particular, in the case of sensors on emergency staircases in apartments, the inconvenience increases if the sensing distance is short. To resolve this inconvenience, we provide an LED dimming sensor that solves the above problem by using two constant current driver ICs.

The LED dimming sensor of the present invention for achieving the above object includes a rectifier that rectifies commercial power into a direct current voltage; A rectifier (BD2) that rectifies the emergency power into a direct current voltage: the + power terminal of the commercial power rectifier and the + power terminal of the emergency power rectifier are connected; +The breather resistance module is connected between the ground and the power terminal; The + terminal of the commercial power rectifier and LED STRING are connected and located between the AC-only LED DRIVER IC module and the AC-only LED DRIVER IC module, and C_module and D_module are connected to the output terminal of B_module; C_module is located connected between B_module and ground; The current fixing resistor of C_module is installed and connected between C_module and the ground, and the current fixing resistor of D_module is installed connected to the D_module and E_module input terminals; G_module, which provides a constant voltage 5v output from the +power terminal, is located connected between the +power terminal and the F_module terminal; F_module, which receives DC5V from G_module and drives the motion sensor, is connected to the output of G_module and to the input of F-module; The F-module has a human body detection sensor function and a time setting function; The E_module, which receives signals from the F_module and acts as a switch, is connected to the ground; It is characterized in that BD1 and DIODE-A are connected and BD2 and DIODE-B are connected. The circuit operates as follows. a) When power is supplied to the constant line, + power is supplied through the rectifier, and this + power supplies voltage to A_module and B-module, B_module (LED turns on) operates, and AC dedicated LED constant current driver IC Through this, the LED lights are driven as much as the fixed resistance limits the current. b) When power is supplied to the constant line, + power is supplied through the rectifier, and the G_module is driven, generating 5v of power and supplied to the F-module. When the human body detection sensor signal comes in, the F_module switches the E_module and AC The dedicated constant current LED DRIVER IC D_module's fixed resistance limits the number of LED lights and LED STRINGs are additionally driven for the time set in F_module. The LED STRING is configured so that there is no problem even when the C_module and D_module, which are constant current AC driving ICs, are driven. The case where power is supplied to the constant line has been described. When the power is turned off on the regular line and the power is turned on on the emergency line, the + power terminals of rectifiers BD1 and BD2 are connected, so the circuit operation is the same. Even if the power is turned on at the same time as the regular line and the emergency line, there is no effect on the circuit operation, and even if the power fluctuation occurs, it is covered by the A_module and the AC-only LED driver IC, C_MODULE and D_module, so there is no problem with the circuit operation depending on the power supply.

According to the above embodiment, the emergency line and the permanent line are connected in common, so the power source is selected and the dimming circuit operates, so that the LED sensor light turns on at a certain level in places where people do not move, and when a person is detected, an additional brighter environment is created. You can create a comfortable environment for living by creating it for a certain period of time. In particular, there are many cases where lights are turned on at all times in places such as communal hallways or underground parking lots. LED dimming sensors are installed to save electricity costs and use fewer parts than existing SMPS, contributing to the lifespan of the lights.

Hereinafter, preferred embodiments of the present invention will be described in more detail. Permanent line block; There is a constant line L and a constant line N, and a fuse is connected to the constant line L. A varistor is connected between the output of the fuse and the constant line N, and a bridge diode, which is a rectifier, is connected to both ends of the varistor. emergency line block; There is an emergency line L and an emergency line N, and a fuse is connected to the emergency line L. A varistor is connected between the output of the fuse and the emergency line N, and a bridge diode, which is a rectifier, is connected to both ends of the varistor. Since there is a diode on the + terminal of the permanent line rectifier, it is not affected by the power of the emergency line. Also, since the diode is connected to the + terminal of the emergency line rectifier, it does not affect the power of the permanent line. The above description has a structure in which the regular and emergency lines are separated, but when power is supplied, the circuit that operates later takes the form of being driven by a commonly driven LED string and an AC-only constant current LED driver. The AC-only constant current LED driver that maintains constant LED lighting lights up the LED string according to the setting resistance value. The AC-only constant current LED driver, which operates as an LED dimming sensor, additionally lights up the LED string according to the setting resistance value, and when the sensor module that drives the AC-only constant current LED driver detects movement, it drives the switching module to drive the driver. . The sensor module that detects the movement can use a sensor module using the PIR method or a Doppler sensor, and the switch module switches using a FET. The power module configures the circuit using a 5V regulator. The breather resistance module maintains circuit stability due to voltage fluctuations. The driving voltage of the AC-only constant current LED driver operates between DC1 and DC250V, the operating temperature operates between -40 degrees and +140 degrees, and the accumulated temperature is -50 degrees and +150 degrees. Additionally, it contains a temperature compensation circuit and operates at around 110 degrees, so the circuit operates stably. When using the AC-only constant current LED driver, a circuit can be constructed at a lower cost than the existing SMPS method, and since the number of circuit parts is small, it is also competitive in terms of defects. As described above, the LED light that is always driven and the LED dimming sensor light that is driven by a sensor are integrated into one unit to pursue the lifespan of the LED light and the convenience of life.

Claims (1)

An LED dimming sensor that can use emergency power in the event of a power outage includes: a commercial power rectifier that rectifies commercial power into a direct current voltage; an emergency power rectifier that rectifies the emergency power into a direct current voltage; a breather resistance module that adjusts the output of the commercial power rectifier and the emergency power rectifier to a stable voltage level and outputs it; An LED module that has multiple LEDs and is connected to a breather module to light up; The output of the LED module and a constant current IC dedicated to AC LED are connected to the output of the IC; In a constant current IC, the resistor that sets the current value is connected to ground; The output of the LED module is connected to the input of the constant current IC dedicated to AC LED; The resistor that sets the constant current IC is connected to the output of the constant current IC and the input of the switching module through the operation of the sensor; The sensor module is connected to the output of the 5V power supply and the input of the sensor module, and the output of the sensor module is connected to the switching module; The power 5V generation module is connected to the sensor module and to the + output power of the regular rectifier and emergency rectifier; The breather resistance module is an LED dimming sensor characterized in that it is connected between the + output of the regular rectifier and the emergency rectifier and ground. a) When power is supplied from the regular line or emergency line, the LED module lights up because the AC-only constant current LED driver IC operates. b) When power is supplied to the permanent line or emergency line, the LED module operates and lights up, and when movement is detected in the sensor module, the AC dedicated constant current LED driver and switching module operate, and the LED module operates as an AC dedicated constant current LED driver. ), the brightness is additionally turned on according to the setting resistance value, and the lighting time is maintained for the time set in the sensor module. The LED dimming sensor light is characterized in that the dimming sensor light is configured using an AC-only constant current LED driver IC.