Circuit for reducing power consumption of PIR solar lamp

Abstract

The utility model discloses a circuit for reducing power consumption of a PIR solar lamp, which comprises a first connecting terminal P1, the positive electrode end of the first connecting terminal P1 is respectively connected with the positive electrode end of a light source LED, the input end of a first voltage stabilizing module and the input end of a second voltage stabilizing module, and the output end of the first voltage stabilizing module is connected with the input end of a PIR sensing module. The output end of the second voltage stabilizing module is connected with the input end of the control module, the signal end of the PIR sensing module is connected with the enabling input end of the second voltage stabilizing module, the PWM end of the control module is connected with the LED control module, and the LED control module is connected with the negative electrode end of the light source LED. According to the utility model, the signal end of the PIR sensing module is connected with the enabling input end of the second voltage stabilizing module, and the output of the second voltage stabilizing module is controlled through the PIR sensing module, so that the control module is in a power-off and non-working state under the condition that human motion is not detected, the power consumption of the control module is reduced, and the service time of the lamp is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to solar lamp circuit technical field, specifically related to a kind of circuit for reducing PIR solar lamp power consumption. BACKGROUND

[0002] At present, the traditional PIR solar lamp main control chip is always in working state, when human body movement is not detected, the single-chip microcomputer is in working state for a long time.

[0003] In actual use, the single-chip microcomputer is in working state for a long time, which leads to energy waste, and the lighting lamp consumes more energy, and the battery capacity of PIR solar lamp is generally small, which leads to shorter use time.

[0004] Therefore, a kind of circuit for reducing PIR solar lamp power consumption is needed, to reduce the power consumption of PIR solar lamp and increase the use time. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of circuit for reducing PIR solar lamp power consumption to solve the problems raised in the above background technology.The utility model provides a kind of circuit for reducing PIR solar lamp power consumption, which has the characteristics of reducing the power consumption of PIR solar lamp and increasing use time.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of circuit for reducing PIR solar lamp power consumption, including the first connection terminal P1 connected with battery and the second connection terminal P2 connected with solar panel, wherein the positive terminal of second connection terminal P2 is connected with the positive terminal of diode D1, the negative terminal of diode D1 is connected with the positive terminal of first connection terminal P1, the positive terminal of first connection terminal P1 is connected with the positive terminal of light source LED, the input end of first voltage stabilizing module and the input end of second voltage stabilizing module respectively, the output end of first voltage stabilizing module is connected with the input end of PIR sensing module, the output end of second voltage stabilizing module is connected with the input end of control module, the signal end of PIR sensing module is connected with the enable input end of second voltage stabilizing module, the PWM end of control module is connected with LED control module, and the negative terminal of LED control module is connected with light source LED.

[0007] To control the whole circuit, further, control module includes chip U3, the 1 foot of chip U3 is connected with the output end of second voltage stabilizing module, the 8 foot of chip U3 is connected with GND end, and there is capacitor CS5 in parallel between the 1 foot and the 8 foot of chip U3, the 3 foot of chip U3 is connected with the signal end of PIR sensing module, and the 4 foot of chip U3 is connected with LED control module.

[0008] In order to supply power for the PIR sensing module, further, the first voltage stabilizing module comprises a chip U1, the 3-pin of the chip U1 is connected with the positive terminal of the first connecting terminal P1, the 3-pin of the chip U1 is also connected with one end of the capacitor CS1 and the capacitor CE1 respectively, the 2-pin of the chip U1 is connected with the PIR sensing module and one end of the capacitor CS2, the 1-pin of the chip U1 and the other end of the capacitor CS1, the capacitor CE1 and the capacitor CS2 are connected with the GND terminal respectively.

[0009] In order to supply power for the control module, further, the second voltage stabilizing module comprises a chip U2, the 1-pin of the chip U2 is connected with the positive terminal of the first connecting terminal P1, the 1-pin of the chip U2 is also connected with one end of the capacitor CE2 and the capacitor CS3 respectively, the 5-pin of the chip U2 is connected with the control module and one end of the capacitor CE3 and the capacitor CS4, the 3-pin of the chip U2 is connected with one end of the resistor R1 and the signal terminal of the PIR sensing module, the 2-pin of the chip U2 and the other end of the capacitor CE2, the capacitor CS3, the capacitor CE3, the capacitor CS4 and the resistor R1 are connected with the GND terminal respectively.

[0010] In order to control the state of the light source LED, further, the LED control module comprises a MOS tube Q1, the gate of the MOS tube Q1 is connected with one end of the resistor R2 and the resistor R3 respectively, the drain of the MOS tube Q1 is connected with one end of the resistor R4, the resistor R5 and the resistor R6 respectively, the other end of the resistor R4, the resistor R5 and the resistor R6 is connected with the negative terminal of the light source LED respectively, the other end of the resistor R3 and the source of the MOS tube Q1 are connected with the GND terminal respectively, the other end of the resistor R2 is connected with the PWM terminal of the control module.

[0011] In order to adjust the brightness of the light source LED, further, the dial switch SW1 is also included, the 2-pin of the dial switch SW1 is connected with the GND terminal, the 3-pin of the dial switch SW1 is connected with the 6-pin of the chip U3, the 4-pin of the dial switch SW1 is connected with the 5-pin of the chip U3.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a first voltage stabilizing module supplies power for the PIR sensing module, a second voltage stabilizing module supplies power for the control module, and the signal terminal of the PIR sensing module is connected with the enable input terminal of the second voltage stabilizing module, and the output of the second voltage stabilizing module is controlled through the PIR sensing module, thereby controlling whether the control module works or not, and realizing that the control module is in the power-off non - working state under the condition that human body movement is not detected, thereby reducing the power consumption of the control module, increasing the use time of the lamp.

[0014] 2, the utility model discloses through the different PWM signal duty cycle of dial switch SW1 adjustment, thereby through the corresponding PWM signal of control module output, realize the adjustment of light source LED brightness. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the circuit diagram of the utility model;

[0016] Figure 2 It is the circuit diagram of the first voltage stabilizing module of the utility model;

[0017] Figure 3 It is the circuit diagram of the second voltage stabilizing module of the utility model;

[0018] Figure 4 It is the circuit diagram of the LED control module of the utility model; DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] Please refer to Figures 1-4 The utility model provides the following technical scheme: a circuit for reducing the power consumption of PIR solar lamp, comprising a first connection terminal P1 connected with a storage battery and a second connection terminal P2 connected with a solar panel, wherein the positive terminal of the second connection terminal P2 is connected with the positive terminal of a diode D1, the negative terminal of the diode D1 is connected with the positive terminal of the first connection terminal P1, the negative terminal of the second connection terminal P2 is a GND terminal, the positive terminal of the first connection terminal P1 is connected with the positive terminal of a light source LED, the input terminal of a first voltage stabilizing module and the input terminal of a second voltage stabilizing module respectively, the output terminal of the first voltage stabilizing module is connected with the input terminal of a PIR sensing module, the output terminal of the second voltage stabilizing module is connected with the input terminal of a control module, the signal terminal of the PIR sensing module is connected with the enable input terminal of the second voltage stabilizing module, the PIR sensing module comprises a chip U4, the model number of the chip U4 is BL312, the PWM end of the control module is connected with an LED control module, and the LED control module is connected with the negative terminal of the light source LED.

[0022] The utility model discloses a through adopt above -mentioned technical scheme, the first voltage stabilizing module is powered for PIR response module, through the second voltage stabilizing module is powered for control module, and the signal end of PIR response module is connected with the enable input end of second voltage stabilizing module, and the output of second voltage stabilizing module is controlled through PIR response module, thereby control whether control module works, realize the control module in the non - detection human body movement condition is in power - off non - working state, thereby reduce the power consumption of control module, increase the use time of lamp.

[0023] Specifically, the control module includes a chip U3, the model of the chip U3 is PL51T020-8PIN, the 1 pin of the chip U3 is connected with the output end of the second voltage stabilizing module, the 8 pin of the chip U3 is connected with the GND end, the capacitor CS5 is connected in parallel between the 1 pin and the 8 pin of the chip U3, the 3 pin of the chip U3 is connected with the signal end of the PIR response module, and the 4 pin of the chip U3 is connected with the LED control module.

[0024] Through the above technical scheme, the control for the whole circuit is used.

[0025] Specifically, the first voltage stabilizing module includes a chip U1, the model of the chip U1 is AS7130, the 3 pin of the chip U1 is connected with the positive end of the first connecting terminal P1, the 3 pin of the chip U1 is also connected with one end of the capacitor CS1 and the capacitor CE1 respectively, the 2 pin of the chip U1 is connected with one end of the PIR response module and the capacitor CS2, and the 1 pin of the chip U1 and the other end of the capacitor CS1, the capacitor CE1 and the capacitor CS2 are connected with the GND end respectively.

[0026] Through the above technical scheme, the PIR response module is powered.

[0027] Specifically, the second voltage stabilizing module includes a chip U2, the model of the chip U2 is TPS70930, the 1 pin of the chip U2 is connected with the positive end of the first connecting terminal P1, the 1 pin of the chip U2 is also connected with one end of the capacitor CE2 and the capacitor CS3 respectively, the 5 pin of the chip U2 is connected with one end of the control module, the capacitor CE3 and the capacitor CS4, the 3 pin of the chip U2 is connected with one end of the resistor R1 and the signal end of the PIR response module, and the 2 pin of the chip U2 and the other end of the capacitor CE2, the capacitor CS3, the capacitor CE3, the capacitor CS4 and the resistor R1 are connected with the GND end respectively.

[0028] Through the above technical scheme, the control module is powered.

[0029] Specifically, the LED control module comprises a MOS tube Q1, a gate of the MOS tube Q1 is connected with one end of a resistor R2 and one end of a resistor R3 respectively, a drain of the MOS tube Q1 is connected with one end of a resistor R4, one end of a resistor R5 and one end of a resistor R6 respectively, the other end of the resistor R4, the resistor R5 and the resistor R6 is connected with a negative electrode end of the light source LED respectively, the other end of the resistor R3 and a source of the MOS tube Q1 are connected with a GND end respectively, the other end of the resistor R2 is connected with a PWM end of the control module.

[0030] By adopting the technical scheme, the state of the light source LED is controlled.

[0031] Embodiment 2

[0032] The embodiment differs from the embodiment 1 in that: specifically, a code switch SW1 is further included, a 2-pin of the code switch SW1 is connected with a GND end, a 3-pin of the code switch SW1 is connected with a 6-pin of a chip U3, and a 4-pin of the code switch SW1 is connected with a 5-pin of the chip U3.

[0033] By adopting the technical scheme, different PWM signal duty cycles are adjusted through the code switch SW1, so that corresponding PWM signals are output through the control module, and the brightness of the light source LED is adjusted.

[0034] In conclusion, the first voltage stabilizing module is used for supplying power for the PIR sensing module, the second voltage stabilizing module is used for supplying power for the control module, the signal end of the PIR sensing module is connected with the enable input end of the second voltage stabilizing module, the output of the second voltage stabilizing module is controlled through the PIR sensing module, so that whether the control module works is controlled, the control module is kept in a power-off non-working state in the case that no human body movement is detected, the power consumption of the control module is reduced, and the use time of the lamp is increased; the code switch SW1 is used for adjusting different PWM signal duty cycles, so that corresponding PWM signals are output through the control module, and the brightness of the light source LED is adjusted.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit for reducing the power consumption of PIR solar lamps, characterized in that: The first connection terminal P1 is connected with the battery, and the second connection terminal P2 is connected with the solar panel, wherein the positive terminal of the second connection terminal P2 is connected with the positive terminal of the first connection terminal P1, the positive terminal of the first connection terminal P1 is connected with the positive terminal of the light source LED, the input terminal of the first voltage stabilizing module and the input terminal of the second voltage stabilizing module respectively, the output terminal of the first voltage stabilizing module is connected with the input terminal of the PIR sensing module, the output terminal of the second voltage stabilizing module is connected with the input terminal of the control module, the signal terminal of the PIR sensing module is connected with the enable input terminal of the second voltage stabilizing module, the PWM terminal of the control module is connected with the LED control module, and the LED control module is connected with the negative terminal of the light source LED.

2. The circuit for reducing power consumption of a PIR solar light fixture according to claim 1, wherein: The control module comprises a chip U3, the 1 pin of the chip U3 is connected with the output terminal of the second voltage stabilizing module, the 8 pin of the chip U3 is connected with the GND terminal, the capacitor CS5 is connected in parallel between the 1 pin and the 8 pin of the chip U3, the 3 pin of the chip U3 is connected with the signal terminal of the PIR sensing module, and the 4 pin of the chip U3 is connected with the LED control module.

3. The circuit for reducing power consumption of PIR solar light fixture according to claim 1, characterized in that: The first voltage stabilizing module comprises a chip U1, the 3 pin of the chip U1 is connected with the positive terminal of the first connection terminal P1, the 3 pin of the chip U1 is also connected with one end of the capacitor CS1 and the capacitor CE1 respectively, the 2 pin of the chip U1 is connected with the PIR sensing module and one end of the capacitor CS2, and the 1 pin of the chip U1 and the other end of the capacitor CS1, the capacitor CE1 and the capacitor CS2 are connected with the GND terminal respectively.

4. The circuit for reducing power consumption of PIR solar light fixture according to claim 1, characterized in that: The second voltage stabilizing module comprises a chip U2, the 1 pin of the chip U2 is connected with the positive terminal of the first connection terminal P1, the 1 pin of the chip U2 is also connected with one end of the capacitor CE2 and the capacitor CS3 respectively, the 5 pin of the chip U2 is connected with the control module and one end of the capacitor CE3 and the capacitor CS4, the 3 pin of the chip U2 is connected with one end of the resistor R1 and the signal terminal of the PIR sensing module, and the 2 pin of the chip U2 and the other end of the capacitor CE2, the capacitor CS3, the capacitor CE3, the capacitor CS4 and the resistor R1 are connected with the GND terminal respectively.

5. The circuit for reducing power consumption of PIR solar light fixture according to claim 1, characterized in that: The LED control module comprises a MOS tube Q1, the gate of the MOS tube Q1 is connected with one end of the resistor R2 and the resistor R3 respectively, the drain of the MOS tube Q1 is connected with one end of the resistor R4, the resistor R5 and the resistor R6 respectively, the other end of the resistor R4, the resistor R5 and the resistor R6 is connected with the negative terminal of the light source LED respectively, the other end of the resistor R3 and the source of the MOS tube Q1 are connected with the GND terminal respectively, and the other end of the resistor R2 is connected with the PWM terminal of the control module.

6. The circuit for reducing power consumption of PIR solar light fixture according to claim 1, characterized in that: The positive terminal of the second connection terminal P2 is connected with a diode D1, and the positive terminal of the diode D1 is connected with the positive terminal of the second connection terminal P2.

7. The circuit for reducing power consumption of PIR solar light fixture according to claim 2, characterized in that: The dial switch SW1 is also included, the 2 pin of the dial switch SW1 is connected with the GND terminal, the 3 pin of the dial switch SW1 is connected with the 6 pin of the chip U3, and the 4 pin of the dial switch SW1 is connected with the 5 pin of the chip U3.

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