Control drive circuit based on buoy application and night buoy

Abstract

The utility model discloses a buoy application-based control drive circuit and a night buoy, the circuit is configured to comprise a voltage reference module and a triode, the output of a buoy battery forms a stable voltage through the voltage reference module and then is connected to the base electrode of the triode through a resistor R1, so that the current of the base electrode of the triode is constant; a collector electrode of the triode serves as a first connecting end of the control drive circuit and is used for being connected with a floating LED lamp. The drive circuit enables the brightness of the LED lamp to be constant, and a user is not prone to halation and visual fatigue. And under the action of the voltage reference module, the problem that the electric quantity of the floating battery is consumed quickly at the beginning can be effectively solved, the effective working time of the floating battery is prolonged, and the brightness can be kept constant before the voltage of the floating battery is reduced to the voltage drop of the LED tube.

Description

Technical Field

[0001] The utility model relates to a control driving circuit based on a float application and a float for night use. Background Art

[0002] The fishing float floats on the water surface and reminds the angler whether the fish has been hooked by floating or sinking. In night fishing, in order to let the angler clearly see the state of the fishing float, most of the fishing floats used for night fishing are currently equipped with LED lights, so that the fishing float can glow on the water surface, which is convenient for the angler to see.

[0003] The working voltage of the existing night float battery is generally 2V-4.3V. As the power is consumed, the voltage changes rapidly, resulting in a significant change in the float brightness. When the float battery starts to discharge, the voltage is high, the float brightness is very high, even dazzling, and the user is prone to halo and visual fatigue. In addition, the current is very large at the beginning, the battery power is consumed quickly, and the effective working time of the float battery is short. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the utility model provides a control driving circuit based on a float application, which can solve the problem of fast power consumption of the float battery at the beginning and make the brightness of the LED lamp constant.

[0005] To this end, the control drive circuit provided by the utility model is configured to include a voltage reference module and a transistor. The output of the floating battery is formed into a stable voltage by the voltage reference module and then connected to the base of the transistor through resistor R1, so that the base current of the transistor is constant; the collector of the transistor serves as the first connection end of the control drive circuit, and is used for connecting a floating LED lamp.

[0006] In some implementations, the voltage reference module includes a resistor R and a Zener diode ZD connected in series with the resistor R to form a branch.

[0007] In some implementations, the voltage reference module includes a resistor R, and a diode D1 and a diode D2 that form a series branch with the resistor R.

[0008] In some implementations, the voltage reference module includes a resistor R, and a transistor T1 and a transistor T2 that form a series branch with the resistor R.

[0009] In some implementations, the voltage reference module includes a voltage regulator integrated circuit.

[0010] The utility model also provides a night float, which is equipped with a float battery, an LED lamp and a control drive circuit that enables the LED lamp to maintain constant brightness before the float battery voltage drops to the LED tube voltage drop. The control drive circuit is the control drive circuit provided by the utility model.

[0011] In some embodiments, the LED lamp is configured as a single LED or two or more LEDs.

[0012] The beneficial effects of the utility model: the driving circuit generates a stable voltage through the voltage reference module, and connects the voltage to the base of the transistor through the resistor R1. Since the on-voltage from the base to the emitter of the transistor is a stable voltage value, the base current Ib of the transistor is a constant value. According to the current amplification characteristic of the transistor, and the proportional relationship with its current amplification factor β, that is, the collector current Ic of the transistor is β times the base Ib, so Ic is a constant current. The floating LED lamp is connected to the collector of the transistor, and the current flowing through the floating LED lamp is equal to Ic, that is, the current driving the LED is constant, so that the brightness of the LED lamp is constant, and the user is not prone to dizziness and visual fatigue; and under the constant current drive, the problem of fast power consumption of the floating battery at the beginning can be effectively solved, and the effective working time of the floating battery is improved (this time refers to the luminous time that can make the floating LED lamp have a certain brightness), and the brightness can be kept constant before the floating battery voltage drops to the LED tube voltage drop. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0014] Figure 1 One of the circuit structures of the control drive circuit provided by the utility model;

[0015] Figure 2 The second circuit structure of the control drive circuit provided by the utility model;

[0016] Figure 3-Figure 10 This is the circuit structure of the voltage reference module described in the utility model. DETAILED DESCRIPTION

[0017] Example embodiments of the present invention will now be described more fully with reference to the accompanying drawings.

[0018] Reference Figure 1 , 2, the control drive circuit is configured with a voltage reference module and transistor Q1 to form a constant current drive circuit. The voltage reference module refers to a circuit unit that can output a stable voltage or an integrated circuit with equivalent functions, which generates a reference voltage Vref that flows into the base b of the transistor Q1 through the resistor R1. Therefore, the current flowing into the base b of the transistor Q1 can be calculated as: Ib = (Vref-Vbe) ÷ R1; where Vref is a constant value, and Vbe is the voltage drop from the base b to the emitter e of the transistor Q1, which can also be equivalent to a constant voltage, so it can be known that Ib is also a constant value.

[0019] Since the transistor Q1 has the current amplification characteristic and is proportional to its current amplification factor β, the current of the collector c of the transistor Q1 can be calculated by the following formula: Ic=β×Ib. Since Ib is constant and β is constant within a certain range, Ic is constant. The collector of the transistor Q1 serves as the first connection terminal of the control drive circuit and is used to connect the floating LED lamp. The current flowing through the LED lamp is equal to Ic, so the current driving the LED lamp is also constant.

[0020] Reference Figure 3-Figure 10 , this article provides four types of voltage reference modules, which are as follows:

[0021] 1) Including resistor R and Zener diode ZD, when transistor Q1 adopts NPN ( Figure 1 ), Figure 3 One end of the resistor R serves as the second connection end of the control drive circuit, and the other end is connected to the cathode of the voltage regulator diode ZD, and is connected in series with the resistor R1 and the base b of the transistor Q1 as the output end of the voltage reference module; the anode of the voltage regulator diode ZD serves as the third connection end of the control drive circuit.

[0022] When transistor Q1 adopts PNP ( Figure 2 ), Figure 7 One end of the middle resistor R serves as the third connection end of the control drive circuit, and the other end is connected to the anode of the voltage zener diode ZD, and is connected in series with the resistor R1 and the base b of the transistor Q1 as the output end of the voltage reference module; the cathode of the voltage zener diode ZD serves as the second connection end of the control drive circuit.

[0023] 2) Including resistor R, diode D1 and diode D2, when transistor Q1 adopts NPN ( Figure 1 ), Figure 4 One end of the resistor R serves as the second connection end of the control drive circuit, and the other end is connected to the anode of the diode D1, and is connected in series with the resistor R1 and the base b of the transistor Q1 as the output end of the voltage reference module; the cathode of the diode D1 is connected to the anode of the diode D2, and the cathode of the diode D2 serves as the third connection end of the control drive circuit.

[0024] When transistor Q1 adopts PNP ( Figure 2 ), Figure 8 One end of the middle resistor R serves as the third connection end of the control drive circuit, and the other end is connected to the cathode of the diode D1, and is connected in series with the resistor R1 and the base b of the transistor Q1 as the output end of the voltage reference module; the anode of the diode D1 is connected to the cathode of the diode D2, and the anode of the diode D2 serves as the second connection end of the control drive circuit.

[0025] 3) Including resistor R, transistor T1 and transistor T2, when transistor Q1 adopts NPN ( Figure 1 ), Figure 5 One end of the resistor R serves as the second connection end of the control drive circuit, and the other end is connected to the collector of the transistor T1, and is connected in series with the resistor R1 and the base b of the transistor Q1 as the output end of the voltage reference module; the base of the transistor T1 is connected to the collector, and the emitter is connected to the collector of the transistor T2; the base of the transistor T2 is connected to the collector, and the emitter serves as the third connection end of the control drive circuit.

[0026] When transistor Q1 adopts NPN ( Figure 2 ), Fig. 9 One end of the resistor R serves as the second connection end of the control drive circuit, and the other end is connected to the emitter of the transistor T1, and is connected in series with the resistor R1 and the base b of the transistor Q1 as the output end of the voltage reference module; the base of the transistor T1 is connected to the collector, and the collector is connected to the emitter of the transistor T2; the base of the transistor T2 is connected to the collector, and the collector serves as the third connection end of the control drive circuit.

[0027] 4) Including voltage regulator integrated circuits, such as Figure 6 , Fig.10 shown.

[0028] In the control drive circuit, pin 2 of the voltage reference module is the second connection terminal of the drive control circuit, pin 3 is the third connection terminal of the drive control circuit, and pin 1 is the output terminal of the voltage reference module.

[0029] When transistor Q1 is NPN ( Figure 1 ), Figure 6 The second connection end is used to connect the positive electrode of the floating battery B and the positive electrode of the floating LED lamp. Under this structure, the output pin 1 of the voltage reference module is connected in series with the resistor R1 and the base b of the transistor Q1; the negative electrode of the floating LED lamp is connected to the collector of the transistor Q1; the third connection end is used to connect the negative electrode of the floating battery B and the emitter of the transistor Q1.

[0030] When transistor Q1 is PNP ( Figure 2 ), Fig.10The second connection end is used to connect the positive electrode of the floating battery B and the emitter of the transistor Q1, and the third connection end is used to connect the negative electrode of the floating battery B and the cathode of the floating LED. Under this structure, the output pin 1 of the voltage reference module is connected in series with the resistor R1 and the base b of the transistor Q1; the anode of the floating LED lamp is connected to the collector of the transistor Q1.

[0031] This control drive circuit:

[0032] 1) The current flowing through the LED lamp can be kept constant in the range of the float battery power dropping from 100% to 10%, which effectively solves the problem of fast power consumption of the float battery at the beginning and improves the effective working time of the float battery as a whole. Generally, the working time of a CR316 syringe battery is increased to about 15 hours, which is much higher than the existing float effective working time of about 6 hours.

[0033] 2) Keep the brightness of LED lights constant, so users are less likely to experience glare and visual fatigue.

[0034] 3) The configuration of this control drive circuit increases the working time, and the night float can use a CR311 battery with smaller capacity and lighter weight.

[0035] This control drive circuit is composed of fewer components, small size and low cost; the voltage reference module circuit structure varies a lot, Figure 6-10 The circuit shown is an exemplary structure. Semiconductor components and resistors and capacitors can be added to adjust performance parameters according to configuration requirements, and can also be used in combination. It can be suitable for LED lamps with an operating current range of 0.1 to 10 mA. The brightness can be kept constant before the battery voltage drops to the LED tube voltage drop. The constant brightness time can be increased by selecting a transistor Q1 with a smaller tube voltage drop.

[0036] This article describes the transistor Q1 as an example of a transistor. Those skilled in the art should understand that the purpose of the control drive circuit can be achieved by replacing it with a Darlington transistor that meets the requirements, and it should also be understood as the transistor Q1 in the control drive circuit.

[0037] The control drive circuit is applied to the float, and together with the float battery V1 (referring to the component that provides power for the LED light on the float, which can be a battery or an independent power management module) and the LED light, constitutes a night float. The connection relationship between the float battery, the LED light and the control drive circuit is combined. Figure 1-Figure 10 ; The LED lamp is a single or multiple LED lamp beads connected in parallel.

[0038] The present disclosure has been described by the above-mentioned relevant embodiments, but the above-mentioned embodiments are only examples for implementing the present disclosure. It must be pointed out that the disclosed embodiments do not limit the scope of the present disclosure. On the contrary, changes and modifications made without departing from the spirit and scope of the present disclosure are all within the scope of patent protection of the present disclosure.

Claims

1. A control driving circuit based on a float application, characterized in that: The circuit is configured to include a voltage reference module and a transistor. The output of the floating battery forms a stable voltage through the voltage reference module and then is connected to the base of the transistor through a resistor R1, so that the base current of the transistor is constant; the collector of the transistor serves as the first connection terminal of the control drive circuit and is used for connecting a floating LED lamp.

2. The control driving circuit based on floating application according to claim 1 is characterized in that: The voltage reference module includes a resistor R and a voltage stabilizing diode ZD which forms a series branch with the resistor R.

3. The control driving circuit based on floating application according to claim 1 is characterized in that: The voltage reference module includes a resistor R, and a diode D1 and a diode D2 which form a series branch with the resistor R.

4. The control driving circuit based on floating application according to claim 1, characterized in that: The voltage reference module includes a resistor R, and a transistor T1 and a transistor T2 which form a series branch with the resistor R.

5. The control driving circuit based on floating application according to claim 1, characterized in that: The voltage reference module includes a voltage stabilizing integrated circuit.

6. A night float, characterized in that: The invention is provided with a floating battery, an LED lamp and a control driving circuit which enables the LED lamp to maintain constant brightness before the floating battery voltage drops to the voltage drop of the LED tube, and the control driving circuit is the control driving circuit described in any one of claims 1-5.

7. The night float according to claim 6, characterized in that: The LED lamps are configured as a single lamp or two or more lamps.

Images