CN206433224U

CN206433224U - Extra exit lighting circuit

Info

Publication number: CN206433224U
Application number: CN201720109735.7U
Authority: CN
Inventors: 朱灵戈; 管少峰
Original assignee: ZHONGBANG CHEMICAL INDUSTRY Co Ltd DALIAN; Dalian Jia Yuan Electronic Science And Technology Co Ltd
Current assignee: ZHONGBANG CHEMICAL INDUSTRY Co Ltd DALIAN; Dalian Jia Yuan Electronic Science And Technology Co Ltd
Priority date: 2017-02-06
Filing date: 2017-02-06
Publication date: 2017-08-22
Anticipated expiration: 2027-02-06

Abstract

The utility model provides a kind of extra exit lighting circuit, including power circuit, battery management circuit, LED drive circuit, light Acquisition Circuit and timing controller circuit, power circuit connects battery management circuit, battery management circuit connects LED drive circuit, LED drive circuit connects LED lamp panel, and light Acquisition Circuit connects LED drive circuit by timing controller circuit.The luminous plate of extra exit sign is made of luminescent powder for the utility model, in the case of light, and luminescent powder fills energy with LED backlight plate after the luminous energy release storage in 1 hour or so to luminescent powder, realizes the function of duration time length after energy-conservation and power-off.

Description

Extra exit lighting circuit

Technical field

The utility model is related to lighting device technical field, more particularly to extra exit lighting device.

Background technology

Existing extra exit lighting device, the power-off back lighting time is short, when security incident occurs, it is impossible to maintain gold to rescue 48 hours, hidden danger is brought to life security.

The content of the invention

In order to overcome the problems such as conventional navigation instrument function is single, inconvenient for use, stability is poor, the utility model provides one Plant Ship GPS navigator.

The technical scheme that the utility model is used to achieve the above object is：Extra exit lighting circuit, including power supply Circuit, battery management circuit, LED drive circuit, light Acquisition Circuit and timing controller circuit, power circuit connection cell tube Circuit is managed, battery management circuit connection LED drive circuit, LED drive circuit connects LED lamp panel, and light Acquisition Circuit passes through fixed When controller circuitry connection LED drive circuit.

The power circuit is inverse-excitation type switch power-supply circuit.

The battery management circuit uses TP5410 chips, and booster circuit uses the no-load current pole that CMOS techniques are manufactured Low VFM switching mode DC/DC boost converters, PMOSFET built in charging circuit, and provided with anti-back flow circuit.

The LED drive circuit uses PT4110 boost conversion chips.

The light Acquisition Circuit uses photo resistance.

The timing control circuit is used as timing controller using STM8S103F3P6 chips.

Extra exit lighting circuit of the present utility model, the luminous plate of extra exit sign is made of luminescent powder, is not had In the case of light, luminescent powder fills energy to luminescent powder with LED backlight plate, realized after the luminous energy release storage in 1 hour or so The function of duration time length after energy-conservation and power-off.

Brief description of the drawings

Fig. 1 is the utility model extra exit lighting circuit schematic diagram.

Fig. 2 is the inverse-excitation type switch power-supply partial circuit diagram of the utility model extra exit lighting circuit.

Fig. 3 is the battery management circuit figure of the utility model extra exit lighting circuit.

Fig. 4 is the LED drive circuit figure of the utility model extra exit lighting circuit.

Fig. 5 is the LED drive circuit figure of the utility model extra exit lighting circuit.

Fig. 6 is the light Acquisition Circuit figure of the utility model extra exit lighting circuit.

Fig. 7 is the timing control circuit of the utility model extra exit lighting circuit.

Embodiment

The utility model extra exit lighting circuit principle is as shown in figure 1, including power circuit, battery management circuit, LED Drive circuit, light Acquisition Circuit and timing controller circuit, power circuit connection battery management circuit, battery management circuit connect LED drive circuit is connect, LED drive circuit connection LED lamp panel, light Acquisition Circuit connects LED by timing controller circuit and driven Dynamic circuit.The luminous plate of extra exit sign is made of luminescent powder, in the case of light, luminescent powder was in 1 hour or so handle After the luminous energy release of storage, energy is filled to luminescent powder with LED backlight plate, the work(of duration time length after energy-conservation and power-off is realized Energy.

Inverse-excitation type switch power-supply circuit is as shown in Figure 2.

Battery management circuit is as shown in figure 3, TP5410 is the special single-unit charger for lithium ion battery of a portable power source With constant 5V boost pressure controllers, charging part diversity high-accuracy voltage and battery regulator, preliminary filling, charged state are indicated and filled The functions such as electricity cut-off can export maximum 1A charging currents in one.And booster circuit uses the zero load that CMOS techniques are manufactured The extremely low VFM switching mode DC/DC boost converters of electric current.It has extremely low no-load power consumption（Less than 10uA）, and it is defeated to boost 1A can be reached by going out current drive capability., can be with plug and play without external key.Live part is linear voltage decreasing mode, built-in PMOSFET, adds anti-back flow circuit, so not needing external sense resistor and isolating diode.Thermal feedback can be to charging electricity Stream automatically adjusts, to be any limitation as under the conditions of high-power operation or high environment temperature to chip temperature, full of voltage It is fixed on 4.2V.Charging current can carry out outside setting by a resistor.After battery reaches 4.2V, charging current Setting electric current value 1/5 is gradually decreased down, TP5410 will terminate charging automatically.The same built-in power NMOSFET in boosting part, Less internal resistance can provide driving force and reach 5V/1A.Higher integrated level causes TP5410 only to need a small amount of peripheral components Can normal work.TP5410 is also integrated with charging temperature protection, and boost input power current limliting loop, can be according to loading condition Dynamic regulation electric current, and with quick response and overcurrent turn-off function function.Boost converter is therefore more domestic by the way of frequency conversion Outer like product has extremely low no-load power consumption, ripple, stronger driving force, and higher efficiency.

As shown in Figure 4 and Figure 5, PT4110 is a efficient boost conversion chip to LED drive circuit, and it uses single-unit Lithium battery power supply can drive multichannel white light LEDs, and single channel series connection is up to 8.And can maintain system high efficiency it can modulate White light LEDs operating current, reaches the effect of regulation LED brightness.Its main modulatory pathway has two kinds, is PWM respectively With the HVDC Modulation method for changing feedback resistance value.The chip uses 300mv feedback voltage, can be substantially reduced power consumption, carry High efficiency.PT4110 possesses many self-protection functions, such as open-circuit-protection, the overcurrent protection of Cycle by Cycle.Overtemperature protection, input Under-voltage protection, and soft start function.

Light Acquisition Circuit is as shown in fig. 6, intensity collection uses photo resistance NTC, when intensity of illumination change is that NTC is electric by force Resistance resistance drastically declines, and can obtain intensity signal by measuring the cloudy value of NTC resistance.

Timing control circuit is as shown in fig. 7, using STM8S103F3P6 as timing controller, STM8S103F3P6 is ST 8 low-power scms of company, 10 ADC of Embedded, for gathering ambient light intensity, use chip internal timer Control the LED illumination time.

Claims

1. extra exit lighting circuit, it is characterised in that：Including power circuit, battery management circuit, LED drive circuit, light Acquisition Circuit and timing controller circuit, power circuit connection battery management circuit, battery management circuit connection LED driving electricity Road, LED drive circuit connection LED lamp panel, light Acquisition Circuit connects LED drive circuit by timing controller circuit.

2. extra exit lighting circuit according to claim 1, it is characterised in that：The power circuit is flyback switching Power circuit.

3. extra exit lighting circuit according to claim 1, it is characterised in that：The battery management circuit is used TP5410 chips, booster circuit is using the extremely low VFM switching mode DC/DC boost conversions of the no-load current of CMOS techniques manufacture Device, PMOSFET built in charging circuit, and provided with anti-back flow circuit.

4. extra exit lighting circuit according to claim 1, it is characterised in that：The LED drive circuit is used PT4110 boost conversion chips.

5. extra exit lighting circuit according to claim 1, it is characterised in that：The light Acquisition Circuit is using photosensitive Resistance.

6. extra exit lighting circuit according to claim 1, it is characterised in that：The timing control circuit is used STM8S103F3P6 chips are used as timing controller.