CN2169246Y

CN2169246Y - Energy-saving switch controlled by sound, light and contact

Info

Publication number: CN2169246Y
Application number: CN 93206145
Authority: CN
Inventors: 马集银; 方竹荣; 柳悦; 周顺清
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-07
Filing date: 1993-03-07
Publication date: 1994-06-15
Anticipated expiration: 2003-03-07

Abstract

The utility model relates to an energy saving switch controlled by sound, light and contact, which is composed of a sensing circuit, an amplifying circuit, a detection circuit, a time delay circuit, a controlled silicon triggering circuit and a positive feedback circuit. The utility model is characterized in that the sensing circuit used for receiving signals is connected with the amplifying circuit, the time delay circuit which has the characteristic of the soft start of zero passage triggering, and the detection circuit are connected with the amplifying circuit, the controlled silicon triggering circuit is connected with the time delay circuit, and a switch of a major loop is formed by connecting a controlled silicon SCR and a load IP in series. When light is dim, and lighting is needed, the switch can be automatically and softly started for the lighting by means of walking sound, speaking sound, hand striking sound, etc., and the lighting is automatically extinguished after certain delay time.

Description

Energy-saving switch controlled by sound, light and contact

The utility model belongs to the electronic switching device that utilization sound, light or touch sensible are controlled light source.

Chinese patent CN2117672U discloses a kind of fuzzy control intelligent switch, form by acousto-optic control circuit, power circuit, thyristor gating circuit etc., can realize turning on and off power supply automatically according to the ambient sound size,, be not easy to install because this circuit has trifocal output.Chinese patent CN2037902U discloses a kind of photoacoustic dual-controlled battery-conserving switch, mainly form by circuit elements such as photoacoustic dual-controlled silicon circuits for triggering, sound wave amplifying circuit, delay circuits, owing in circuit, be provided with voltage drop elements such as transformer, the switching device energy consumption is increased, cost, volume increase.The deficiency that has reliability, stable aspect simultaneously.

The purpose of this utility model is to provide a kind of sound, light, touch control power down switch, and it can make the energy consumption of switching device reduce effectively, prolongs delay time, improves the reliability and stability of switching device, is convenient to simultaneously install.

The purpose of this utility model is achieved in that sound, light, touch control power down switch, form by major loop switch, sensing circuit, amplifying circuit, detecting circuit, delay circuit, thyristor gating circuit, regenerative circuit, the sensing circuit that is used to receive letter person is connected with amplifying circuit, delay circuit with soft-start behavior of zero cross fired, detecting circuit is connected with amplifying circuit, and thyristor gating circuit is connected with delay circuit; The major loop switch is composed in series by controllable silicon SCR and load LP; The major loop switch is connected with load LP by controllable silicon SCR and is organized into; Delay circuit 4 combines with the signal of telecommunication of thyristor gating circuit 5 and forms Miller integrator stored charge, output LOW voltage; The output voltage of delay circuit 4 and comparative level relatively trigger thyristor gating circuit.

The utility model reduces the energy consumption of switching device owing to do not establish voltage drop element such as transformer, reduces cost simultaneously, reduced volume; Owing to adopted the delay circuit of forming jointly by Miller integrator and switch integrating circuit, made capacitor C ₁, resistance R ₂Select kind, capacity more flexible; Owing to adopt delay circuit to cooperate with circuits for triggering and controllable silicon SCR, make to the utlity model has near the feature that starts the no-voltage, reach the purpose of lengthening the life and reducing radio interference; When the controllable silicon SCR conducting and control loop strong positive feedback effect is arranged, delay circuit reaches at once holds up a voltage, not controlled by volume, the circuit antijamming capability strengthens, so switching device has very high stability; This circuit has the output of two end formulas simultaneously, is convenient to install.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a circuit block diagram of the present utility model.

Fig. 2 is circuit theory diagrams of the present utility model (Fig. 2 double as specification digest accompanying drawings).

Fig. 3 is an embodiment of the present utility model.

Among the figure: the 1-sensing circuit; 2-sound amplifying circuit, the sinusoidal detecting circuit of 3-; The 4-delay circuit; The 5-thyristor gating circuit; The regenerative circuit of 6-and amplifier circuit power supply compatibility; 7-major loop switch; The 8-touch sensible; 9-load LP.

Operation principle of the present utility model: the major loop switch is composed in series by controllable silicon SCR and load LP; Sensing circuit is made up of light sensor G or sonic transducer S or touch sensor; Delay circuit is made up of Miller integrator and switch integrating circuit, and Miller integrator is by capacitor C ₁, triode T ₃, resistance R ₂Form, the switch integrating circuit is made up of Miller integrator and major loop, controllable silicon SCR; Thyristor gating circuit is by triode T ₄, resistance R ₃, controllable silicon SCR forms.The sensing circuit 1 that light sensor G, sonic transducer C or touch sensible body are formed, when the illuminance of using point was lower than certain level, light sensor G showed high impedance; As footsteps, when clapping the hands sound or voice, sonic transducer S is with the phonoreception voltage signal, through T ₁, T ₂Two-stage is amplified, and exports after the detection; Delay circuit 4 combines with the signal of telecommunication of thyristor gating circuit 5 and forms the Miller integrator stored charge, makes Miller integrator output LOW voltage signal, when this point voltage signal is enough low, and the triode T of controllable silicon SCR control end ₄End, the controllable silicon SCR conducting, it is that load LP is bright that lighting circuit is connected.After sound disappears, C ₁Discharge drives triode T ₃, T ₄, make controllable silicon SCR continue conducting, capacitor C ₁After the discharge to a certain degree, the output voltage of delay circuit 4 is lower than triode T ₃Comparative level the time, controllable silicon SCR is ended, lighting circuit disconnects.

Node A, B in node A, the B map interlinking 2 among Fig. 3, when this switching device when demanded power output is big, the two-way controllable silicon of can connecting.

In the utility model, light sensor, sonic transducer, touch sensor can make up in twos, also can use (except the independent use of optical sensor) to constitute sensing circuit separately.

Claims

1, a kind of sound, light, touch control power down switch are made up of major loop switch, sensing circuit, amplifying circuit, detecting circuit, delay circuit, thyristor gating circuit, regenerative circuit, it is characterized in that:

A, the sensing circuit that is used for received signal are connected with amplifying circuit, and delay circuit, detecting circuit with soft-start behavior of zero cross fired are connected with amplifying circuit, and thyristor gating circuit is connected with delay circuit;

B, major loop switch are composed in series by controllable silicon SCR and load LP.