JPS5837550B2 - lamp ten metsouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION It is an object of the present invention to provide a lamp blinking device which uses a non-contact structure to prevent poor contact due to dust etc., improves durability, and has a large degree of freedom in setting the number of blinks.

In conventional lamp flashing devices, the flashing control consists of a rotary switch, which causes many problems with the durability of the contacts and poor contact due to dust, etc.
It had the disadvantage that the number of blinks was determined by a rotary switch and was limited.

The present invention provides an mn blinking lamp blinking device which improves the durability and poor contact which are the disadvantages of the above-mentioned conventional example, and which has a large degree of freedom in setting the number of blinks.

An embodiment of the present invention will be described below with reference to FIG.

First, in FIG. 1, 1 is a pulse generation circuit that supplies clock pulses for a shift register 2, which will be described later, and 2 is (m+n
) bit serial input and parallel output shift register; 3 is a reset circuit that resets the shift register 2 when the power is turned on; 4 is the m-th output and (m+n)-th inverted output of the shift register 2; 5 is an inverter, 6 is a lamp drive circuit composed of known means such as a transistor with an amplification function, and 7 is (m+n) blinking lamps. be.

Here, m≧n. Next, let's talk about the operation in the first part.
The explanation will be given based on the figure and FIG.

First, when the power is turned on, the output Q, ~Qm + n of the shift register 2 is changed by the reset circuit 3 to CL= in FIG.
As shown in 0, all are //0.

Then, as shown in FIG. 2, the outputs Q1 to Qm+n of the shift register 2 are successively changed by the clock pulses supplied from the pulse generating circuit 1.

Here, the output Qm-//1 of shift register 2, Qm
Since +n=//o is read, the blinking lamp 7 performs a normal repeating operation of blinking mn from the mth clock pulse.

FIG. 3 shows a specific example of 5 points, 2 blinks, and the normal 5 points, 2 blinks repeats from the 5th clock pulse.

Further, as described above, a blinking device where m<n cannot be configured in terms of operation.

The present invention is constructed as described above, and has the following effects.

i) Since it has a non-contact configuration, there are fewer contact failures due to dust etc., and it is also highly durable.

11) The number of blinks can be set freely, making it versatile.

M) Size can be reduced by using integrated circuits for shift registers and block elements.

[Brief explanation of the drawing]

FIG. 1 is an electrical block diagram showing an embodiment of the lamp flashing device according to the present invention, FIG. 2 is an operational truth table showing the relationship between the clock pulse of the device and the output of the shift register, and FIG. It is an operation truth table diagram in the case of 5 dots and 2 blinks of the same device. 1... Pulse generation circuit, 2... Shift register, 3... Reset circuit, 7...
・Flashing lamp.

Claims (1)

[Claims] 1 (m+n) bit (m≧n) serial input/parallel output shift register, a reset circuit that resets the shift register when power is turned on, and a pulse generation circuit that supplies clock pulses to the shift register; means for blinking (m+n) blinking lamps depending on the output level of the shift register, and means for blinking (m+n) blinking lamps according to the output level of the shift register;
A lamp blinking device characterized in that a NAND output with an inverted output of the n-th bit is input to the shift register.