KR830001228Y1 - Operating time free adjustment electronic clock timer - Google Patents

Abstract

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Description

Operating time free adjustment electronic clock timer

The accompanying drawings are circuit diagrams of the present invention.

The present invention relates to an auto-on-a-time electronic clock timer that can freely adjust (set) a desired time length from any desired start of the operation of various home appliances and various electric circuits. And various industrial timers.

Conventional digital electronic clock timers attached to electronic products have a fixed operating time (Alarm output) length of 59 minutes or continue to turn unless the user can adjust the turnup time arbitrarily. Many inconveniences such as waste was improved by the present invention.

The design consists of two conventional LED display electronic clocks, one flip-flop and switching transistor, output relay and time adjustment button switches as shown in the schematic diagram of the attached drawing. It is for setting and memorizing the start to turn ON the output relay 1 and the clock IC is for setting the turn on time.

For example, the present invention configured as described above will be described in detail with reference to a switching operation of relay 6 by the timer, which is 4:30 am at an arbitrary time.

After powering on this timer, the user resets the flip flop 5 by turning the output off from A02 to H (igh) with H2 button of IC # 4 to turn the timer output on. Continue advancing time until LED diode is off.

Next, turn on IC No.2 by pressing the S1 button for time setting and pressing H1 (hour) or M1 (minute) for time setting so that the time displayed on LED display 1 is 5 am and open S1. Then set the current time of LED 1 by H1 or M1.

Turn-around time is set to 5:30 am by the turn-on time setting method by S2, H2 and M2 of IC No.4, and the current time of LED No.3 is synchronized by H2 and M2 according to the indication time of LED No.1. After setting, open the S3 output common terminal of LED 3 to save power.

After 5 am turn-on time, A01 of IC2 goes to H state with respect to ground, 5 flipflops are set, and Q goes to L state and outputs 6 times through switching transistors Q1 and Q2. By operating the relay, power is supplied to an electrical appliance or circuit connected to the C1 outlet.

When the turn-around time becomes 5:30 AM again, A02 of IC No. 4 goes into H state and resets 5 flip flops so that Q of 5 goes into H state and output relay No. 6 recovers. The power supply to the connected electric appliance is interrupted.

In this way, the present invention is that if the electronic clock timer output is recovered only after 59 minutes, the output relay is restored when only the turn-off signal is received from IC No. 4 at any time, even within 59 minutes. Can be stored in 5 flip flops for more than 59 minutes. Therefore, the timer operation duration time can be freely adjusted from 1 minute to 23 hours at any time.

By using such a timer, it is possible to automatically record broadcasts using radios and recorders that are currently distributed nationwide, so that people who have difficulty in listening to various lectures can easily listen to and watch desired broadcasts regardless of time. It is easy to apply to various electric appliances and automatic control of electric circuits, and to attach an electronic clock timer to each electronic product. This timer can be used with high compatibility with any electrical product. Can be used as an electronic clock.

For automatic recording of radio broadcasts using this timer, dial the radio to the desired broadcast, connect the power plug to the C1 outlet of the timer with the power switch turned on and the recorder insert the tape and press play and record button. Connect the plug to the C1 outlet of the timer while the power switch is turned on, and then set the start time of the desired listening broadcast to the turn-on time of the timer and the end time of the broadcast to the turn-up time. do.

The present invention is relatively simple in configuration and can be manufactured inexpensively by mass production technology of the IC. Since the inconvenience of rewinding or repeatedly setting the mainspring is eliminated every time it is used in the conventional mechanical rotary timer, the time set once is the same time every day. It is a useful timer that can maintain high accuracy by automatically repeating and operating by an electronic clock.

Claims (1)

A timer for freely adjusting operating time, characterized by using a conventional two electronic clock ICs and applying its output to one flip flop, as shown in the figure, to set the turn-around time freely.