8/12/2019 IC4060 Schematic

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Free circuit dot com presents the timer circuit with IC 4060 as this circuit is simple to make the project or devices.

This timer circuit can set time at 1 minute to 2 hours.

First information, technically, the IC 4060 is a 14-stage ripple carries binary counter, the oscillator and divider of a

monolithic integrated circuit, contained in a 16-pin dual-in-line housing with ceramic or plastic. A phase of the integratedoscillator is a key feature of the integrated circuit, which keeps the number of components in the integrated circuit to a

minimum at the design frequency generators or oscillators. The phase of the internal oscillator operation easily through a

network of resistors and a capacitor connected to the pins #8, #9 and #10.

1 Minute to 2 Hour Timer Circuit Diagram

The timer time is determined by P1 and C1, through the following formula (seconds): t = 2.3 * (P1 + 18k) * C1 * 2 ^ 13.

The basic structure of the IC can be understood from the following:

According to the rules of standard CMOS ICs, all entries are first captured by assigning them to specific business logic or

simply a voltage (not exceeding the level of supply voltage). For integrated circuit pin # 9, 10, 11 and 12 are active inputs .

Resistance to pin No. 11 can be considered a type of terminal or the reference resistance value that ideally should be 10

times more than the resistor connected to the pin 10 (the combined value of the resistor and pot fixed series).

The capacitor connected to pin # 9 is, in general, non-polar type.

No Pin 12 is the reset input of the IC on the ground must be connected so that the IC function (swing). This entry positive

stop immediately IC to oscillate and return it to its original state. Set the pen is connected to the ground of the integrated

circuit for counting (oscillate) for some time (for example, 1 minute), the connecting pin to the positive terminal and to

immediately stop the count reset to zero.

8/12/2019 IC4060 Schematic

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The rest of the pin-out, the outputs of the IC that generate oscillations specific speeds. Costs are expressed in multiples of

two for the entire chain pinouts as shown in the diagram. Pin # 3 indicates the lowest frequency, the highest or pulses at

time intervals while the spindle 7 with the highest frequency or pulses having the lowest time intervals.

0.3 Second to 10 Hours Timer Relay with 4541 IC

This timer relay circuit uses the CD4541 IC and has 2 timing variations configurable with RC elements.The specifications of this timer are:

modes of operation: astable/monostable

the output has a 6A/250V relay with NC/NO contacts

LED signals exiting the timing state

manual programming done with a DIP-switch 12V voltage operation

Schematic of the Timer Relay Circuit

working principle of the timer

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Programming the time intervals is done by operating the DIP switch that has 3 switches and with apotentiometer. Depending on the position of SW1 1 and 2 contacts, the timer can be configurated forthe 4 time ranges, as shown in tables:

0.3 sec to 10 minutes

SW1time interval1 2

O ON 0.3s … 3s

ON O 1s … 10s

ON ON 10s … 1.5min

O O 1min … 10min

15 sec to 10 hours

SW1time interval

1 2

O ON 15s … 3min

ON O 1min … 10min

ON ON 10min … 1.5h O O 1h … 10h

Use the potentiometer for setting the t iming period within these intervals.

For the 0.3 second to 10 minutes timer version the potentiometer is 100kΩ, R1 = 9.1kΩ, R2 = 910kΩ,R3 = 220kkΩ and C1 = 100µF.

For the 15 seconds to 10 hours timer version the potentiometer is 1MΩ, R1 = 51kΩ, R2 = 1.2MΩ, R3= 1.2MΩ and C1 = 1µF.

The operating mode is selected with the third contact of SW1:

ON position = monostable

O position = astable

In order to start the timining you have 2 possibilities: you either connect the START point to groundGND and in this case the timer starts when you connect it to the voltage supply or you can place aswitch to start it.

All the resistors are 0.25W and C1 must have a good stability over time