Eggs warming control circuit

Posted on Mar 28, 2007

Circuit is shown. (1) DC power circuit power switch S3, 220v AC voltage by T Buck, UR rectifier, C3 and C4 filter, generating + 9V voltage, supply Kl drive control circuit, a b

Click here to download the full size of the above Circuit.

uffer amplifier circuit and automatic over eggs. + 9V voltage also by RJ. Limiting blood pressure, and after filtering Cz vs regulator for temperature detection control circuit provides + 5V operating voltage. (z) circuit automatically turn the eggs automatically turn the eggs circuit by the resistor R.. ~ R. Potentiometer RP6, capacitance G, 6, when the base integrated circuit IC2, transistor VT3, diode VD2, relay K2, limit switches S1, S4 and trigger switch DC motor M2 components. Wherein IC2 and outer circumference RC components astable circuit fVT3 and R1l, RI., VD2, K2 and Sl composition M2 control circuit. + (3) provided VT1 temperature as a temperature sensor for detecting the temperature inside the incubator, its emitter (b, e between poles) with the voltage drop increasing temperature (temperature coefficient of - 2mV/). RP4 used to set the temperature control. Adjustment RP1 and RP2 of resistance, can change VT1 emitter voltage varies with temperature slope. (4) during operation in low ambient temperature incubation tank set RP4 dry when the temperature control, the amplifier Nl and N3 output high, so that VT2 saturated conduction, Kl pull power, and its normally open contact connected, fan motor Ml and the heater EH power work. Hatch inside when the ambient temperature exceeds the set temperature control amplifier Nl and N3 output low level, so that VT2 end. Kl release, the normally open contact is disconnected, and the heater fan motor Ml EH stop working. This process again and again, so that hatch inside temperature constant set temperature. Adjusting section RP3 and RP5 resistance, adjustable display accuracy of the temperature. In the instant power-on, since the voltage across the G mutation can not, IC2s feet and feet low, feet high output, VT3 cut stop, K2 is released, M2 does not work. Followed by G R1T, RP6 and Ru charged and the potential foot 1C2 feet and gradually rise. When the voltage across c7 charge to 6V above (approximately 2h), the inner circuit IC2 flip, pin goes low, so VT3 conduction. K2 through electric pull its normally open contact connected, so that M2 is energized to rotate through the reduction of the discharge device and pull sectional hatching eggs hatch plate to tilt in one direction, turn the eggs had completed work. Adjustment RP6 resistance, can change the automatic Ao egg time. j trigger mechanism when hatching plate tilted to an angle (about 70.) When installed on deceleration traction sheave makes Sl normally open contact connected to the normally closed contacts to open, so that the rate of the M2 supply polarity change, while S4 is turned on at the moment, so 1C2 feet inside the discharge power circuit work for, G rapid discharge, when G is less than the voltage across the 3V, IC2 the pin goes high, so VT3 deadline, K2 release, the normally open contact head off, so that M2 is stopped. Then G passed Ris, RP6 and Ris slow charging, when the voltage across the charge to G above 6V, IC2 inner circuit and flip, pin output low, the VT3 conduction, K2 pull power, and its normally open contact head is turned, so that M2 is energized to rotate by means of the discharge reduction and traction hatching eggs hatch plate in the opposite direction of tilt, turn the eggs to complete the action. When hatching plate tilted to a certain angle, the trigger mechanism is mounted on the traction sheave deceleration also allows Sl normally open contacts disconnect normally closed contact then on, so that the rate of the M2 supply polarity change, but at the same time silent turned about to be triggered so that IC2s output feet inside the discharge circuit, G rapid discharge when the voltage across the S7 lower than 3V, IC2 the pin goes high, so VT3 deadline, K2 release, which normally open contact breaking open, so that M2 and stops.

Leave Comment

characters left:

New Circuits

Zero consumption Anti-theft High power Code Switch for E-Bike Batteries

This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
Ultrasonic distance finder circuit

The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Simple Metal detector circuit with CD4030

Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Fully automatic watering circuit for flower pots

Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
Simple deep searching metal detector circuit

The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
Sub-Harmonic Bass Converter for Electric Guitars

The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
Echo Depth Sounding Sonar for Boats

In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
100W HiFi Audio Amplifier Circuit

This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
Plant-Pot Water Level Indicator Circuit

A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....

Create NOW your QR MENU for your Restaurant / Hotel / Bar / Caffe,

Comprehensive ordering/paying features. fully personalized to suit your Business.

Update Anytime! Easy and Simple!

Popular Circuits

Doorphone Intercom schematic

In this doorphone circuit,an 8 ohm speaker is used both as a microphone and also an output...

Digital Calender Circuit

Here is calendar digital circuit. this circuit using Microcontroller is an advanced digital...

Simple digital thermometer with AVR

This is a very simple digital thermometer with an Atmel AVR microprocessor, measuring the...

wire tracer circuit

The output frequency alternates between about 2100 Hz and 2200 Hz. This is a very distinctive...

Electric Guitar Preamplifier

Here is the circuit diagram of a guitar preamplifier that would accept any standard guitar...

Magnetic Levitation + Wireless Power Transfer = Floating Light Bulb

18-year-old electrical engineer student, Chris Rieger, has been working on his levitating light...

Wien oscillator

Build a sine wave generator. I use this schematic:. The op-amp I have used is the TL082 and the...

circuit shows 8x overunity

This circuit has an advantage in that almost all of the energy in the collapsing magnetic field...

NE566 frequency modulator

A frequency modulator configured NE566 integrated voltage-controlled oscillator shown in FIG....

Light control principle circuit rooster crows

Circuit principle is shown in FIG apparatus. When the night light irradiation on the...

Monostable circuit diagram of a light control

Combined monostable multivibrator 555 and a pair of light control and light control comparator...