Power Control Circuits
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It is common that sometimes we need to power some devices σuccessively one after the other. This function forces us to handle a large number of switches, which are located where the access is difficult, especially in the case of informational devices and.... -
Controllable gain amplifier is an automatic gain control circuit of the execution unit, the main method of controlling the gain of the amplifier in two ways: One way is through.. -
DW15-200-630A breaker solenoid DC solenoid structure, short-time working. (1) DK-1 control box using AC power switch on the electromagnet circuit circuit is shown in Figure 6-7.. -
Controlled pulse signal generating circuit FIG controllable pulse signal generating circuit, when the input terminal O start (start) pulse signal (input high), electric road be.. -
DC motor-generator speed closed loop control utilizing UC3637 internal error differential amplifier EA, after tachometer generator speed voltage signal is filtered with the spe.. -
Denote cam controller SA 1 contact closure case. M1 is 1. 35kW driving motor, Mz to 4kW pump motor. .. -
Factories and enterprises lOkV and below the circuit breaker commonly used CD10 (formerly CD2) type electromagnetic actuator. This type of mechanism itself has a mechanical ant.. -
FIG load test is a control circuit. This external load circuit up to 10A, widely used in the drive test power, the power amplifier, LED solenoids and relays, and the carrying c.. -
FIG SD501E is J tie fan IC, which has the following characteristics a 7 5 ±progressive Timing: round strong, medium. Weak block touch speed; normal, natural wind and sleep wind.. -
FGDF-3 three-phase low-temperature iron plating power commutation control switch and electronic circuit KGDF-3 low-temperature iron plating power supply device having a single-.. -
Extended delta decompression starter, that is, when the motor starts its three -phase winding set to take part, eatY coupling, connected to another part of links, the entire ex.. -
Electric driving is an important equipment for the modernization of the plant material transport, the traditional control methods, mostly semi-manually operated automatic contr.. -
Dynamic noise reduction circuit and a DC volume, tone balance control circuit, which is applied to the input stage and the discharge line between the amplifier. See DC volume c.. -
Each motor with independent drive, but only one frequency for a given device, which uses the same RP potentiometer to achieve a multiple motors in parallel. .. -
Electronic Table (1) Introduction This schematic circuit having two alarm output by the timer by thyristor controlled. Can any on/off, and shut down after the power supply from.. -
Digital controller password as shown by the nine-digit password, and a total of 11 keys, including four pseudo-code keys, 7 keys have two valid keys for the overlay keys, the n.. -
Disinfection cabinet circuit principle is the use of infrared heating, in a closed cabinet to create a high-temperature environment, tableware disinfection. Circuit shown in FI.. -
Figure 1-87 is a good loudness volume control circuit, it uses an ordinary potentiometer, used element pieces are scarce, but the effect is quite remarkable. The electric road .. -
Figure 1-89 is an example of loudness control circuit. Potentiometer from the ground 30% of the total resistance at the tap. When the slide arm when screwed to the tap position.. -
Figure 3173 is a mechanical braking, dynamic braking, reverse braking function wound rotor induction motor speed can be positive and negative control circuit. Figure, KI, to st.. -
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.... -
The most elementary application is a half-wave control circuit. The thyristor is acting both as a power control device and as a rectifier, providing variable power to the load !luring the positive half cycle and no power to the load during the negative.... -
The purpose of this circuit is to control the water temperature in a hot-water heating system. What it does is to lower the boiler temperature as the outside air temperature increases. The op amp is used as a comparator. Thermistor TH2 and R2 form a voltage.... -
The sensor is a standard TO-5 or TO-46 package. For surface or air temperature sensing. Small clip-on heat sinks can be used. A simple probe can be made using heat-shrink tubing and RTV silicon rubber. Three-leads-plus-shield cable is a good choice for wire.... -
Temperature control is achieved using the REF-02 +5 V Reference/Thermometer and a CMP-02 Precision Low Input Current Comparator. The CMP-02 turns on a heating element driver (Ql) whenever the present temperature drops below a setpoint temperature determined.... -
This converter can accommodate wide inputvoltage swings, such as the 8 to 15-V swing typical of a 12-V sealed lead/acid battery. The low battery output indicates when input voltage drops below 8V. .. -
The SCR is wired across the trigger circuit of the flash gun. Normally, the SCR is off, so the flash gun is able to cha.. -
This solid-state switch senses and interrupts an overcurrent condition within 2 /is. II allows the circuit to float. IC.. -
This circuit allows a 4-to 20-mA current loop to control an isolated SCR drive. IC1A and are one-shots. Q2 detect.. -
In both circuits, the SCR (and thereby the lamp) can be latched on by momentarily closing SI, thereby fe.. -
This switch uses four CD4013 BE dual flip-flops, an inverter, and an optoisolator to drive a triac. The circuit can switch 25-A ac load current. A standard 4x3 telephone keyboard is used to enter a 6-digit code. In case of a wrong code, a signal is.... -
This circuit senses the video from the VCR. When the VCR is turned on, video signal is amplified by U3A and to drive Ql, activating Kl. In this manner, it is not necessary to turn on and off two video devices every time. In many cases, this avoids the use....
New Circuits
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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....
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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.... -
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.... -
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.... -
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.... -
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,.... -
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.... -
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.... -
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.....
Popular Circuits
Use a pair of Maxim"s 5V-powered MAX231 RS-232C transmitters as drivers to obtain a 2-color LED....
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This circuit lets you control any line powered electrical device (a lamp, television, fan, etc. )...
When the detect subroutine is called, it first waits for a start bit. The length of the low part...
The purpose of this application note is to present an example circuit, illustrating how to...
The first BC109C transistor (left hand side) is acting as a buffer. It provides the circuit with...
Connect a 12 volt 20 watt lamp and 12 volt battery to the circuit (observe battery polarity)....
The power that is used for realignment is a loss as far as the rest of the circuit is concerned....