Power Control Circuits
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Circle i {JA, C two-phase grid connection line. a. c technology turbine shed two lines. A, a voltage between Ri by Buck, convex - Diu chain flow. R., R3. wl dividing aftercrop .. -
Circuit from the main circuit, trigger circuit, speed negative feedback, negative feedback differential voltage, current cut-off circuit, loss of field protection and other com.. -
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.. -
Circuit shown in FIG. Circuit by the battery, the controller, with electrical and charging parts. Wherein: Zener diode DWl, resistors R1, R2 composition undervoltage detection .. -
Circuit shown in Figure 11-14. It uses a one-way thyristor, is poured into the liquid level automatic control circuits. Electrodes for detecting sensing element for water or ot.. -
Circuit shown in Figure 3-148. The circuit eliminates the need for step-down transformer, using thyristor for brake control, for small capacity asynchronous motor braking amoun.. -
Circuit shown in Figure 3-168, which uses the controller SA grading speed and reversing control; reverse brake connected to the rotor circuit overcurrent relay KI to control; c.. -
Circuit shown in Figure 3-22. Figure, KMi and SBi are forward contacts and forward buttons, KMz and SB2 are reverse contactors and reverse button, SB3 for the stop button. .. -
Circuit shown in Figure 3-76. It uses two time relay to achieve control. KTi and KTz control the motor running and downtime. .. -
Circuit shown in Figure 3-78. The time line also use two relays to achieve automatic control, but the line structure than simple. The line can be achieved intermittently motor .. -
Circuit shown in Figure 3-79. It consists of two delay circuits, respectively. RPi adjustment potentiometer and RP2, respectively, can be changed and stop the motor running the.. -
Circuit shown in Figure 3-80. Which controls part of the transistor multivibrator. Multivibrator is a strong positive and negative feed-forward amplifier, its two branches are .. -
Circuit shown in Figure 3-81. The circuit uses a transistor delay circuit to achieve start-stop cycle control. You can take the hand moving and automatic manner. Circuit is pri.. -
Circuit shown in Figure 3-82. It uses 555 IC A motor to achieve automatic control of start and stop cycles. Adjust potentiometer RPi and RPz, respectively, to change the motor .. -
Circuit shown in Figure 3-83. The figure shows that only when the contactor KMi after pull (ie, after the motor Mi first start), KM2 to pull (ie Mz after start) .. -
Circuit shown in Figure 3-84. Be seen by the two electric motors can be started separately. But only when you press Host (Ml) of the stop button SBz (after contact KMi release).. -
Circuit work process is: When the momentary switch S between, since the voltage across the capacitor can not change suddenly, the Pi C zero voltage across the SCR vs no trigger.. -
Closing switch S, the power supply positive half cycle, the power by VD1, Rl, VD2 to charge the capacitor C, C at both ends of the electrical pressure gradually increased, but .. -
The circuit is analogous to a voltage or a current source but delivers fixed power levels that are independent of the load resistance. A feedback loop senses load power and automatically adjusts the output voltage to maintain the desired power level. The.... -
The control circuit in Figure 1 senses a given load and automatically soft-starts the load by synchronously adjusting the power to that load. You can also manually adjust the power delivered to the load by controlling the phase angle of the line voltage....
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This is adjustable elctronic fuse that can be used to protect power supplies from short circuits or can be also used to limit the current usage. It can be adjusted for currents from 100mA up to 4.3A... -
This circuit adds a power down function to analog I/O ports (for example, the AD7769 and AD7774). Moreover, the diodes ordinarily needed to protect the devices against power-supply missequencing can be eliminated Bringing the power down control high.... -
It is important to know that transistors Q1,Q2,Q3 must not work like an astable (tri-phase) multivibrator (you could verify it on scope (no square waves but NON LINEAR wave between XB, YB, ZB must be displayed on the scope)... -
There are a number of ways to obtain the low voltages required to run small projects from the wall power outlet. The simplest way is to buy a factory-built molded supply which is designed to plug directly into the wall outlet. Some such supplies have an.... -
This circuit controls resistive and inductive loads up to 2,500W. Its main functional device is an integrated phase control circuit - Siemens TLE3103. It contains its own power supply, a zero voltage crossing detector circuit and a logic driver. An.... -
The ELC presented here has some flexibility, thanks to being software-controlled, but also has its limitations: It's intended for microhydro systems that employ a single-phase synchronous alternator, working at 220-240V, 50Hz, in a power range up to 25.... -
The PIC16F870 keeps track of battery voltage as well as both charging and discharging currents. It also drives the 4 digit display, and switches the AC and load relays. The basic operation is as follows: While AC power is available, the battery voltage is.... -
I found some similar circuits but aren't good enough for me. Some circuits measure the water's resistance to determine the level. That is dangerous for drinking water (contamination) or explosive liquids because electricity is in contact with water. The.... -
Full short-circuit and overcurrent protection is given by this circuit suitable for workbench applications in technical schools and laboratories where there is a need to work directly with the mains. Additional features are a clearly visible red lamp.... -
With this circuit you will be able to monitor the quality of the mains. There are 4 distinct sections, each supervising a parameter pertinent to the quality of the supply line. The noise section consists of a 50Hz filter and a speaker where you will hear the.... -
Probably the easiest way of doing automatic switch off is with relay logic. In the diagram, the box marked RL1 is the coil, the 2 in the coil box tells you there are two sets of contacts somewhere on the circuit, operated by this coil. In this simple.... -
This moisture detector with pump controller is built around the special purpose LM1830 IC. The LM1830 is designed to detect moisture by passing an AC current through a set of probes. An internal comparator compares the resistance of the probes to an internal....
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.... -
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.....
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