TC649 motor drive circuit with overheat protection
Posted on Mar 28, 2007
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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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The gain control element is a Light Dependent Resistor (LDR). These are blessed with a few very...
This is an add-on Over Voltage Circuit for the LM317 Regulator Circuit submitted by Matthew...
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Intermittent failures in electronic systems are some of most difficult to diagnose. This device...
Transistor Ql of the headset amplifier circuit amplifies the 30 mV signal, that would have gone...
This VHF VCO circuit is suitable for 30 to 200 MHz. Q1 can be replaced by a 2N3563 for operation...
This circuit dials a stored DTMF tone sequence from EPROM when a control line is taken to 0 V....
This device was created in a hurry for the USC Rocket Propulsion Lab, the student-run...
The cost of electricity around the world has steadily been rising for over the past 40 years....
I want to know if I can connect 2 dimmers in series to control more preciselly the light of a...
The Saver V5. 0 runs simple clock emulation program, turns a night light on and off with preset...
The. 01uf monolithic capacitors will be marked `103 K` and the 15pf monolithic capacitors are...
100kHz-30MHz active antenna with small size, good performance, making simple, low cost and so on,...
Circuit shown in Figure 3-136. The line adds a limit switch SQ, when the motor is running with a...
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