The half linear design is simply so you can get away with small thermal considerations, if the linear only needs to handle 1-5w in place of the full 75w per rail. as for the MOSFET to regulate with them means operating them in there linear region, just below the rated voltage for rson, however mosfets are not ideal for a supply as they have gate c
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apacitance delaying there response to transients unless driven quite hard As for op amp regulators being noisy its is partly correct was just throwing up the option any regulator with a set pin can function adequately pulling it below zero with some pissy little milliamp rated winding is all thats required, and allows an output voltage down to zero, with how much voltage just being the net offset voltage of the regulator and the pass element personally prefer to not have a piece of metal close to or exceeding 100 degrees in my lab, but if you wish to go linear then by all means sounds like you have the pieces to do it. As a secondary throught if you went with full linear how would you isolate you few thousand uF capacitors from boiling eevblogfan, here is a couple of suggestions on how to use the LT3080 to drive a 300+ W power stage. Q2 is a (low saturation voltage) current amplifier that drives two (or more) forced air cooled 150W (or more) power transistors. Of course, to fully utilise the LT3080 capabilities you might need faster power transistors than the 2N3772/2N3055 shown at the drafts. Additionally, if your LT3080 drives a power stage instead of the load directly, R8 shuts the power stage off, providing the first milliamperes to the load by the LT3080 itself and after that the power stage takes over; R9 ensures that the LT3080 will never provide more than 40mA, keeping it always cool on the PCB -no need to mount it...
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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