Showing posts with label voltage. Show all posts
Showing posts with label voltage. Show all posts
Thursday, October 9, 2014
Switching power supply dual voltage 5v and 3 3v by LM2575 LM1117
Here is circuit Switching power supply dual voltage, output 5V 1A and 3.3V 1A.
Use IC LM2575 SIMPLE SWITCHER 1A Step-Down Voltage Regulator ,and IC LM1117 is 800mA Low-Dropout Linear Regulator. Volt suppy 9V – 60V
Detail more see to image circuit.
Wednesday, September 24, 2014
Simple Variable Voltage Current Power Supply Circuit Using a Single FET
- For many applications the requirements are not that stringent and a simple, discretely constructed regulator as described here will suffice.
- The current limiting components can then be left out.
- With values as shown, the output I voltage is 12V and the output current is limited to 0.5 A. For applications not requiring current limiting the circuit can supply up to 1 A.
- The relation between input voltage, load resistance and regulated output voltage is shown in table 1.
- This table can therefore be used to determine whether the regulation for a particular application is sufficient. The ’heart’ of the regulator, high power low-frequency transistor T1, l must be fitted onto an adequate heatsink. FET T3 operates as a current source with an output 3, maximum of 11 . . . 18 mA: this it limits the base current of T1, of course, but the alternative would have been a very low value resistor; ‘ or this would have resulted in large!
- The cost of high grade, regulated power supplies has dropped with the advent of modern lCs.
Thursday, September 18, 2014
Charger circuit equipped with a regulator circuit output voltage
The circuit charger is equipped with voltage output settings , so that we can regulate how much voltage to charge the battery. And the settings using the potentio making it easier for us managing voltage up to a mV. See charger circuit below :
Adjust the circuit by setting the 500 Ohm resistor while it is attached to a fully charged battery.
You can use the circuit to charge :
- Cells battery
- Wet Accu
- Dry Accu
- Nicad battery
- Solar battery
Sunday, September 14, 2014
SSM2044P Voltage Controlled Filter
At this circuit the SSM2044 IC is used, a 4 pole voltage controlled filter designed for electronic music applications. On-chip voltage control of resonance allows direct and easy interfacing with programmers and controllers. The IC features extended control range, low noise, and high control rejection. The filter can also be used as a low distortion sinewave oscillator.
Tuesday, September 9, 2014
Over voltage Protection for Logic Wiring diagram Schematic
Zener diode ZD1 senses the supply, and should the supply rise above 6 V, Ql will turn on. In turn, Q2 conducts clamping the rail. Subsequent events depend on the source supply. It will either shut down, go into current limit or blow its supply fuse. None of these will damage the TTL chips. The rating of Q2 depends on the source supply, and whether it will be required to operate continuously in the event of failure. Its current rating has to be in excess of the source supply.
Over voltage protection for logic Circuit Diagram
Friday, September 5, 2014
Inverter Voltage Wave Wiring diagram Schematic
This schema voltage inverter was designed using common electronic components, it produces a negative voltage from a positive. It is very simple, its operation is reasonable and can be used in different utilities in electronics where one has to inverts tensions of a wave.
Inverter Voltage Wave Circuit Diagram
Tuesday, August 26, 2014
The High Voltage Geiger Counter Supply Wiring diagram Schematic
This High Voltage Geiger Counter Supply Circuit Diagram will generate about 300 volts dc รข€”at a very low current, but enough for a GM tube. be careful with the output.
High Voltage Geiger Counter Supply Circuit Diagram
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High Voltage Geiger Counter Supply Circuit Diagram
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