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Index 1530

Stabilized Voltage Supply Adding Additional Over-Voltage Protection Circuit

Published:2011/7/17 8:10:00 Author:Robert | Keyword: Stabilized Voltage Supply, Over-Voltage, Protection

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The method to change the output voltage of the ringing switch power supply

Published:2011/7/15 22:22:00 Author:Christina | Keyword: method, output voltage, ringing switch, power supply

The method to change the output voltage of the ringing switch power supply
In the simple ringing current-limit type switching voltage stabilization circuit, the output voltage Vo is proportional to the negative bias Uc. If you want to change the output voltage, you need to change the Uc, as shown in the figure. The collector electrode of the transistor VT2 is connected with the negative terminal of the capacitor C2. Once the Uc2 rises, the current which flows through the zener diode VD2 and the transistor VT2 will increase to conduct VT2. Because the collector electrode current of VT2 shortens the conduction time of the switching transistor VT1, so we can cut off the circuit in advance to reduce the output voltage Vo. (View)

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Over-Voltage Protection Circuit By Using The Principle Of Over-Heat Generated By Over-Voltage

Published:2011/7/17 8:04:00 Author:Robert | Keyword: Over-Voltage, Protection, Principle, Over-Heat

The pictrue shows the over-voltage protection circuit by using the principle of over-heat generated by over-voltage. (View)

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Over-Voltage Protection Circuit Composed Of Fuse And Thyristor

Published:2011/7/17 9:42:00 Author:Robert | Keyword: Over-Voltage, Protection, Fuse, Thyristor

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Over-Voltage Protection Circuit Composed Of Transistors

Published:2011/7/16 9:47:00 Author:Robert | Keyword: Over-Voltage, Protection, Transistor

The picture shows the over-voltage protection circuit composed of transistors. (View)

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Over-Voltage Protection Circuit Composed Of Transistor And Relay (2)

Published:2011/7/16 9:55:00 Author:Robert | Keyword: Over-Voltage, Protection, Transistor, Relay

The picture shows the over-voltage protection circuit composed of transistor and relay (2). (View)

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Over-Voltage Protection Circuit Composed Of Transistor And Relay (1)

Published:2011/7/16 9:52:00 Author:Robert | Keyword: Over-Voltage, Protection, Transistor, Relay

The picture shows the over-voltage protection circuit composed of transistor and relay (1). (View)

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Starting Circuit By Using FET

Published:2011/7/17 9:46:00 Author:Robert | Keyword: Starting, FET

The picture shows the starting circuit by using FET. (View)

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Battery Protection Circuit

Published:2011/7/16 10:03:00 Author:Robert | Keyword: Battery, Protection

The picture shows the battery protection circuit. (View)

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Practical Under-Voltage And Over-Voltage Protection Circuit

Published:2011/7/17 8:01:00 Author:Robert | Keyword: Practical, Under-Voltage, Over-Voltage, Protection

The picture shows the practical under-voltage and over-voltage protection circuit. (View)

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Power Over-Voltage Protection Circuit By Using μPC3423

Published:2011/7/17 8:18:00 Author:Robert | Keyword: Power, Over-Voltage, Protection

The picture shows the power over-voltage protection circuit by using μPC3423. (View)

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I/O Interface And Static Switch Driving Circuit

Published:2011/7/17 8:13:00 Author:Robert | Keyword: I/O, Interface, Static, Switch, Driving

The picture shows the I/O interface and static switch driving circuit. (View)

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Electronic Switch And Driving Circuit

Published:2011/7/17 8:14:00 Author:Robert | Keyword: Electronic, Switch, Driving

The picture shows the electronic switch and driving circuit. (View)

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Dual polarity voltage stabilizer with the three-port voltage stabilizer

Published:2011/7/16 5:52:00 Author:Christina | Keyword: Dual polarity, voltage stabilizer, three-port, voltage stabilizer

Dual polarity voltage stabilizer with the three-port voltage stabilizer
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Sensor Structure Circuit

Published:2011/7/17 9:48:00 Author:Robert | Keyword: Sensor, Structure

The picture shows the sensor structure circuit. (View)

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The inverter circuit 14

Published:2011/7/16 4:26:00 Author:Christina | Keyword: inverter

The inverter circuit 14

Data: base coil 8-10 turns (two groups), Primary coil 18-24 turns (two groups), Subprime coil600-800 turns, the high power relay. The 39 and 2.7ohms resistabce is 2-4W; the 6uF capacitance's voltage is 1000V. (View)