power supply circuit

NE556 automatic monitoring circuit of starting battery of dynamo

Published:2011/6/20 6:22:00 Author:chopper | Keyword: automatic monitoring, starting battery, dynamo

This is a automatic monitoring circuit of starting battery of dynamo,and it can detect the voltage state of storage battery continuously.When the battery discharges to the prescriptive lowest voltage,it will stop charging automatically;when the battery needs a charger but the charge power supply is not available,it can distinguish automatically and send out a acoustic signal to remind operating staff of power supply.In addition,it has a function of automatic-manually operation convertion,which makes it charge the battery at any time manually.   (View)

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The power supply fault monitoring circuit

Published:2011/6/30 21:05:00 Author:qqtang | Keyword: power supply, fault monitoring

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The circuit of impeding discharge of the capacitor

Published:2011/6/30 21:42:00 Author:qqtang | Keyword: discharge, capacitor

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The positive and passive output voltage tracked integrated regulated power supply circuit

Published:2011/6/30 22:15:00 Author:qqtang | Keyword: output voltage, regulated power supply

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The 15V regulated power supply circuit of SCR

Published:2011/6/30 22:11:00 Author:qqtang | Keyword: regulated power supply

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The 5V-+12V and -15V DC converter circuit

Published:2011/6/30 20:38:00 Author:qqtang | Keyword: DC converter

Figure: The 5V-+12V and -15V DC converter circuit   (View)

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The auto sequence connecting power supply control ciruit

Published:2011/6/30 20:47:00 Author:qqtang | Keyword: sequence, power supply control

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The Guangzhou Honda charging system circuit

Published:2011/6/30 20:55:00 Author:qqtang | Keyword: Guangzhou Honda, charging system

The Guangzhou Honda charging system circuit is shown in the figure.   (View)

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The Volkswagon charging system circuit

Published:2011/6/30 20:50:00 Author:qqtang | Keyword: Volkswagon, charging system

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The randomly set standby power supply voltage circuit

Published:2011/6/30 21:03:00 Author:qqtang | Keyword: standby power supply, voltage circuit

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Matsushita shaver charge circuit

Published:2011/6/14 3:17:00 Author:chopper | Keyword: Matsushita, shaver, charge

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STR-S6709 switch power supply thick film integrated circuit

Published:2011/6/15 8:05:00 Author:chopper | Keyword: switch power supply, thick film, integrated circuit

STRS6709 is a PWN control integrated circuit of current mode,and it is applie   (View)

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printed circuit board with enough creepage distance in the high voltage circuit

Published:2011/6/15 5:13:00 Author:chopper | Keyword: printed circuit board, creepage distance, high voltage circuit

In the power supply circuit,there should be enough interval among lines for security.The interval is usually called creepage distance. A side circuit often should be added 220V voltage or above,therefore we needa creepage distance that can stand the high voltage.The usual creepage distance is 5OOV/1mm.But the distance is not enough if it is used in the high humidity environment.In this case, non-corroding resin should be printed on the surface of printed plate and so does the dampproof coating.Additionally,high voltage circuit can increase creepage distance by slotting the lines,just as follows.   (View)

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PHILIPS 170B4 LCD Monitor Switch Power Supply Circuit

Published:2011/6/30 4:31:00 Author:Joyce | Keyword: PHILIPS 170B4 , LCD Monitor , Switch , Power Supply

PHILIPS 170 B4 LCD monitor switching power supply takes 7101 (TEA1533) as its core component. The circuit is as shown in the figure.   (View)

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24V Short-circuit Prevention and Regulated Power Supply Circuit

Published:2011/6/30 4:26:00 Author:Joyce | Keyword: 24V , Short-circuit, Prevention , Regulated , Power Supply

Short-circuit prevention and regulated rower supply circuit is shown as follows:   (View)

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0～30V﹑2A-based Constant Current and Regulated Power Supply Circuit

Published:2011/6/30 4:39:00 Author:Joyce | Keyword: 0～30V﹑2A-based , Constant Current , Regulated Power Supply

0～30V﹑2A-based constant current and regulated power supply circuit is shown in the following figure.   (View)

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A Durable 3～120V Regulated Power Supply Circuit

Published:2011/6/30 4:41:00 Author:Joyce | Keyword: Durable , 3～120V , Regulated Power Supply

A durable 3～120V regulated power supply circuit is as shown in the figure.   (View)

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70V Regulated Power Supply Based Circuit

Published:2011/6/30 4:45:00 Author:Joyce | Keyword: 70V , Regulated Power Supply , Based

70V regulated power supply based circuit is as shown in the figure.   (View)

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Ordinary 1000 V High Voltage Output DC Regulated Power Supply Circuit

Published:2011/6/30 4:35:00 Author:Joyce | Keyword: Ordinary , 1000 V , High Voltage, Output , DC , Regulated Power Supply

Ordinary 1000 V high voltage output DC regulated power supply circuit is as shown in the figure.   (View)

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IR4010 internal schematic box circuit

Published:2011/6/30 11:23:00 Author:John | Keyword: schematic box

The figure shows the IR4010 internal schematic box circuit, which indicates the internal circuit components of IR4010 device. It should be noted that it provides the VCC (voltage input response) with over or under voltage protection. When the VCC is equal to16 V, the control circuit starts to work with 6 V lag lock function. It refers that the circuit does not work with under-voltage protection when the VCC is less than (including) 10V. When the VCC is larger than 22V, the circuit does not work the either but with over-voltage protection. Comparator COMP1 controls the on-and off of the MOSFET. When the VTH (1) is larger than (including).7 V, turn off the MOSFET. Comparator COMP2 controls the connection of the MOSFET. When VTH (2) is less than (including) 1.45 V, the MOSFET is connected.   (View)

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