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Index 242

STR41090 power supply

Published:2011/4/22 4:49:00 Author:May | Keyword: power supply

STR41090 power supply
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STR6020 power supply

Published:2011/4/22 4:51:00 Author:May | Keyword: power supply

STR6020 power supply
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90KHz-1KW switching power supply circuit

Published:2011/4/22 6:07:00 Author:May | Keyword: 90KHz-1KW, switching power supply

90KHz-1KW switching power supply circuit
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Intelligent lead-acid battery charger

Published:2011/4/22 6:40:00 Author:May | Keyword: Intelligent, lead-acid battery, charger

Intelligent lead-acid battery charger

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CWl840 driving two transistors single-ended forward transformation type switching regulator circuit

Published:2011/4/22 6:03:00 Author:May | Keyword: two transistors, single-ended, forward transformation type, switching regulator

CWl840 driving two transistors single-ended forward transformation type switching regulator circuit
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Color display switching power supply UC3842 circuit diagram

Published:2011/4/25 5:10:00 Author:May | Keyword: Color display, switching power supply

Color display switching power supply UC3842 circuit diagram
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Fast Ni-MH battery charger circuit diagram

Published:2011/4/25 2:15:00 Author:May | Keyword: Fast, Ni-MH battery charger

Fast Ni-MH battery charger circuit diagram
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Lithium battery charger circuit

Published:2011/4/25 2:17:00 Author:May | Keyword: Lithium battery charger

Lithium battery charger circuit
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Optical control switch in series circuit

Published:2011/4/24 6:11:00 Author:Nicole | Keyword: switch in series

Optical control switch in series circuit
Emitted by xenon flashtube, the light is transoprted to phototransistor MRD300 by optical fiber, after amplified, the photosensitive current triggers to a series of SCR components, then 6000V high voltage is added to load RL. This photoelectric trigger mode can avoid inductance delay of the general trigger connection. The SCR rectification component should have the same rise time, to prevent the slowest conductive components from triggering the circuit. (View)

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Photoelectric automatic acid feeding old tune device circuit

Published:2011/4/22 20:19:00 Author:Nicole | Keyword: acid feeding, old tune

Photoelectric automatic acid feeding old tune device circuit
Defibrator is used to produce fiberboard, it can heat the wood chipboard and then grind into fiber pulp, the block falls from storage hopper to defibrator feed inlet channel, this device is fixed in the port. When the block is entering the feed inlet, this device will automatically control the storage hopper vibrator if the piling height of block is lower than a certain limit, to make the storage hopper fast blanking. If the block is higher than a height, it will close the storage hopper vibrator, to achieve the purpose of automatical adjustment. (View)

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Opto-electrical alarm circuit

Published:2011/4/24 5:20:00 Author:Nicole | Keyword: opto-electrical alarm circuit

Opto-electrical alarm circuit
When the light beam between indicator light I1 and phototube PC1 is cut off, it will start alarm circuit, to produce a special scan single audio singal, this singal is sent to a simple amplifier with loudspeaker to amplify, then it will produce a alarm singal. After the I1 light is cut off, PC1 resistance turns large, SCR1 turns on, the nagative terminal of power supply B1 is connected to the later SCR1 circuit. Q1, Q2 are two unijunction transistors, it is used as oscillation component, Q1's oscillation frequency is decided by R3, C1; Q3's oscillation frequency is decided by R7, C3; Q2 is used to amplify. (View)

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Trickle charge simple schematic diagram

Published:2011/4/25 2:04:00 Author:Nicole | Keyword: Trickle charge

Trickle charge simple schematic diagram
The battery is in parallel with load, and the battery is also connected to power supply. Under normal circumstances, the DC power supply is as the power supply of load, it charges to battery with trickle mode, only the load changes greatly, and the DC power supply terminal voltage is lower than battery terminal voltage or the DC power supply stop supplying, the battery will discharge to load. Under this method, the charge current is decided by the used module. It is usually used in the occasions where the emergency power supply, standby power supply or electronic watch can not be cut off. (View)

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5V regulated power supply composed of MC1460G integrated regulator

Published:2011/4/25 3:17:00 Author:Nicole | Keyword: 5V regulated power supply, integrated regulator

5V regulated power supply composed of MC1460G integrated regulator
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MAX846A most typical application circuit (charge circuit)

Published:2011/4/25 3:15:00 Author:Nicole

MAX846A most typical application circuit (charge circuit)
MAX846A charges to lithium ion battery as an undependent limited voltage current source. (View)