24V regulated power supply circuit with current limiting protection

Published:2011/4/7 2:06:00 Author:Nicole | Keyword: 24V regulated power supply, current limiting protection

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0～15V regulated power supply circuit with current limiting protection

Published:2011/4/7 2:07:00 Author:Nicole | Keyword: 0～15V regulated power supply, current limiting protection

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High voltage frequency conversion power supply

Published:2011/4/7 4:18:00 Author:may | Keyword: High voltage, frequency conversion, power supply

The main circuit of high voltage frequency conversion power supply adopts alternate-direct-alternate voltage type circuit. Bridge type inverter circuit consists of high power full control type power electronic device IGBT. The control circuit uses pulse width (PWM) technology and SCM (80196KB) control technology. 1, IGBT drive circuit 2, control circuit block diagram:   (View)

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Practical soft-start circuit in switching power supply

Published:2011/4/7 2:22:00 Author:Nicole | Keyword: soft-start, switching power supply

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Fault prevention ways with two power series(using フ current protection circuit)

Published:2011/4/7 2:35:00 Author:Nicole | Keyword: fault prevention way, two power

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Lithium ion battery charging and system load power up schematic diagram

Published:2011/4/7 2:39:00 Author:Nicole | Keyword: lithium ion battery, charging, system load

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Lithium ion battery equivalent circuit

Published:2011/4/7 3:01:00 Author:Nicole | Keyword: lithium ion battery

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Lithium ion battery charge-discharge protection circuit

Published:2011/4/7 3:02:00 Author:Nicole | Keyword: Lithium ion battery, charge-discharge

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Temperature control typical circuit composed of MAX712/MAX713

Published:2011/4/7 3:07:00 Author:Nicole | Keyword: temperature control

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No precharge function typical application circuit composed of MAX1894/MAX1924

Published:2011/4/7 3:10:00 Author:Nicole | Keyword: precharge function

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Intermediate frequency power supply system structure drawing using intelligent power module

Published:2011/4/2 3:50:00 Author:may | Keyword: Intermediate frequency, power supply system, intelligent power module

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115V／400Hz voltage power supply circuit

Published:2011/4/7 5:21:00 Author:may | Keyword: 115V／400Hz, voltage power supply

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Separately excited switching power supply circuit diagram used single-junction transistor as pulse generator

Published:2011/3/27 22:07:00 Author:Nicole | Keyword: switching power supply, single-junction transistor, pulse generator

As shown: VD1 ~ VD4 and C1 is the rectifier filter circuit, turning the 220V AC mains voltage into 300V DC. Pulse generator consists of a single junction transistor VT1, resistors R3, R4, R5, potentiometer RP and capacitor C3, with the change of potentiometer's resistance, the pulse frequency is changed. C4 for coupling capacitor of the output pulse. Rl and R2 make 300V DC divider to a single-junction transistor VTl, and provide 20 ~ 30V operating voltage. VT2 is the inverting amplifier tube, inverted and amplified the output positive pulse of the pulse generator, transport a negative pulse to switch VT4, so that it is ended when VT1 output positive pulse. VT3, R7, C5 form the protection circuit of switch VT4. When connected to power supply, and the pulse generator has not worked, VT4 is on, the pressure drop on R7 increases, make the base bias of VT3 increase, cause the collector current Ic3 increased, the pressure drop Uce3 reduced, base potential of VT4 tube decreased, limiting the collector current of VT4 Ic4, so that it is remained in the security value.   (View)

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15V adjustable power supply composed of μA723

Published:2011/3/29 20:34:00 Author:may

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1.25～37V、1.5A adjustable regulated power supply composed of LM117

Published:2011/4/6 3:08:00 Author:Nicole | Keyword: regulated power supply

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LM117/317 typical application adjustable regulated power supply circuit

Published:2011/4/6 3:10:00 Author:Nicole | Keyword: regulated power supply, typical application

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Charger circuit composed of LTC4060

Published:2011/4/6 3:03:00 Author:Nicole | Keyword: charger

LTC4060 is used in 1 ~ 4 battery, 0.4～2A current self-determination linear NiMH and NiCd battery charger, it is produced by LinearTechnology company.   (View)

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Parallel regulated power supply composed of LM137

Published:2011/4/6 3:04:00 Author:Nicole | Keyword: regulated power supply

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l2V fixed power supply with optical coupling adopted for short-circuit-proof circuit diagram

Published:2011/4/2 3:30:00 Author:Rebekka | Keyword: short-circuit protection , fixed power supply , optical coupling

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Charging flow chart with AIC1783

Published:2011/4/7 3:31:00 Author:Nicole | Keyword: Charging flow

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