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Index 273

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

24V regulated power supply circuit with 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

0～15V regulated power supply circuit with 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

Practical soft-start circuit in 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

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

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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

Lithium ion battery charging and system load power up schematic diagram
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Lithium ion battery equivalent circuit

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

Lithium ion battery equivalent circuit
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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

Lithium ion battery charge-discharge protection circuit
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Temperature control typical circuit composed of MAX712/MAX713

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

Temperature control typical circuit composed of MAX712/MAX713
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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

No precharge function typical application circuit composed of MAX1894/MAX1924
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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

Intermediate frequency power supply system structure drawing using 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

115V／400Hz voltage power supply circuit
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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

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

15V adjustable power supply composed of μA723
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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

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

LM117/317 typical application adjustable regulated power supply circuit
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Charger circuit composed of LTC4060

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

Charger circuit composed of LTC4060
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)