10A Power Supply IC with ISL8200M

This Electronic Project 10A power offer circuit s supported the ISL8200M IC that need few external elements and is incredibly straightforward to create however is capable {to offer|to offer} a high power creating it helpful in current-sharing DC DC power supply module for those power hungry Datacom\Telecom\Servers.

10A Power Supply IC with ISL8200M:

This power supply circuit accept a wide input voltage from 3 volts up to 20 volts at 10 A . The output voltage range can be set using a simple rsistor from 0.6 volts up to 6 volts . If we need more current is very easy to obtain using th ISL200M paralleling up to 6 modules , so the maximum output current can be in that case 60A .

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12V Fan Directly on 230V

This Electronic Circuit plan is never new, however once it involves creating a trade-off between employing a little, short-circuit proof electrical device or a electrical phenomenon resistor (directly from 230 V mains voltage) because the power provide for an exponent, it will are available in terribly handy. If forced cooling is Associate in Nursing afterthought and therefore the offered choices ar restricted then maybe there's no alternative alternative. At low currents a electrical phenomenon divider needs less area than alittle, short-circuit proof electrical device.

12V Fan Directly on 230V Circuit Diagram:

R1 and R2 are added to limit the inrush current into power supply capacitor C2 when switching on. Because the maximum rated operating voltage of resistors on hand is often not known, we choose to have two resistors for the current limit. The same is true for the discharge resistors R3 and R4  for C1. If the circuit is connected to a mains  plug then it is not allowed that a dangerous voltage remains on the plug, hence R3 and R4.

Capacitor C1 determines the maximum current that can be supplied. Above that maximum the power supply acts as a current source. If the current is less then zener diode D1 limits the maximum voltage and dissipates the remainder of the power. It is best to choose the value of C1 based in the maximum expected current. As a rule of thumb, start with the mains voltage when calculating C1. The 12 V output voltage, the diode forward voltage drops in B1 and the voltage drop across R1 and R2 can be neglected for simplicity. The calculated value is then rounded to the nearest  E-12 value.

The impedance of the capacitor at 50 Hz is 1 / (2π50C). If, for example, we want to be able to supply 50 mA, then the required impedance is 4600 Ω (230 V/50 mA). The value for the capacitor is then 692 nF. This then becomes 680 nF when rounded. To compensate for mains voltage variations and the neglected voltage drops you could potentially choose the next higher E-12 value. You could also create the required capacitance with two smaller capacitors. This could also be necessary depending on the shape of the available space. It is best to choose for C1 a type of capacitor that has been designed for mains voltage applications

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Dual Step-Down Power-Supply (SMPS) Controller using MAX17031

This is terribly straightforward electronic circuit project of twin reduction power-supply (smps) controller circuit victimisation the MAX17031. twin reduction power-supply (SMPS) controller are often designed a really straightforward high potency power provide circuit with synchronous rectification, supposed for main 5V/3.3V power generation in powered systems.

Low-side MOSFET sensing provides a simple low-cost, highly efficient current sense for valley current-limit protection. Combined with the output overvoltage and undervoltage protection features, this current limit ensures robust output supplies.

The device includes independent shutdown controls with well-defined logic thresholds to simplify power-up and power-down sequencing. To prevent current surges at startup, the internal voltage target is slowly ramped up from zero to the final target over a 1ms period.

The Max17031 can be used in applications like : Notebook Computers , Ultra-Mobile PC , Main System Supply (5V and 3.3V Supplies), 2 to 4 Li+ Cells Battery-Powered Devices , Telecommunication

Main features of Max 17031 are : Dual Quick-PWM , Preset 5V and 3.3V Outputs , Internal 100mA, 5V Linear Regulator , Internal OUT1 LDO5 Bypass Switch , Secondary Feedback (SKIP Input) Maintains Charge Pump , 3.3V, 5mA Real-Time Clock (RTC) Power (Always On) , 2V ±1% 50μA Reference , 6V to 24V Input Range , Pulse-Skipping/Forced-PWM/Ultrasonic Mode Control , Independent SMPS and LDO5 Enable Controls , Combined SMPS PGOOD Outputs , Minimal Component Count.

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15-V 1-A Regulated Power Supply

Here is incredibly straightforward build power provide Electronic Circuit Project of 15-V 1-A Regulated Power provide circuit. the availability receives - twenty V from the rectifier/filter that is fed to the collector of the Darlington pnp pass semiconductor, a TIP105. the bottom drive to the TIP105 is provided through electrical device R5. the bottom of the TIP105 is driven from Vz terminal at pin nine, that is that the anode of a six.2-V zener diode that connects to the electrode of the uA723 output management semiconductor.

15-V 1-A Regulated Power provide Circuit Diagram:

The method of providing the positive feedback required for foldback action is shown. This technique introduces positive feedback by increased current flow through resistors R1 and R2 under short-circuit conditions. This forward biases the base-emitter junction of the 2N2907 sensing transistor, which reduces base drive to the TIP105

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Electronic Project of Laser Power Supply

Here is Electronic Project of optical maser Power offer circuit, ICl may be a 555 timer running at concerning sixteen kilocycle per second. This IC drives Ql, a TIP146, that produces a 12-V sq. wave across atomic number 81 primary. This produces between 800 and a couple of,000 V across the secondary, that is doubled to three to five kilovolt.

Laser Power Supply Circuit Diagram:

When the load (laser) on the power supply increases, current Q2 is turned on, which energizes RY1. This changes the duty cycle of the 555 timer, lb adjust this supply, set R12 and R13 at the center. Adjust R12 until the laser tube triggers, and make sure that the relay pulls in. If the relay chatters, adjust R12. If the full-clockwise adjustment of R12 fails to ignite the tube, adjust R13.

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