Switching Power Supply Circuits
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Is shown in the output is 5V / 0.4A low-power switching power supply circuit, the circuit can be used to make transformer saturation soft-switching circuit... -
Is a relay controlled by a closed turn the digital logic circuit Rd touch input switching circuit... -
Oscillation: C310 positive terminal voltage of about 300V, the R311, R312 is applied to the switch BG311 B pole, while the B301 via the switching transformer (4), (6) was added BG311 of C pole winding, the switch begins to conduct,.. -
Switching power supply drive medium power applications in PM4040F bridge circuit as shown below: The PM4040F to drive a 200W to 800W switching power supply can refer to the following circuit, the other circuit section please PM4040F practical circuit... -
T amplifier circuit schematic section shown in Figure 3-51 Japan Sanyo STK6303 Pina made high-power thick film integrated circuit, the power supply voltage maximum Dashi sov, output current up to about loA Division monolithic circuit powering Guests 36V,.. -
AC-DC power supply without power switching circuit normally used for lighting load circuit, once the power grid or power is restored, the standby power supply automatic switching immediately. Automatic switching circuit using a transistor as shown, the.. -
A typical DVD switching power supply circuit Is shown in digital products standby power supply circuit, which uses switching power supply structure, the oscillation switch IC T.. -
Adaptive zero voltage switching electronic ballast schematic diagram: IR2520 is mainly used for driving the fluorescent 40W or less. Rated lamp power different, Q1, Q2, L2 and .. -
Applications are given to complete the four-piece HL402 switching power supply system diagram system drive four power IGBT switching power supply system. FIG IGBT drive pulse i.. -
As illustrated, 555 and R1, R2, C1 composition astable multivibrator, the oscillation frequency is about 10kHz, duty cycle close to 50%. VT2, VT3 switch as expanding the use of.. -
As shown Panasonic M12H switching power supply circuit, the use of Panasonic movement M12H TV: Panasonic TC-230H, TC-2030DHN, TC-830D, TC-840D and the like. Oscillation Approxi.. -
As shown by L296 chip high current switching power supply chip composed of 5 ~ 15V, 4A power supply in FIG. L296 monolithic high-current switching power supply chip features ar.. -
As shown in FIG Hitachi np8c switching power supply circuit, Hitachi NP8C power models are: Hitachi CTP236, CEP320D, CRP350D, 450D, Furi HFC-236,450, Venus C37-401, C46-1, C563.. -
As shown in FIG by DN-25 IC switching power supply. DN-25 is a monolithic switching power supply device, suitable for the production of medium output current, wide voltage rang.. -
As shown in FIG constitute grounds L4970A power switching power supply. L4970A is a high-power monolithic integrated switching regulator, the chip uses SIP-15 package, which is.. -
As shown in FIG constituted by L4960 + 5 ~ + 40V switching power supply circuit. AC 220V voltage through the step-down transformer, bridge rectifier and filter DC voltage Vi, i.. -
As shown in the design of the power supply circuit diagram. Using the oscillator circuit 74HC series CMOS logic circuit, the switching device is MOSFET. This means the number o.. -
As shown, the circuit adds an optical coupler (CNY75A) and adjustable precision shunt regulator (TL431). Current limiting resistor R3, R4 and R5 for the sampling resistor. When.. -
As shown, the zero volt switching circuit in the zero crossing of the AC voltage generated trigger pulse. In order to trigger the zero crossing of the 555 limit comparator conn.. -
BE-150 mainframe computer switching power supply circuit The host computer is shown in BE-150-type switching power supply circuit, the oscillation control IC to switch TIA94. A.. -
Changhong DVB-2000 digital satellite receiver switching power supply circuit Rainbow DVB -2000 top box digital satellite receiver switching power supply circuit mainly by the p.. -
Charging circuit from the DC power supply switching power supply control .. -
Circuit shown in Figure, the circuit can achieve greater power output, just change the part of the device. FIG circuit R1 to the left, L1, D1, C1 to C7 are conventional common .. -
Complementary voltage switching Class D amplifier circuit shown in Fig. Transistor VT1, VT2 are 3DA12. Among them, two of the same type (NPN) tube series product transistor VT .. -
Uses the MAX641 switching controller and an external discrete charge pump to step up the input voltage. This circuit can service low loads and is efficient when the output is two, three, four times the input voltage. Adding the MAX627 MOS driver can further.... -
EMI from offline switching power supplies typically causes all sorts of problems for power-supply designers. You may need a large EMI filter to meet FCC emission requirements. Switchers for high efficiency produce high-frequency switching noise that can....
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The system makes use of the A/D to read the input and output voltages, the Capture/Compare/Pulse module to generate a PWM output, and Timer2 to regulate how fast the program runs. External hardware includes a switching power converter and a suitable....
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A 4V-60V to 5V DC/DC converter is shown in Figure 2. This converter is well suited for 12V automotive battery applications, maintaining output voltage regulation with battery line voltages from 4V cold crank through 60V load dump. The threshold for....
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The core voltages for FPGAs are moving lower as a result of advances in the fabrication process. The newest FPGA family from Altera, the Stratix® II, now requires a core voltage of 1.2V and the Stratix, Stratix GX, HardCopy® Stratix and CycloneTM....
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This application note describes a complete flyback switched mode power supply that uses a Fairchild Power Switch. The MOSFET and its control IC are built into one package. The MOSFET is in fact a SenseFET. Various protection features are also included.....
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I built a PCB for a simple switching power supply, originally designed by Keith Payea of the SRS. It uses an LM393, a P-channel power MOSFET, and darn little else. Since its frequency varies based on load (and nearly everything else imaginable), you can use....
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The switching power supply, shown in the schematic, provides 12 volts, at 10 amps, maximum, using a discrete transistor regulator with an op-amp functioning as a comparator in the feedback circuit. The supply was constructed in 1984 and is variable....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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