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5V Regulated Power Supply Circuit Diagram is a small +5V power supply, which is useful when experimenting with digital electronics. Small inexpensive wall tranformers with variable output voltage are available from any electronics shop and supermarket. Those transformers are easily available, but usually their voltage regulation is very poor, which makes then not very usable for digital circuit experimenter unless a better regulation can be achieved in some way. The following circuit is the answer to the problem. This circuit can give +5V output at about 150 mA current, but it can be increased to 1 A when good cooling is added to 7805 regulator chip. The circuit has overload and thermal protection. The capacitors must have enough high voltage rating to safely handle the input voltage feed to circuit. The circuit is very easy to build for example into a piece of veroboard.  5V Regulated Power Supply Circuit Diagram Parts: C1 = 100uF-25V electrolytic capacitor, at least 25V voltage r...

This is an amplifier circuit using ic LM12 as the main amplifier. This amplifier has a 150Watt power output and has a 4 ohm impedance. These amplifiers have a classified high output power. The frequency response of 10Hz to 30KHz. Supply Voltage at least 9 Volt and 50 Volt CT. See schematic Below : Schematic High Power amplifier with LM12

This is a simple 300W Subwoofer Power Amplifier Circuit Diagram. This is an amplifier circuit that is formed from a transistor amplifier miraculous. This circuit is used in the speaker subwoofer with 300W maximum power on each side. To apply it, can be used in the room that is not too large, like the car. And the voltage needed between 25 to 42 Volt DC. 300W Subwoofer Power Amplifier Circuit Diagram  

 500W Mos-Fet Power Inverter from 12V to 110V/220V This circuit will provide a very stable "Square Wave" Output Voltage. Frequency of operation is determined by a pot and is normally set to 60 Hz. Various "off the shelf" transformers can be used. Or Custom wind your own FOR BEST RESULTS. Additional MosFets can be paralleled for higher power. It is recommended to Have a "Fuse" in the Power Line and to always have a "Load connected", while power is being applied. The Fuse should be rated at 32 volts and should be approximately 10 Amps per 100 watts of output. The Power leads must be heavy enough wire to handle this High Current Draw!

Stereo Power Amplifier is 2x70Watt STA550 chip audio power with BASH concept that can be connected with digital device. 2x70Watt STA550 Stereo Power Amplifier is an amplifier with BTL system with symmetrical power supply with ground. Power amplifier STA550 uses power output transistor which is on the chip and is set to produce a high efficiency audio power. Power output on the STA550 is using the system without copling ac bridge (direct) and zero offset. Strengthening of the STA550 from stereo power amplifier is +12 dB. 2x70Watt STA550 Stereo Power Amplifier is equipped with temperature sensors for protection from overheating and current-limiting protection system for power amplifier. 2x70Watt STA550 Stereo Power Amplifier is equipped with standby and mute controls to regulate silent or active mode power amplifier. Feature Stereo Power Amplifier 2x70Watt STA550 : Monochip Bridge Stereo Amplifier dengan Bash® Architecture 55+55w Output Power @ Rl = 4/8 W, Thd = 0.5% 70+70w Output Power ...

This article should satisfy those who might want to build a low power FM transmitter. It is designed to use an input from another sound source (such as a guitar or microphone), and transmits on the commercial FM band - it is actually quite powerful, so make sure that you don't use it to transmit anything sensitive - it could easily be picked up from several hundred metres away. The FM band is 88 to 108MHz, and although it is getting fairly crowded nearly everywhere, you should still be able to find a blank spot on the dial. NOTE: A few people have had trouble with this circuit. The biggest problem is not knowing if it is even oscillating, since the frequency is outside the range of most simple oscilloscopes. See Project 74 for a simple RF probe that will (or should) tell you that you have a useful signal at the antenna. If so, then you know it oscillates, and just have to find out at what frequency. This may require the use of an RF frequency counter if you just cannot locate the ...

Circuit amplifier "High Power HiFi Power Amplifier With MOSFET" is capable of giving the output power to the load speakers 240Watt and 380Watt 8Ohm to load 4Ohm speakers. Voltage source to a series of power amplifiers "High Power HiFi Power Amplifier With MOSFET" This is a CT 25V 50V 25V to 50V CT of transformer CT. In making this power amplifier needs to be installed heatsinks on the power amplifier (MOSFET) in order to avoid excessive heat. The series of power supply to power amplifer can use the transformer 5A-20A and 35A mounted diode bridge and capacitors for a minimum of 2x 10.000uF electrolit. Details for the power amplifier circuit can be seen in the following figure. High Power Series HiFi Power Amplifier With MOSFET can modify to increase power output by doubling the final power amplifier is based on the diiginkan. Power generated from doubling the final power amplifier will also double its power output of power amplifier circuit "High Power HiFi Powe...

The 100Khz Multiple Output Switching Power Supply Circuit Diagram uses two VN4000A 400-V MOS POWER FETs in a half-bridge power switch configuration. Outputs available are + 5 Vat 20 A and ±15 V (or ±12 V) at 1 A. Since linear three-terminal regulators are used for the low-current outputs, either ±12 V or ±15 V can be made available with a simple change in the transformer secondary windings. A TU94 switching regulator IC pro Vides pulse-width modulation control and drive signals for the power supply. The upper MOS POWER FET, Q7. in the power switch stage is driven by a simple transformer drive circuit. The lower MOS. Q6, since it is ground referenced. is directly driven from the control !C. 100Khz Multiple Output Switching Power Supply Circuit Diagram

Circuit of an automatic switch for audio power amplifier stage is presented here. The circuit uses stereo preamplifier output to detect the presence of audio to switch the audio power amplifier on only when audio is present. The circuit thus helps curtail power wastage. IC1 is used as an inverting adder. The input signals from left and right channels are combined to form a common signal for IC2, which is used as an open loop comparator. IC3 (NE556) is a dual timer. Its second section, i.e., IC3(b), is configured as monostable multivibrator. Output of IC3(b) is used to switch the power amplifier on or off through a Darlington pair formed by transistors T1 and T2. IC3(a) is used to trigger the monostable multivibrator whenever an input signal is sensed. Circuit diagram: Automatic Switch For Audio Power Amplifier Circuit Diagram Under ‘no signal’ condition, pin 3 of IC2 is negative with respect to its pin 2. Hence the output of IC2 is low and as a result output of IC3(a) is high. Since t...

The HA13158A is four-channel BTL amplifier IC designed for car audio, featuring high output and low  distortion, and applicable to digital audio equipment. It provides 34 W output per channel, with a 13.7 V  power supply and at Max distortion. Circuit diagram: 34 W × 4-Channel BTL Power IC Datasheet for HA13158A: Download

Amplifier circuit here is all based on the ic in the gains. Three IC TA7230P, TA7236P, TA7237AP is intregated circuit (IC) which was applied to the power amplifier. Each IC has a different output, different input voltage, all IC TA7230P, TA7236P, TA7237AP is manufactured by Toshiba. TA7230P, TA7236P, TA7237AP amplifier schematic

This amplifier increases the power of an FM transmitter 50 mW to 10 W in the range 88 to 108 MHz Power amp (10 w) for FM Transmitter Circuit Diagram It is quite critical assembly and RF power transistors must be mounted on heat radiators and handled with utmost care. The coil L1 is formed by 04 turns of wire of 1 mm in diameter in the form of 8 mm diameter. The coil L5 is formed of 07 turns of wire 0.5 cm in diameter in the form of 6 mm in diameter, the coil L6 is wound wire of 1 mm and consists of 03 turns in the form of 10 mm diameter. Finally coil L2 consists of 04 turns of wire of 1 mm diameter in the shape of 10 mm. The transformer T1 includes coils L2, L3 and L4, and these coils has turns of one wire of 0.5 mm figure 2. In this same figure we have to identify the terminals of the transistors. The capacitors must be ceramic disk type or plateau and resistors are 1/4 W.

The Uninterrupted Power Supply in an IC . Cymbet Corporation announced the availability of the EnerChip™ CC CBC3105 smart solid state battery. The CBC3105 combines the award winning EnerChip battery with integrated input power conversion, battery management and regulated output capabilities. The Cymbet EnerChip™ CC is a smart rechargeable solid state battery Uninterrupted Power Supply (UPS in a Chip™) that provides power backup to microelectronic devices when main power fails. The EnerChip CC provides power supply monitoring and switches over to the internal solid state backup battery when the supply drops below a set threshold. The EnerChip CC product family can provide anywhere from several hours to several weeks of backup time.  Simple Uninterrupted Power Supply in an IC Circuit Diagram   The CBC3105 is an ideal solution for design engineers who need a compact device to back-up a Real Time Clock or Microcontroller during power failure where coin cell batteries or super c...

This Electronic Project of Single Ltc Power Supply circuit is very low cost, and high efficiency battery-powered applications.  One LTC 1149 synchronous switching regulator can deliver both 3.3- arid 5-V outputs.  Single Ltc Power Supply Circuit Diagram: The design`s simplicity, low cost, and high efficiency make it a strong contender for portable, battery-powered applications. The circuit described accepts input voltages from 8 to 24 V, to power any combination of 3.3-V and 5-V loads totalling 17 W or less. For input voltages in the 8-V to 16-V range, the LTC1148 may be used, reducing both quiescent current and cost.

Power Amplifier with voltage regulator 4 × 50 Watt TDA8588    The TDA8588 is a multiple voltage regulator combined with four independent audio power amplifiers configured in bridge tied load with diagnostic capability. The output voltages of all regulators except regulators 2 and 3 can be controlled via the I2C-bus. However, regulator 3 can be set to 0 V via the I2C-bus. The output voltage of regulator 2 (microcontroller supply) and the maximum output voltage of regulator 3 (mechanical digital and microcontroller supplies) can both be either 5 V or 3.3 V depending on the type number. The maximum output voltages of both regulators are fixed to avoid any risk of damaging the microcontroller that may occur during a disturbance of the I 2C-bus. The amplifier diagnostic functions give information about output offset, load, or short-circuit. Diagnostic functions are controlled via the I2C-bus. The TDA8588 is protected against short-circuit, over-temperature, open ground and open VP ...

Used ICs: L6562D – TEA1507 (SMPS Control) SMPS circuit diagram and PWB Click on the pictures to Magnify

This is a simple power on switching circuit . This type of reset pulse is ideally provided by this circuit. Because of the high input impedance of the Schmidt trigger, long reset pulse times may be achieved without the excess dissipation that results when both output devices are on simultaneously, as in an ordinary gate device (B). A reset pulse is often required at power-on in a digital system. See circuit diagram below. Simple Power On Reset Circuit Diagram

This is a class AB transistor power amplifier. It is a simple amplifier to build, uses standard parts and is stable and reliable.  The entire circuit utilizes commonly available components and may be simply built over a general-purpose board. But this amplifier has very good sound quality. There are eleven transistors, including four in the output stage. Q1 and Q2 transistor must be between 3 and 5  amperes power transistors. Q4 and Q5 must be between 100mA and 500mA driver transistors. Other transistors are 10mA small driver transistors. Q1, Q4 and Q2, Q5 are complementary pairs, they make complementary darlington pairs. PART LIST R1 1.5KΩ ¼W R2 150Ω ¼W R3 1KΩ ¼W R4 0.22Ω 2W R5 0.22Ω 2W R6 39KΩ ¼W R7 1KΩ ¼W R8 120Ω ¼W R9 6.8KΩ ¼W R10 6.8KΩ ¼W R11 47KΩ ¼W R12 47KΩ ¼W R13 2.2KΩ ¼W R14 180KΩ ¼W R15 18KΩ ¼W C1 22pF Ceramic C2 4.7µF 16V C3  1000µF 25V C4 100µF 25V D1 1N4148 D2 1N4148  Q1  2SD313  Q2  2SB507  Q3  2SA733  Q...

National Semiconductor has been producing and designing ICs for use in switch-mode power supplies for many years. The application of these devices is normally straightforward, helped by the excellent documentation that is available. A typical example of a switch-mode power supply is that based on the LM2671 or LM2674. The components for it are available for outputs of 3.3 V, 5 V and 12 V. There is also a version providing a presettable output voltage. Within the specified application, the supplies can deliver currents of up to 500 mA. Note-worthy is the high switching frequency of 260 kHz. This has the advantage that only low-value inductor and capacitors are needed, and this results in excellent efficiency and small dimensions. In normal circumstances, the efficiency is 90% and may even go up to 96%. Both ICs provide protection against current and temperature overloads. The LM2671 has a number of additional facilities such as soft start and the option to work with an external clock. T...

It has explode rainbow light voguish the front panel and very beautiful by night. Light & set Aluminum alloy pencil case on behalf of distribution of roast without doubt RCA Input , can be real used such as Ipod,MP3/MP4 headset amplifier Mini size calm to installation by DIY, especially talented fit for car, motor bike and other audio DIY device. P.M.P.O,: 2 x 180W, R.M.S.: 2 x 20W Input power: 12V 6A DC, (power supply included) Input sensitivity: 200mv Speaker impedance : 4 - 8ohm To Buy Amplifier with Amazon click this link : Lepai TRIPATH TA2020 Class T Mini Amp Hi-Fi Stereo Audio Amplifier