Showing posts with label high. Show all posts
Showing posts with label high. Show all posts
Monday, November 17, 2014
High Gain Crystal Earphone Amplifier
This simple, one-transistor amplifier provides a voltage accretion over 1000 (60 dB) for active a aerial impedance bowl (crystal) earphone. The aerial accretion is accomplished by replacing the acceptable beneficiary resistor with an abnormal constant-current diode that food 1/2 mA yet exhibits a actual aerial attrition to the audio. This amplifier will accord accomplished array life, cartoon alone 500 uA.
Below is a archetypal appliance application it with the aboriginal clear radio ambit on this page. The amplifier provides acceptable aggregate with a bashful antenna. You may appetite a aggregate ascendancy as with the TL431 project! Or use the Crystal Radio RF Amplifier directly above for even more sensitivity with less than 2 mA current drain.
Thursday, November 6, 2014
12KV High Voltage Generator
The hobby circuit below uses an unusual method to generate about 12,000 volts with about 5uA of current. Two SCRs form two pulse generator circuits. The two SCRs discharge a 0.047uF a 400v capacitor through a xenon lamp trigger coil at 120 times a second.
The high voltage pulses produced at the secondary of the trigger coil are rectified using two 6KV damper diodes. The voltage doubler circuit at the secondary of the trigger coil charges up two high voltage disc capacitors up to about 12KV. Although this circuit can’t produce a lot of current be very careful with it. A 12KV spark can jump about 0.75 of an inch so the electronic circuit needs to be carefully wired with lots of space between components.
Tuesday, September 16, 2014
4A High Speed Low Side Gate Driver
The UCC27518 and UCC27519 single-channel, high-speed, low-side gate driver device is capable of effectively driving MOSFET and IGBT power switches. Using a design that inherently minimizes shoot-through current, UCC27518 and UCC27519 are capable of sourcing and sinking high, peak-current pulses into capacitive loads offering rail-to-rail drive capability and extremely small propagation delay typically 17 ns.
The UCC27518 and UCC27519 provide 4-A source, 4-A sink (symmetrical drive) peak-drive current capability at VDD = 12 V. The UCC27518 and UCC27519 are designed to operate over a wide VDD range of 4.5 V to 18 V and wide temperature range of -40°C to 140°C. Internal Under Voltage Lockout (UVLO) schemary on VDD pin holds output low outside VDD operating range.
The UCC27518 and UCC27519 provide 4-A source, 4-A sink (symmetrical drive) peak-drive current capability at VDD = 12 V. The UCC27518 and UCC27519 are designed to operate over a wide VDD range of 4.5 V to 18 V and wide temperature range of -40°C to 140°C. Internal Under Voltage Lockout (UVLO) schemary on VDD pin holds output low outside VDD operating range.
- Low-Cost, Gate-Driver Device Offering Superior Replacement of NPN and PNP Discrete Solutions
- Pin-to-Pin Compatible With TI’s TPS2828 and the TPS2829
- 4-A Peak Source and 4-A Peak Sink Symmetrical Drive
- Fast Propagation Delays (17-ns typical)
- Fast Rise and Fall Times (8-ns and 7-ns typical)
- 4.5-V to 18-V Single Supply Range
- Outputs Held Low During VDD UVLO (ensures glitch free operation at power-up and power-down)
- CMOS Input Logic Threshold (function of supply voltage with hysteresis)
- Hysteretic Logic Thresholds for High Noise Immunity
- EN Pin for Enable Function (allowed to be no connect)
- Output Held Low when Input Pins are Floating
- Input Pin Absolute Maximum Voltage Levels Not Restricted by VDD Pin Bias Supply Voltage
- Operating Temperature Range of -40°C to 140°C
- 5-Pin DBV Package (SOT-23)
- Switch-Mode Power Supplies
- DC-to-DC Converters
- Companion Gate Driver Devices for Digital Power Controllers
- Solar Power, Motor Control, UPS
- Gate Driver for Emerging Wide Band-Gap Power Devices (such as GaN)
Source by www.diagramstream.blogspot.com
Wednesday, September 3, 2014
Build a High input comparator Wiring diagram Schematic
This is a simple High input comparator Circuit Diagram. The inputs of an ideal comparator exhibit infinitely high input resistance, and thus no current flows into its inputs. The schema uses both halves of the CA3290 BiMOS dual voltage comparator. The LED will be turned `ON` whenever the input signal is above the lower limit (VL) but below the upper limit (Vy).
High input comparator Circuit Diagram
Tuesday, September 2, 2014
LM12 High Power Amplifier circuit
See schematic Below :
| Schematic High Power amplifier with LM12 |
Monday, August 25, 2014
12KV High Voltage Generator Wiring diagram Schematic
The hobby schema below uses an unusual method to generate about 12,000 volts with about 5uA of current. Two SCRs form two pulse generator diagram. The two SCRs discharge a 0.047uF a 400v capacitor through a xenon lamp trigger coil at 120 times a second.
12KV High Voltage Generator Circuit Diagram
12KV High Voltage Generator Circuit Diagram
The high voltage pulses produced at the secondary of the trigger coil are rectified using two 6KV damper diodes. The voltage doubler schema at the secondary of the trigger coil charges up two high voltage disc capacitors up to about 12KV. Although this schema can’t produce a lot of current be very careful with it. A 12KV spark can jump about 0.75 of an inch so the electronic schema needs to be carefully wired with lots of space between components.
Source by : Streampowers
Friday, August 22, 2014
High Impedance low Capacitance Wideband Buffer Wiring diagram Schematic
This is a simple High Impedance low Capacitance Wide band Buffer Circuit Diagram. The 2N5485 has low input capacitance which makes this compound series-feedback buffer a wide-band unity gain amplifier.
High Impedance low Capacitance Wideband Buffer Circuit Diagram
High power amplifiers
By organizing the annual CES 2010, Pass Laboratories has recently introduced a new device that is X260.5 mono-block power amplifiers.
X260.5 offers a power output of 260W and comes with the Super-Symmetry topology features that can improve performance by adjusting the characteristic value of balancing and damping amplifier distortion / interference.
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X260.5 device brings all the sonic advantages of mono-block operation for A / B high-power amplifiers in a physical package that can be managed device is half the physical size and weight of the device X600.5 Class D mono-block power.
Simple physical size, weight that can be managed and high strength coupled with great performance make this device as the Pass Laboratories ideal power-amp in any system that refers to a 2-channel and multi-channel format.
In addition, it also brings flexibility X260.5 combination for consumers who already have a device Pass Laboratories Stereo amp and want to add an additional channel power amplifier that is suitable sonic Laboratories Pass that complements other devices that have been there before.
As a stand-alone product, X260.5 device is truly amazing. And its existence at this time will quench the thirst of customers with ease. Equilibrium dynamics coupled with tonal accuracy and spectral balance that provides live music by presenting a taste of the extraordinary closeness.
Pass Labs X260.5 is capable of processing and increase the power transformer and an AC EMI filters, high-speed/soft recovery rectifiers in parallel, the capacitor power supply that is more parallel and supply RC filtering, improvements to the forefront of the input circuit, and the addition of Clas A bias circuit single. This amplifier offers one RCA inputs and one XLR input connectors. And for those who are interested, you can gain amplifier device is worth 11000 USD or about 110 million dollars per pair. Wow, a fantastic price!
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X260.5 offers a power output of 260W and comes with the Super-Symmetry topology features that can improve performance by adjusting the characteristic value of balancing and damping amplifier distortion / interference.
Simple physical size, weight that can be managed and high strength coupled with great performance make this device as the Pass Laboratories ideal power-amp in any system that refers to a 2-channel and multi-channel format.
In addition, it also brings flexibility X260.5 combination for consumers who already have a device Pass Laboratories Stereo amp and want to add an additional channel power amplifier that is suitable sonic Laboratories Pass that complements other devices that have been there before.
As a stand-alone product, X260.5 device is truly amazing. And its existence at this time will quench the thirst of customers with ease. Equilibrium dynamics coupled with tonal accuracy and spectral balance that provides live music by presenting a taste of the extraordinary closeness.
Pass Labs X260.5 is capable of processing and increase the power transformer and an AC EMI filters, high-speed/soft recovery rectifiers in parallel, the capacitor power supply that is more parallel and supply RC filtering, improvements to the forefront of the input circuit, and the addition of Clas A bias circuit single. This amplifier offers one RCA inputs and one XLR input connectors. And for those who are interested, you can gain amplifier device is worth 11000 USD or about 110 million dollars per pair. Wow, a fantastic price!
Thursday, August 21, 2014
Power supply circuit suitable with high power amplifier
The Power supply circuit suitable with high power amplifier is well designed for large power amplifier circuit and amplifier circuit also requires protection quickly enough so as not to damage because of the power supply is less than the maximum performance or because of a short-circuit on a series of power supply and amplifier. Power supply circuit suitable with high power amplifier is equipped with a fuse, with earth protective chassis. So save on the amplifier and voltage shock to the chassis. In addition to the Power supply circuit suitable with high power amplifier the hum of voices issued almost non-existent because of the high frequency transformer has been issued because of grounded disappeared.
In a multichannel amplifier, power supply will fell into one of three types. In order rising costs, and expected decreases the interaction between the channels, namely:
1. Transformer, rectifiers, and reservoir capacitors are shared between channels.
2. Each channel has its own transformer secondary, rectifiers, and reservoirs. There is one
transformer core and primary, but only together.
3. Each channel has its own transformer, rectifiers, and reservoirs. Nothing except perhaps that electricity and electrical switch split.
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