http://www.cwhdallas.com/generators-modulators/
Generators Modulators
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PWM PULSE WIDTH MODULATOR 55A HHO HYDROGEN GENERATOR |  |
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US $109.00 | 19d 21h 22m |
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PWM PULSE WIDTH MODULATOR 35A HHO HYDROGEN GENERATOR | |
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US $59.99 | 12d 22h 11m |
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PWM PULSE WIDTH MODULATOR 30A HHO HYDROGEN GENERATOR | |
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US $29.88 | 10d 12h 34m |
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HHO PWM 30A PULSE WIDTH MODULATOR HHO GENERATORS | |
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US $37.89 | 23d 4h 21m |
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PWM 30A PULSE WIDTH MODULATOR HHO GENERATORS MOTOR | |
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US $37.89 | 24d 2h 49m |
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PWM 30A PULSE WIDTH MODULATOR HHO GENERATORS MOTOR | |
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US $45.67 | 20d 13h 27m |
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PWM PULSE WIDTH MODULATOR *TRUE 35A* HHO GENERATOR | |
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US $49.99 | 12d 9h 7m |
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Constant Current Pulse Width Modulator PWM HHO Hydrogen Generator | |
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US $56.00 | 2d 16h 17m |
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PWM 30A PULSE WIDTH MODULATOR HHO GENERATORS MOTOR | |
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US $45.67 | 27d 16h 59m |
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HP 8657D Signal Generator w/ DQPSK Modulator | |
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US $850.00 | 28d 4h 40m |
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8-30 VDC 55A PWM 50 Amps MODULATOR HHO 12 24 VDC HYDROGEN GENERATOR LED | |
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US $70.00 | 23d 53m |
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PWM Advanced Pulse width modulators HHO HYDROGEN GENERATOR | |
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US $129.97 | 6d 22h 7m |
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8-30 VDC 35A PWM LED PULSE WIDTH MODULATOR HHO GENERATOR HYDROGEN 12 24 VDC 30A | |
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US $49.99 | 22d 12m |
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EFIE & Constant Current Pulse Width Modulator, PWM HHO Hydrogen Generator MAP | |
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US $109.00 | 22h 13m |
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Quintron Systems Inc. 787-6597 Rackmount Generator 792-6252 modulator | |
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US $381.65 | 16d 4h 21m |
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HHO Generator Pulse Width Modulator PWM PCB similar to dave lawton circuit | |
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US $9.50 | 15d 15h 23m |
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Pulse Width Modulator PWM HHO Hydrogen Generator | |
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US $25.00 | 1d 20h 50m |
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EFIE & Constant Current Pulse Width Modulator, PWM HHO Hydrogen Generator MAP | |
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US $109.00 | 1d 19h 38m |
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Video Sync Generator includes Channel 3 Modulator | |
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US $45.95 | 10d 23h 43m |
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Constant Current Pulse Width Modulator PWM HHO Hydrogen Generator | |
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US $56.00 | 1d 11h 14m |
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PROMAX GV-798 (GV798AES01) TV PATTERN GENERATOR , DOUBLE SYNTHSIZED MODULATOR | |
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US $1,560.00 | 10d 2h 55m |
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12 24 VDC 30A PWM PULSE WIDTH MODULATOR HHO GENERATOR | |
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US $39.99 | 9d 17h 35m |
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EFIE & Constant Current Pulse Width Modulator, PWM HHO Hydrogen Generator MAP | |
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US $109.00 | 2d 21h 9m |
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PWM PULSE WITH MODULATOR 30A - HHO HYDROGEN GENERATOR | |
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US $29.00 | 5d 21h 22m |
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Pulse Width Modulator PWM HHO Hydrogen Generator | |
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US $25.00 | 23h 12m |
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Riber TCA 380 Scan Generator w/ Scan & Modulator Plug-ins | |
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US $1,132.20 | 2d 1h 31m |
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Blonder Tongue BAVM-860SAW CH-28 RF Generator Audio Video Modulator 120V 12W | |
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US $49.99 | 26d 11h 15m |
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Pulse Width Modulator PWM HHO Hydrogen Generator | |
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US $25.00 | 2h 35m |
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Constant Current Pulse Width Modulator PWM HHO Hydrogen Generator | |
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US $56.00 | 2d 20h 19m |
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Applied Magnets Introduces the Windmax Line of Hybrid Small Wind Generators
Applied Magnets is pleased to announce it's low cost lineup of WindMax Hybrid Small Wind & Solar Power Generators.
The new line consists of the WINDMAX-HY06 600W Hybrid Solar-Wind System (generator, hub, 3 blades, tail , controller and one BP Solar 115W solar module) and the WINDMAX-HY11 1115W Hybrid Solar-Wind System (generator, hub, 3 blades, tail, controller and two BP 170w solar modules).
Both Hybrid wind/solar systems are compact & light weight with low start-up & cut-in speeds which begin producing power at 5.2 mph. These new systems are highly efficient, highly reliabile and encorporate state-of-the-art Electromagnetic Speed-Control.
The new WindMax Hybrid Wind & Solar Power Generators are also available as stand alone wind turbines in the WINDMAX-H05 500W Max Power Wind Generators w/controller and Electromagnetic Speed Control, Blade Over-speed Braking with Hybrid Wind/Solar Output Capability, the WINDMAX-H08 775W Wind Generators w/controller, with Electromagnetic Speed Control, Blade Over-speed Braking with Hybrid Wind/Solar Output Capability, and the WINDMAX-H20 2kW Wind Generators with Electromagnetic Speed Control, Blade Over-speed Braking with Hybrid Wind/Solar Output Capability.
The Windmax H series Wind turbine system is the perfect choice in a smart investment for a renewable energy solution built on advanced technologies. The Windmax H series defines a new level of superior performance and reliability by using:
1. Strong Neodymium magnet PMA, the unique winding and multi pole design reduces the start-up torque of the alternator that assures the WINDMAX-H series can generate electricity at low wind speed.
2. Advanced aerodynamic braking by patent-pending low noise, nylon/reinforced fiber glass blades.
3. Electromagnetic over-speed control, no more problematic mechanical furling.
4. Integrated solar-wind hybrid power generation.
5. Innovative low maintenance two-moving-part system design.
6. Easy to Install, Light Weight and highly reliable.
7. Generator: The generator is built using high-performance rare earth neodymium permanent magnets, so the alternator is compact and light weight with a high power generating efficiency. Generator housing is made using precision cast technology from high strength aluminum to assure a high quality finish. It is designed for various working conditions such as severe climate, sand and salt corrosive environments and marine usage.
8. Rotor Blades: Advanced airfoil design to capture maximum wind energy. Made of mixed nylon and reinforced fiber glass materials using the latest advanced thermoplastic engineering and precision injection molding technology for high strength, flexibility and aerodynamic braking. The blades have exceptional consistency and aerodynamic outline with a mass distribution that ensures the rotors operate with nearly no noise and minimal vibration.
In summary, Windmax H series are the most well built, reliable, most efficient and cost-effective small wind turbines available on the market today.
The result: greater energy production yield and lowest ownership cost.
Design Features
Advanced over-speed control mechanism vs. old style furling
Problems with old style furling: Old style furling works well in an ideal, wind tunnel test environment. Realistically, wind speed and wind direction changes frequently and mechanical furling doesn’t have instantaneous response to actual changes of wind status. Especially in bad weather conditions, small wind turbine furling components wear out quickly, therefore, increases maintenance costs and shorten wind turbine service life or causes system failure.
Most of old style furling based wind turbines have three moving parts. It is the moving parts for mechanical over-speed protection that wear out and require a lot of maintenance. Operation of furling based wind turbines would lead to mechanical abrasion, cause vibration, malfunction, and failure of the wind turbine and other devastating results in the long run.
The rule of thumb for a reliable wind turbine is that the fewer the moving parts, the more reliable the wind turbine is.
The Windmax Solution: Windmax H series adopted Innovative over-speed control so it improves the reliability by abandoning the moving parts for mechanical over-speed protection and minimizing the moving parts to only two.
Innovative over-speed control design of the Windmax H series: The Windmax H series speed limitation abandoned the traditional failure-prone mechanical furling system and solved safety and reliability problems facing most small wind turbines. Advanced speed limitation of Windmax H series is achieved through advanced electromagnetic speed limitation supplemented by aerodynamic speed limitation by blade deformation. Electromagnetic braking is used in combination with Aerodynamic braking to reduce the rotational speed of the generator.
Combination of Electromagnetic braking and aerodynamic braking maximizes energy capture by extending Windmax H series turbine’s operating speed range into higher speed winds and lower speed winds which are missed by the old style wind turbines.
1. Electromagnetic speed limitation:
Controller will monitor the wind generator rotation through the wind generator output voltage and frequency, and will timely control wind generator rotation by generating reverse reluctance torque if necessary, according to different wind conditions and battery status. Electromagnetic control features quick response, high reliability and therefore ensures the entire control system to be highly reliable.
2. Blade aerodynamic braking:
In high wind speed conditions, patent pending blades will generate a reverse reluctance torque, so that the blade efficiency falls and the blade rotation speed starts to decline. With the continuing reluctance torque, blade rotation speed is limited to a certain range to prevent damage to the wind turbine blades.
Wind-solar hybrid power generation wind turbine system
Problem with single source renewable energy system:
1st Generation single source renewable energy systems such as solar systems or wind turbines don’t use renewable energy efficiently. Wind turbines creates less output during the summer, whereas during the winter the solar panels will produce less output.
Windmax Solution:
Our Windmax hybrid solar-wind turbine integrated wind and solar power sources capture the most energy in all conditions. Since solar and wind energy availability differs by locations, seasons and climates, solar and wind energy can be mutually complementary in that solar and wind hybrid systems make full use of wind and solar energy together to generate as much power as possible compared to a single energy source for power generation. A solar & wind hybrid system is more cost-efficient than wind or solar alone.
Easy-to-install, light weight, compact, reliable and maintenance-free wind turbines, designed for both land-based and marine applications.
Problem with old style wind turbine systems:
Most old style wind turbines are heavy weight with unpredictable reliability, hard to install and require lots of maintenance. Due to the fact that most installations are in very remote and inaccessible locations, the old style systems make regular maintenance costly and sometimes impractical.
Windmax Solution:
Windmax H series maintenance free design has a minimum of moving parts with inherent reliability. Our light weight, compact die-casting aluminum alloy generator design makes installation very easy. Rotor blades built with latest advanced thermoplastic engineering and precision injection molding technology is durable and efficient.
Higher performance at low wind speed
The problem with small wind turbine system on the market today: The most challenging problem facing small wind turbine systems is that power output is very low or close to nothing under low wind condition. The wind speed in most locations don’t stay at rated wind speed all the time, wind turbine actually operates at wind speed lower than rated wind speed at most of the time. In order to have good overall energy output, it is critical for small wind turbine to output as much as power at low wind speed.
The WindMax Solution: Strong Neodymium magnet PMA, unique winding and multi pole design reduces the start-up torque of the alternator that assures the WINDMAX-H series can generate electricity at low wind speed. WindMax system components such as wind generator and blades are designed to output more electricity at low wind speed than other small wind turbines on the market today. WindMax system’s excellent power output under low wind speed results in greater energy production yield and lowest ownership cost.
WindMax H series components are built with advanced technologies
Generator: The generator is built using high-performance rare earth neodymium permanent magnets, so the alternator is compact and light weight with a high power generating efficiency. The unique winding and multi pole design reduces the start-up torque of the alternator that assures the WINDMAX-H series can generate electricity at low wind speed. The generator features class B insulation, IP55 class protection, and is designed with a sufficient cushion of overload to ensure overall wind turbine reliability.
Generator housing is made with precision cast technology from high strength aluminum to assure a high quality finish. It is designed for various working conditions such as severe climate, sand and salt corrosive environments and marine usage. Aluminum die cast alloys can withstand the highest operating temperatures of all die cast alloys. Ideal for demanding environments, it offers high strength and rigidity along with good corrosion resistance and heat dissipation.
Patent pending Rotor Blade design vs. traditional hand made fiber glass blades: Our Blades are made with the latest thermoplastic engineering and injection mold technologies. The blades are made of mixed reinforced fiber glass and nylon materials. These manufacturing technologies ensure the highest strength, flexibility of blades and consistency of the blade shapes. The blades will automatically slow the turbine in strong winds and reduce noise.
A set of 3 Blades designed to capture as much wind energy as possible. Patented aerofoil blade design makes the system run much more efficiently and the rotor blades are made with the latest advanced thermoplastic engineering and precision injection molding technology.
The blades have exceptional consistency and aerodynamic outline with a mass distribution that ensures the rotors operate with nearly no noise and minimal vibration.
The blades feature lower start-up and cut-in speed and begin producing power at 2 m/s or 4.5 mph.
Solar/Wind Hybrid Charge Controller: A 16-bit microprocessor powered Solar/Wind Hybrid Charge Controller delivers electricity generated by both a wind turbine and a solar module into batteries. The controller has over-charge protection, low-voltage protection, pole-confusion protection and automatic dump-load function. The controller adopts the constant voltage charging mode-PWM, and it is reliable and safe with a highly efficient, long service life.
Main Features
1. PWM CV charging function protects the batteries
from being over charged and energy can be fully
utilized.
2.16-bit Microprocessor chip ensures accurate control.
3. Return difference control function in the charging
voltage detector of various circuits to prevent
vibration status of switches
4.Perfect protections: over charge protection, over
discharge protection, reverse connection protection,
solar cell panel reverse connection protection
5.Automatic brake and manual brake ensures that the
wind turbine and the PV & wind hybrid charging
controller operate safely and reliably
Starting at just $665.00 USD the new WindMax line offers great value to small wind turbine feild of entries and can be viewed at www.magnet4less.com
About the Author
Allen Wang has been in the magnet and wind energy industry since 2002.
Design (only the block diagram) an Armstrong indirect FM modulator?
Design (only the block diagram) an Armstrong indirect FM modulator to generate
an FM carrier with a carrier frequency of 98.1 MHz and Df = 75 MHz. A narrowband
FM generator is available at a carrier frequency of 100 kHz and a frequency
deviation of Df = 10 Hz. The stock room also has an oscillator with adjustable
frequency in the range of 9 to 10 MHz. There is a bandpass filter with any center
frequency, and only frequency doublers are available.
the below address is for the block diagram your looking for:
http://www.see.ed.ac.uk/~gjrp/EE3/Comms/Lecture10/sld006.htm
Diversified Technologies Introduces Power Distribution System for Renewable Energy Sources
BEDFORD, MA--(Marketwire - May 18, 2011) - Diversified Technologies, Inc. has introduced a new micro-grid power distribution system for the simple integration of wind and solar power generators by transmitting DC power along a cable which is suitable for up to 1 Megawatt power transfer. According to the firm, this new power distribution system offers a link cost as low as $1.00 per watt ...
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