Showing posts with label high. Show all posts
Showing posts with label high. Show all posts
Tuesday, December 24, 2013
Build a High voltage Bucking Regulator Circuit Diagram
This High voltage Bucking Regulator Circuit Diagram is basically tbe classic bucking regulator, except it uses a TMOS N-channel power FET for the chopper and creates its own supply for the gate control. Tht unique aspect of this circuit is how it generates a separate supply for the gate circuit, which must be greater than Vvv.
When power is applied, C2 charges, through D2, to +12 V. At this time, Q1 is off and the voltage at point A is just below zero. When the pulse-modulated signal is applied, the optoisolator transistors, Q2 and Q3, supply a signal to Q1 that turns it on. The voltage at point A then goes to Vvn. C2 back-biases D2, and the voltage at point B becomes 12 V above Vnn· After Q1 is turned on, current starts to flow through L1 into C1, increasing until Q1 turns off.
High voltage Bucking Regulator Circuit Diagram
The current still wants to flow through Ll, so the voltage at point A moves toward negative infinity, but is clamped by D1 to just below zero. Current flows less and less into C1, until Q1 turns on again. Q2 and Q3 drive Q1 `s gate between the voltages at point A and B, which is always a12 V swing, so Vcs max. is never exceeded. For proper operation, the 12-V supply has to be established before the pulse-width modulator signal is applied.
Sunday, December 22, 2013
The ultra high frequency broad band interference technology
The ultra high frequency broad band interference technology is adopted for mobile phone jammer .
mobile phone jammer should not exist within 300m around the school
Nokia mobile phone sales channels on a different phone model distribution rights, differentiated marketing. This would solve the contradiction between the different channel partners, resulting in
the difference between management In the long run, Nokia needs to make a variety of strategies to form a "combined" in order to maintain the sales of mobile phone products in the market. 2012
Chinese mobile phone industry development impact factor analysis? Favorable and unfavorable factors of the development of the industry (1) a favorable factor. The continued growth in demand for
mobile phones for the mobile phone industry in the development of a broad open space ITU survey results show that, with the continuous expansion of the global mobile communications network
coverage.The shielding range of this kind of mobile phone jammer is 0-70m.
Alternatives in many industries, enterprises will directly compete with other industries, production company. The existence of alternative products for the price of the products set the upper
limit, when the price exceeds the upper limit, users will switch to alternative products. When the cost reduction alternative to lower prices or the user to switch to alternative products,
alternative products competitive pressures will increase. In the current market competition, the phone is facing the challenge of other products. For example, in the city now, public phone, IC card
phone is more convenient and can be seen everywhere, on many occasions, and cheap calls to seize the opportunity to part of the low-income consumer phone. The technology of mobile phone jammer is
independently researched by the company.Here are the total positions of mobile phone jammer
This was in line with the situation of the domestic mobile phone. From 2006, major international mobile phone brands integrate their marketing channels, and increased efforts to develop low-end
mobile phone, a large number of thousand or even lower models, but this piece has been made mobile phones occupy the market has been broken.
Continue reading...
mobile phone jammer should not exist within 300m around the school
Nokia mobile phone sales channels on a different phone model distribution rights, differentiated marketing. This would solve the contradiction between the different channel partners, resulting in
the difference between management In the long run, Nokia needs to make a variety of strategies to form a "combined" in order to maintain the sales of mobile phone products in the market. 2012
Chinese mobile phone industry development impact factor analysis? Favorable and unfavorable factors of the development of the industry (1) a favorable factor. The continued growth in demand for
mobile phones for the mobile phone industry in the development of a broad open space ITU survey results show that, with the continuous expansion of the global mobile communications network
coverage.The shielding range of this kind of mobile phone jammer is 0-70m.
Alternatives in many industries, enterprises will directly compete with other industries, production company. The existence of alternative products for the price of the products set the upper
limit, when the price exceeds the upper limit, users will switch to alternative products. When the cost reduction alternative to lower prices or the user to switch to alternative products,
alternative products competitive pressures will increase. In the current market competition, the phone is facing the challenge of other products. For example, in the city now, public phone, IC card
phone is more convenient and can be seen everywhere, on many occasions, and cheap calls to seize the opportunity to part of the low-income consumer phone. The technology of mobile phone jammer is
independently researched by the company.Here are the total positions of mobile phone jammer
This was in line with the situation of the domestic mobile phone. From 2006, major international mobile phone brands integrate their marketing channels, and increased efforts to develop low-end
mobile phone, a large number of thousand or even lower models, but this piece has been made mobile phones occupy the market has been broken.
Saturday, December 21, 2013
Build a High Voltage Dc Generator Circuit Diagram
High Voltage Dc Generator Circuit Diagram. In the miniature high-voltage dc generator, the input to the circuit, taken from a 12-Vdc power supply, is magnified to provide a 10,000-Vdc output causing a pulsating signal, of opposite polarity, to be induced in Tl`s secondary winding.
The pulsating dc output at the secondary winding of Tl (ranging from 800 to 1000 V) is applied to a 10-stage voltage-multiplier circuit, which consists of D1 through D10, and C3 through C12. The multiplier circuit increased the voltage 10 times, producing an output of up to 10,000 Vdc. The multiplier accomplishes its task by charging the capacitors (C3 tlirough C12); the output is a series addition of the voltages on all the capacitors in the multiplier. In order for the circuit to operate efficiently, the frequency of the square wave, and therefore the signal applied to the multiplier, must be considered.
The output frequency of the oscillator (Ul-a) is set by the combined values of Kv Rr>, and C{ (which with the values specified is approximately 15 kHz). Potentiometer R5 is used to fine tune the output frequency of the oscillator. The higher the frequency of the oscillator, the lower the capacitivc reactance in the multiplier. Light-emitting diode LED1 serves as an input-power indicator, and neon lamp NE1 indicates an output at the secondary of Tl. A good way to get the maximum output at the multiplier is to connect an oscilloscope to the high-voltage output of the multiplier, via a high-voltage probe, and adjust potentiometer R5 for the maximum voltage output.
High Voltage Dc Generator Circuit Diagram
Friday, May 31, 2013
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Hbl2325sw Hubbell Wiring Devices Datasheet.
Tuesday, May 14, 2013
High Low voltage cut off with delay alarm
This straight forward circuit will protect electrical appliances from over voltage as well as under voltage.The circuit also produces an alarm when the power supply comes back.An ideal circuit for home to protect your valuable equipments from voltage fluctuations.The same circuit with some modifications can be used to make a automatic voltage stabilizer
When the mains voltage is in the normal level ,the voltage at the negative terminal of zener diode D4 will be less than 5.6 Volts.At this condition transistor T1 will not conduct.The same time voltage at the negative terminal of zener diode D5 will be greater than 5.6 and so the transistor T2 will be conducting.The relay will be activated and the green LED wil be glowing.
When the mains voltage is higher than the set limit the transistor T1 becomes conducting since the voltage at the negative terminal of D4 is greater than 5.6 V.At the same time transistor T2 will be non conducting which results in the deactivation of relay to cut the mains supply from load.When the mains voltage is less than the set limit transistors T1 & T2 becomes non conducting making the relay to de- activate and cut the load from mains.Ω
The timer NE555 is wired as a monostable multivibrator with a pulse width of 10ms.When the power comes back after a cut off a negative voltage is obtained at the trigger pin which triggers the IC NE555.The transistor T3 gets forward biased and it drives the buzzer to produce a beep as an indication of power resumption.Also the transistor T1 is made on which in turn makes T2 off.As a result the relay will remain de- activate for 10ms and this provides the sufficient delay and the equipment is protected from surge voltages.
* To calibrate the circuit a autotransformer is needed.Connect the output of autotransformer to the transformer primary.
* Set the voltage to 260V and adjust VR1 to make the relay deactivated.
* Now set the autotransformer to 160V and adjust VR2 so that the relay is de-energized.
* VR3 can be used to vary the volume of buzzer.
Friday, April 5, 2013
High Power Amplifier
This circuit of power amplifiers using a booster 8 sets sanken , the buffer using transistor D400 and B560 as much 2 sets , and to use part of the driver transistor B546/A940 and D401/C2168. And least 20 volts and the voltage to 70 volts maximum with three voltage is +,-,ground. Power Output 2 X 600 Watt with 8 Ohm Impedance.
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| Circuit audio amplifier 600 Watt |
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| Circuit of PCB so from 2 X 600 watts (looked down) |
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| Circuit of PCB (looked upon) |
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| The above is a circuit of ready to operate , just stay put booster. Source : link |
Tuesday, April 2, 2013
5000 Watts High Power Amplifier Schematic
Circuit Skema Rangkaian - High Power Amplifier has great advantages are 5000W ultra-light, high-power audio amplifier, without switching-mode power supply. This ambit is of an 2 x 2,500W RMS Stereo amplifier, super-light and after switching-mode ability supply. The ambit aloof shows a channel, and the ability accumulation that it assists to the two channels. The audio ambit should be duplicated, but the ability accumulation assists to the two channels after problems.
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| Circuit Skema Rangkaian Power Amplifier 5000W |
A adapted affliction should be destined to the careful agent of the audio line, that should be of audio-high-quality, of the blazon acclimated in microphone pre amps ascribe line. The accomplished accumulation (2 channels) of 5,000W RMS it should not counterbalance added than 32 lbs, already central of an adapted brownish box.
WARNING:
This ambit is alone for abecedarian use. It contains not-isolated genitalia of the electric AC net and it can be actual dangerous. The access for the speakers are not abandoned of the calm AC net and it requests added care. This action seeks to acting a accepted ability accumulation with abundant weight and amount reduction, after necessarily to use a switching-mode ability supply.
This action cannot be accustomed in some countries for commercial-use. The columnist doesn’t accept any albatross for the anatomy as that ambit it will be applied.
> Related High Power Amplifier
>> 2800W High Power Amplifier Circuit
>>> 3000W Stereo Power Amplifier
>>>> 1500W HiFi Power Amplifier Circuit
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