Home » Tag Archives: Converter (page 2)

Tag Archives: Converter

dBm – Conversion Table dBm Watts x x Volts

Conversion Table dBm Watts x x Volts

The dBm sometimes called dBmW or decibel-milliwatts is an abbreviation for the power ratio in decibels (dB) the measured power referenced to one milliwatt (mW) ( see Conversion Table below ). It is used in RF and fiber optic, as a convenient measure of absolute power because of its ability to express the very large values ...

Continue reading..

Turning the LED Wide Voltage Range – 5 Volts a 30 Volts

Turning LED Wide Voltage Range

To connect the LEDs and prevent queimem, we have to limit the current, usually between 10 a 30mA (depending on the LED), and a resistance that is required in the circuit. However it has a drawback, the resistance value should be calculated for a fixed value of voltage. An example is a red LED (1,8Volts x 20mA) connected in 12Volts, resistance would be ...

Continue reading..

Converter 9 Volts Multimeter to read the very Source

Converter 9 Volts para Multimeter

    Multimeters with LCD displays that use integrated circuits ICL7106 or similar AD converter, which typically use batteries 9 Volts, can not perform measurement of own source. The problem is that we must have a separate power supply for 9 volt sound elements for. The alternative is a converter 9 Volts effectively powered by a floating source. It ...

Continue reading..

Circuit Inverter 110V x 220V Low Power

Inverter circuit 110V x 220V Low power

  All though most of the current sources are bivolt, but imagine that old appliance, What is 220V, and you go to a location that the voltage is 110V. An example of a device that may have this problem is a shaver, which can be used 220V / 240In. This simple voltage doubler ...

Continue reading..

Inverter Circuit for High Performance Lamp Fluorecente

Inverter Circuit for High Performance Lamp Fluorecente

  Here is the solution for those who have fluorecentes lamps with burned reactors and want to enjoy and building a low-cost and high-performance inverter. This circuit works on the lamps fluorecentes 5 a 40 Watts, which may be a tubular or even economical circuits having their burn. The circuit bera the 100% efficiency, ...

Continue reading..

DC Converter Circuit – DC 12V to 24V 2A

DC Converter - DC 12V to 24V 2A

O circuito Conversor DC/DC tem a função de converter uma tensão A para uma tensão B, geralmente maior, ai está dificuldade. Quando trabalhamos com tensão AC (AC), já existe uma oscilação, geralmente 60Hz, assim se aplicarmos esta tensão um transformador facilmente iremos diminuir ou aumentar esta tensão. Isto não ocorre na tensão DC (corrente contínua), como ela não oscila, ...

Continue reading..