صوت سنج 5LED

مدل: (IC KA2284)
وضعیت: ناموجود
برند: Chinese class 1

صوت سنج 5LED

IC KA2284

KA2284 Voltage Level Indicator Module

Module provides a logarithmic visual indication of a static or dynamic voltage level using LEDs.

DESCRIPTION

The KA2284 Voltage Level Indicator Module provides a logarithmic visual indication of a static or dynamic voltage level using LEDs.

PACKAGE INCLUDES:

  • KA2284 Voltage Level Indicator Module

KEY FEATURES OF KA2284 VOLTAGE LEVEL INDICATOR MODULE:

  • Uses KA2284 5-Dot LED Level Meter Driver w/ built-in rectifying amplifier
  • Adjustable voltage range with LED display
  • Use with AC or DC voltages
  • 3.5 to 16V operation

The module can be used to indicate a voltage level such as for monitoring a DC battery level or for use with AC signals to implement a VU meter for audio strength or similar applications.

The module uses the KA2284 LED Dot Level Meter Driver IC to implement a  logarithmic LED dot indicator display.  The display consists of 5 LEDs – 3 green, 1 yellow and 1 red which are lit in sequence as the input voltage increases.

A single-turn potentiometer is used to set the range for the display.

The input for the voltage measurement includes a series capacitor for use with AC waveforms.  There is a small jumper on the board which shorts this capacitor so that the module can be used with a DC signal such as when monitoring battery.

  • Jumper OFF = Monitor AC voltage
  • Jumper ON = Monitor DC voltage

The module can be powered off a wide voltage range of 3.5 to 16V

Module Connections

There is a 4-pin header on the assembly for making connections.

1 x 4 Header

  • VCC = Connect to 3.5 to 16V
  • IN = Input.  The voltage to be measured by the device
  • GND = Ground.  There are 2 ground pins, but only one needs to be used
  • GND = Ground.  There are 2 ground pins, but only one needs to be used

OUR EVALUATION RESULTS:

These modules work as advertised and can be useful for monitoring some types of voltages and are a very inexpensive way to experiment with VU meter type applications.

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