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Differential Driver
Differential Driver

Differential Driver

This is a tiny upgrade module for our PWM-OC10A units which allows them to work more efficiently at higher frequencies and to give a more square output.
The device can be fitted so that it boosts the signal or it can also be used to boost and invert the signal so that the output phase is inverted.

Click here for the MBST-DIF1A Datasheet
Quantity Available: 90
Item Price: £7.99



Power Pulse Modulator
Power Pulse Modulator

Power Pulse Modulator

This is a multifunction variable pulse generator. It is designed to fit a wide range of applications and be fully adjustable so that it can be used for many different tasks. This is designed to be low cost so that multiple units can be used to complete a variety of tasks, or so that the same board can be used in numerous different projects or experiments where several different devices might normally be needed. The modules can be linked together in a master/slave setup, and the pulse width can be adjusted by an external analogue source.

Features and Specifications
NB: Figures may vary under different loading conditions and environments.
Input 9 to 12V 10A (120W)
Power Output - 9 to 12V DC Square wave 10A
Continuous/average output current up to 2.5A
Short pulse currents up to 30A
Open collector output allows for use of separate voltage source for pulses.
Independent frequency and pulse width / duty cycle controls.
Frequency adjustable between 1Hz and 100kHz (Includes 2 capacitors for different frequency ranges)
Pulse width fully adjustable between 0% and 100%
EMI Transient / Motor Load indicator
ESD and Transient suppression included

Need a different spec? Customization available from £14.99 or check below for standard customizations.

Example Applications

Pulse Width modulation (PWM) Motor Speed Control
Pulse Width Modulation (PWM) is used to accurately control the speed of DC motors. The pulse frequency can be adjusted to match your motor for performance or reducing noise. The speed of the motor can be adjusted using the preset on the board, or it can be attached another variable voltage source such as the analogue output from a micro controllers or similar device.
Hydrogen Production (Electrolysis)
Simple control over reaction rates with PWM control. It
can switch large currents for direct connection to
electrodes or use of transformers with widely adjustable
frequency for impedance matching and resonating
systems.
Dimming or Flashing of LED's and Light bulbs
This module can be used to smoothly dim lights or make them flash at regular intervals. The brightness is adjusted by a pulse width modulated signal which can be set to and inaudible frequency.
Tone Generator for small or large speakers
This circuit generates an adjustable square wave signal that is powerful enough to drive anything from piezoelectric sounders to large bass speakers. The frequency range can be adjusted between sub bass and ultrasonic levels.
Transformer Driver
Works with inductive loads like transformers for inverter projects or high voltage power supply's. 12V operation allows it to drive autotransformers, induction or ignition coils.

Click here to download the PWM-OC10A datasheet
Quantity Available: 2
Power Pulse Modulator - £39.99
Power Pulse Modulator KIT - £29.99
Power Pulse Modulator High Power - £149.99
Item Price: £39.99



Resonant Signal Generator
Resonant Signal Generator

Resonant Signal Generator

This tiny module provides a compact and low cost variable square wave signal source.

The device has an output for direct use of the signal and also includes a second output which can be used for matching the resonant frequency of LC (inductor-capacitor) circuits such as Tesla Coils.

Input: 9V
Output: Adjustable frequency square wave 270 Hz – 1.8 MHz
Frequency range depends upon fitted timing capacitor. You can extend the range using your own capacitors.
Squareness of wave reduces with increasing frequency. At top frequency range, output is sine wave.

Click here to download the datasheet
Quantity Available: 11
Item Price: £12.99



Coil Disc
Coil Disc (1.4 uH)

Coil Disc (1.4 uH)

Flat Spiral PCB Inductor

This flat spiral coil has 9 turns of 2mm copper track. Each end of the coil has a solder pad for connecting to wires or other coils.

Inductance - 1.4 uH
Resistance - 0.2 ohms
Diameter - 5 cm
Thickness - 1.6mm

Two coils can be placed together for making flat transformers or charging pads for robots and other projects.
Quantity Available: 30
Coil Disc (1.4 uH) - £2.99
Coil Disc (40uH) - £2.99
Item Price: £2.99



AM Adapter
AM Adapter

AM Adapter

This is a tiny adapter which can be used to convert a varying voltage into a varying resistance. It is designed for use with our Power Pulse Modulators so that they can be Amplitude Modulated.
The amplitude can be modulated digitally (on-off) for signal gating or it can be modulated with an analogue signal such as audio. It is even sensitive enough to respond to voltage induced by human touch.
Click here to download the datasheet
Quantity Available: 76
Item Price: £1.99


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