News
Changes to Windows Update
Microsoft announced it’s making big changes to the way Windows 10 updates. You’ll have much more control over the way Windows 10 installs updates—or not.
Specifically, Windows 10 will no longer automatically install big updates like the May 2019 Update and October 2018 Update every six months without your permission. Now, you’ll see a notification and it’s your choice when you want to install the update.
Don’t want to install the update? That’s fine. You can keep using your current version of Windows 10 for as long as it’s supported with security updates—that’s 18 months after release. But, once every 18 months, you will be forced to update to keep getting security fixes. This is much better than once every six months, and it gives you a lot more control.
On top of that, Microsoft will now let Home users pause updates—just as Professional users can—for up to 35 days. You must pause in seven day periods, but you can pause up to five times. And, after you check for updates in Windows Update, Windows won’t automatically install them—you’ll have a choice to pause the updates, if you like.
Why is dimming used?
1. Energy savings
- Daylight regulation – use of sunlight
- Occupancy control – lights on only when needed
- Task tuning – using the right level of light
- Load shedding – flexible energy use
2. Comfort
- Optimal light for task/scene – personal control
- Comfort and safety
- Ambient design
3. Increases the life of the light bulb
- reducing the wattage of the light source
- Less wear and tear of the light bulb
Dimming LEDs or Incandescents light in a lower voltage 12Volts or 24volts DC.
If dimming is required, PWM (Pulse Width Modulation) devices drive LED’s at their rated current in a variable pulse.
- For constant current drivers, these are always integrated.
- For constant voltage driver systems, these are in some cases integrated, however the system may require a remote PWM interface.
PWM controls the time averaged current through an LED, and therefore, the brightness of the LED source or sources. In the PWM method, LED current level is set and then turned on and off very quickly, typically faster than is perceptible by the human eye. The dimming of the LED is proportional to the duty cycle of the PWM waveform.
The Common Mains Dimming Protocols:
1) Phase Control
Leading Edge
Forward phase-control dimmers (also known as Leading Edge dimmers)
Trailing Edge
Reverse phase-control dimmers (also known as Trailing Edge dimmers)
2) 0-10V, 1-10V and 0-5V Analogue DC voltage to control dimmer lights
The first and simplest electronic lighting control signalling system. Using a low voltage 0-10V DC signal connected to each LED power supply, Dimmer or Fluorescent ballast. At 0 volts the device will dim to 0% which will turn the device off, at 10 volts the device will be operating at 100%. For Trailing Edge dimmers 0 volts dimmer will dim to 10-30% only.
1-10V is also available. As stated 1Volt – 10Volt indicates for external "Dimmer Pot" potentiometer.
Analogue dimming is considered “unidirectional” i.e. there’s no feedback from the interface device or ballast.
3) Digital Protocol: DSI
Digital Serial Interface, the precursor to DALI dimming systems uses a digital signal to DSI compliant devices, LED interfaces or electronic Fluorescent ballasts.
4) Digital Protocol: DALI
Digital Addressable Lighting Interface (now the most commonly utilised commercial lighting control system). This is non-propriety lighting protocol, in that DALI is available from many different suppliers.
Digital protocols can be “bi-directional” i.e. devices or lighting fixtures can exchange data or communication back through the system. This could be data on faulty lamp reports or the use of sensors to communicate to lighting directly or in groups. NB: This is not possible with a DSI system.
Each DALI device has a “non-volatile” memory which contains it’s own settings such as an address, group assignments, scene levels and fade rates. This capability allows a DALI to operate with and without a central control point.
Other (less commonly used) protocols:
Switch dimming – this is a stand alone digital dimming protocol. It’s commonly used in residential or hospitality systems. It’s a cheap solution for dimming signal fixtures (i.e. a single fluorescent fixture) as there’s no control system required.
DMX512 – DMX512 is a digital communication protocol used commonly in the stage lighting and effects industry. It’s more commonly used in the commercial lighting market to control RGB and RGBW (white) colour change lighting systems.
DMX512 system allows for complicated programming to communicate to DMX devices through a ‘Data Bus’. This digital communication is sent generally in a 8/16bit code packets instructing fixtures on everything from dimming levels to movement positions.
RGB and RGBW
For RGB we address each colour individually via a “channel”. By mixing these channels we can create multiple colour effects. With all colours at 100% this effectively creates white.
With RGBW, the white allows for each colour to be altered within its “hue”.
For more information please contact us.
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Small Home Appliance Solutions - Infineon Technologies
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Infineon Technologies Small Home Appliance Solutions
Infineon Small Home Appliance Solutions offer
many devices and solutions that fit into small home appliance
applications. There is a growing trend on style and more efficiency,
which designers are addressing with countless variations.
Energy-efficient, modern-looking, wipe clean, and hermetically sealed
surfaces are only a few characteristics that a design engineer has to
consider and incorporate into new designs. Infineon offers solutions for
several key areas such as induction heating, as well as appliances that
require motor control solutions with energy-efficient, integrated power
devices.
Small Home Appliance Solutions
Featured Products
Infineon Technologies Next Generation Reverse Conducting IGBTs
Combines the TRENCHSTOP™ family with the innovative reverse conducting RC-H IGBT technology.
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Infineon Technologies CIPOS™ Nano Intelligent Power Modules (IPMs)
Highly integrated power modules for high-efficiency consumer and light industrial applications.
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Infineon Technologies CIPOS™ Micro Intelligent Power Modules (IPMs)
Compact, three-phase IPMs for low-power (up to 450W with heatsink) motor drive applications.
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Infineon Technologies iMOTION IMC100 High-Performance Motor Control ICs
Integrate the hardware and algorithm for a Permanent Magnet Synchronous Motor (PMSM).
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Infineon Technologies iMOTION™ IMM100 Digital Motor Controllers
Smart IPMs implementing sensorless FOC of a permanent-magnet synchronous motor (PMSM).
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Infineon Technologies EiceDRIVER Isolated & Non-Isolated Gate Driver ICs
Gives the optimized low and high-voltage gate driver solutions for MOSFETs, IGBTs, and IGBT modules.
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Induction Heating Example
To create compact, highly-integrated designs, the F Series
Protected IGBT with TRENCHSTOP ™ RC-H5 technology for induction heating
application have been developed. The F Series device incorporates a
current sensing circuitry in conjunction with the existing current sense
resistor required in induction heating designs. This limits, cycle by
cycle, the resonant energy in the LC-tank and the peak turn-on current,
as well as limiting the maximum voltage across the IGBT.
An additional active voltage clamp sensed via a voltage sense
input, ensures the IGBT is not subjected to voltages beyond the
specified breakdown voltage. This control mechanism is an improved
version of a diode-based active clamp, actively turning the IGBT on to
dissipate the surge energy while maintaining a constant VCE.
To simplify the integration of the device into the existing mechanical
design of an induction heater, the F Series is offered in the TO-247
package of standard IGBTs.
Trenchstop F Series
Low Power Motor Control Example
The trend to more futuristic designs demand electronic solutions
with high levels of integration and innovative packaging, especially
when it comes to heat dissipation. To meet this challenge, there are
various levels of integration open to designers of motor control
solutions, such as integration of the gate driver and power stage IGBTs
or MOSFETs into a single device.
This is supported with the CIPOS™ IPM (Intelligent Power Module)
range of energy-efficient, integrated power devices. At the smallest end
of the scale, the CIPOS™ Nano series provides easy implementation of
3-phase or half-bridge motor control, while making use of the PCB copper
traces to dissipate heat from the module. This provides cost savings,
and in some cases, can eliminate the need for a heat sink.
Intelligent Power Modules
Hair Dryer Topology
How To Power
The fusion of the control solution and software for variable speed drive of permanent magnet motors:
Devices such as the iMOTION™ IMC100 provide a motor control solution
that can be parameterized to control the chosen motor without the
complexity of software development. Where space is at an absolute
premium, designers can also turn to the fully integrated iMOTION™ IMM100
Series. With this device, everything from the motor control through to
the gate drivers and power stage is integrated into a tiny 12x12mm
PowerQFN package.