100W Inverter Schematic Diagram

100W Inverter Schematic Diagram. An inverter will convert the DC voltage to an AC voltage. In most cases, the input DC voltage is usually lower than the output voltage of the inverter while the output AC is equal to the grid supply voltage 120 volts, or 240 Volts. Lets start it.

Simple 100W Inverter Schematic Diagram

Circuit Part List

Resistors
22K Resistor 3x
220 Ohm Resistor 2x
100 Ohm Resistor 1x

Diode
4007 Diode 1x
10V Zener 1x

IC
4047 IC + 14 Pin IC socket 1x

Capacitor
0.01uf capacitor 1x
100uf capacitor 1x

MOSFETS
IRF 3205 mosfet 2x

Varo Board

Transformer
Center Tap (CT) Transformer. Input 12-0-12, while the output refer to your standard home electricity (every county may different).

In the tutorial, it use 12-6-0-6-12 5 amp Transformer you can call it 120 VA transformer. You can use any kind of 12 -0-12 transformer.

Please take a note that this inverter can handle up to 100w of load but be careful, on the 100w of load you should use Heatsinks with those mosfets.

Sourced by :  Link

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Study Says, Android Auto and Apple CarPlay are more dangerous than texting

In recent years, mobile operating systems such as Android or iOS have gone from being simple phone systems to becoming the center of our digital lives, reaching devices such as television, watches or even the car itself.

Tools like Android Auto or Apple CarPlay promised to be a solution to avoid using the phone while driving, but it seems that the solution would not be much better than the original problem. Or, at least, is what this study suggests.

Android Auto and CarPlay are more distracting than driving using a mobile

Today it is prohibited to use the mobile phone while driving, as well as driving under the influence of alcohol or other substances. The objective of these prohibitions is none other than to avoid any cause that prevents us from losing concentration behind the wheel.

A new study could set a precedent against the systems that project the information from our mobile to the dashboard since they have shown very interesting information that shows that Android Auto and Apple Carplay could be one more danger behind the wheel.

In the IAM RoadSmart study, they compared reaction times, considering that the reaction time of a typical driver is one second.

Exceeding the alcohol rate, the reaction time was 12% slower, while after consuming cannabis the time increase to 21% more. And then we find mobile operating systems:

Smartphone:

•     Hands-free: 27% slower.
•     Typing: 35% slower.
•     Holding the mobile phone with your hands: 46% slower.
• 
  
•     Hands-free: 30% slower.
•     Touching touchscreen: 53% slower.

CarPlay:

•     Hands-free: 36% slower.
•     Touching the touch screen: 57%

The one that comes out worse in the comparison is Apple’s CarPlay.

Is this type of study valid?

Given this type of study, it is reasonable that we have several thoughts. There will be those who directly think that these systems are a danger and should disappear, while there will be people who do not feel that these systems become so distracting.

In the end it is something that depends a lot on the driver. These statistics should be a signal to the interface designers of these car systems. As much as there are users that the use of technology does not penalize their ability to react, there is a group of people who do, something that should serve as a warning to simplify these systems before it can lead to something worse.

Remember that the most important thing when driving is getting there, and that there is no message important enough to be misled behind the wheel. You will read it when you can make a stop or reach your destination.

Source :IAMroadSmart

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Simple Automatic Anchor Light Circuit Diagram

This is a Simple Automatic Anchor Light Circuit Diagram.Most of the cruisers do not use a masthead anchor light because the light is too high above the water level and actually makes it difficult to judge the position of the boat from just the anchor light, especially in a pitch-dark anchorage. That is why many people have devised their own forms of anchor lights that they stick lower to the deck on both sides of their boat.

Here is the circuit of a compact yet inexpensive automatic anchor light integrated with an ambient light sensor that turns it on and off automatically. This 12-volt LED light can be used as a traditional masthead anchor light and/or as an optional pretty clever custom-built anchor light. A typical commercial anchor light is shown in Fig. 2.

The circuit described here (refer Fig. 3) lets you control an electromagnetic relay so that it turns on a white LED light when the preset light level is reached and turns it off when a different preset level is reached. The circuit is built around NE555 IC (IC1). The 5mm light dependent resistor (LDR1) in the circuit triggers the 12V electromagnetic relay (RL1) as per the ambient light level. RL1 drives the 10mm white LED light source (LED2). Series resistor (R2) is included to limit the white LED current.

 Fig. 3: Circuit diagram of the anchor light

Note that switching threshold is determined by a 470k potentiometer (VR1) that causes the output to toggle with the preset threshold values. The light source (LED2) automatically switches on when it gets dark and switches off when there is sufficient ambient light. The 100µF capacitor (C1) provides a bit of hysteresis to prevent the circuit from jittering near the threshold level. The circuit is optimised for use with a nominal DC voltage of 12V drawn from any standard accumulator commonly used in boats.

Construction and testing

A single-side PCB pattern for the anchor light circuit is shown in Fig. 4 and its component layout in Fig. 5.

Fig. 4: PCB pattern of the anchor light circuit

Fig. 5: Component layout of the PCB

The circuit assembled on the small PCB can fit easily inside most prototype/custom enclosures, which should be waterproof for mounting on the masthead.

 Fig. 6: Suggested enclosure layout

 If possible, try to add some optics (lens and reflector) with the white LED (LED2) to spread the light outward. The 12V power supply input wires can then be connected to corresponding wires extending from the existing electric-points of the anchor light. Fig. 6 shows how the prototype may be assembled. Author’s prototype is shown in Fig. 7.

 Fig. 7: Author’s prototype

 Sourced By EFY : Authors name :T.K. Hareendran

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