Lit Motors Unveils Self Balancing Electric Vehicle C 1

Introducing the C-1, the world’s first gyroscopically-stabilized “rolling smart phone”. This vehicle combines the efficiency and freedom of a motorcycle with the safety and convenience of a car. Offering the “alternative to alternatives” on an exciting and safe platform, the C-1 transforms your daily commute into something to look forward to. Influenced by Scandinavian design, the exterior of the C-1 is both approachable and simple, enveloping the human in subtle curves, softened volumes, and lots of glass.

The overall design foundation is based on its waist line, which wraps around the vehicle’s circumference, and is grounded by the swooping rocker panel, highlighting its unique gyroscopic components. Discs of light glow from the wheel hubs, illustrating the electric hub motors. With design key words: “subtle”, “simple”, and “human”, the C-1 is as happy to be seen as it is to be touched.

The C-1 was designed with you in mind. Lit Motors’ human-centered approach to design makes sure that the experience of sitting in such a unique transportation device is both comfortable and spacious. Through numerous mock-ups and user studies, we determined how much space people want and need. There is even enough room in this device for a friend to ride in the back for short city excursions.

Using electronically-controlled gyroscopes located under the floor – generating over 1,300 ft.-lb. of torque – the C-1 balances at a stop and stays upright, even in a collision. In-hub, direct-drive electric motors (20 kW) provide power and regeneration, while center-hub steering keeps you pointed in the right direction. With a top speed of 100+ MPH and battery packs providing up to 200 miles per charge, the C-1 is perfect for commuters and city dwellers alike. As we are hard at work developing this concept for production, please be patient for the future. Expect to see the C-1 in showrooms by the end of 2014.

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10Mhz to 1 MHz Frequency Converter

10Mhz to 1 MHz Frequency Converter Circuit

Part ListIC1 7404 = 1
IC2 7490A = 1
R 1 K = 2
R 3.3 K = 1
C Trim Polymer 39 pF = 1
C Electrophoresis 4.7 uF 16V = 1
C Milar 47 nF 16 V = 1
C Milar 10 nF 16 V = 1
C Ceramic 68 pF 50 V = 1 

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2 5A 1 25 To 25V Regulated Power Supply Circuit Diagram

This power supply uses an LM317J adjustable regulator and an MJ2955 pass transistor. Ql and U2 as well as Ul should be heats inked. A suitable heat-sink would typically be 4` 4` 1` fins, extruded type, because up to 65 W dissipation can occur. R8 and R9 should be 1% types or selected from 5% film types with an accurate ohmmeter. Capacitors are disc ceramic except for those with polarity marked, which are electrolytic. D1, D2—1-A, 100-PIV rectifier diode. DS1—Red LED. F1 —1,5-A, 3AG fuse in chassis-mount holder. J1, J2—Standard five-way binding post, one red, one black. M1—Milli-ammeter, 0-1 mA dc. Q1—NPN power transistor MJ2955 (Radio Shack) or equiv device with a + 70-V, 10-A, 150-W rating in a -204 case. R1, R2, R7—5-W wire-wound resistor. See Notes 3 and 4 for source, or, use 17 inches of no. 28 enam wire, single-layer wound, on a 10-KOhmhm, 1-W carbon-composition resistor for R1 and R7. For R2, use 36 inches of no. 30 enam wire on a 10-KOhmhm, 1-W carbon composition resistor (scramble wound). R-4—Panel-mount, 5-kfi, 2-W or 5-W potentiometer, carbon or wire wound (See Note 8). R8, R9—See text. 51—SPST toggle switch. 52—DPDT toggle or rotary wafer switch. T1—25.2-V, 2.75-A power transformer (see text). U1—6-A, 200 PIV bridge rectifier with heat sink. See text. U2—LM317T +1.25- to 30-V, 1.5-A 7-220 regulator. Use an LM317HVK (T0-204 case) for dc output voltage greater than 40. See text.

2.5A-1.25 To 25V Regulated Power Supply Circuit Diagram

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1 5V Battery operated FM Transmitter

1.5V Battery operated FM Transmitter

This accomplishing is acclimatized to rebroadcast the achievement of a CD player, television receiver, or radio receiver. I use it so that I can move about the abode and accept to my admired programs after advancing others. Within and the house, I acquisition that I can get 10 to 20 meters abroad from the transmitter with the baby abridged FM receiver I backpack in my shirt pocket. Your breadth may vary.

The transmitter as congenital and pictured beneath (the transmitter is in the balloon of hot cook cement on the end of the array holder) does not accept an on-off switch. I put a 1.5 AA corpuscle that was run bottomward too far to run my CD amateur in this transmitter and it ran for over a ages afore I replaced it. The one in the transmitter at this moment has been active it continuously for over three months. Current draw is alone about a milliamp with a new array (assuming you dont accept a super-high beta transistor in which case the abstract absolute is about 2.5 ma). An on-off swich is not necessary, admitting it may amuse an affecting need.

Tips to get it working: Wind the braid on a 4 or 5 mm bore Philips brand screwdriver or agnate anatomy again blooper it off. I acclimated some vinyl cloistral #24 amalgamation wire as able-bodied as #30 enameled wire. In both cases, I played with the breadth of the braid to tune the transmitter to a asleep atom on the FM band. The braid is captivated in abode with hot cook glue. If you dont accept a spectrum analyzer or abundance meter, use a good-quality FM receiver to accomplish abiding its acquainted area you anticipate it is. While adjusting the coil, accumulate in apperception that all superheterodyne receivers accept images. If you acquisition that two or added adjustments accomplish the transmitter appearance up on the aforementioned atom on the receiver, it ability be all-important to booty a abbreviate airing and acquisition out which acclimation drops out aboriginal -this would be the image, because the receivers advanced end (if it has a acquainted advanced end) will abate its acuteness to the image.

Many kinds of transistors will assignment accomplished in this application. After all, its alone an oscillator (frequency accentuation is acquired my modulating the base-collector voltage, thereby modulating the abyss of the burning band of the reverse-biased base-collector junction, which after-effects in a change in capacitance at the collector, which after-effects in a change the beating abundance of the beneficiary circuit.). I acclimated an 2N4401 because I accept a lot of them. I like 2N3904 and MPSH34 for this too.

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1 W Home Stereo Amplifier Rise

This is a one watt home stereo amplifier module project using the KA2209 IC from Samsung, which is equivalent to the TDA2822. It operates from 3-12V DC & will work from a battery since the dormant current drain is low. It requires no heat sink for normal use. The input & output are both ground referenced. Maximum output will be obtained with a 12V power supply & 8 ohm speaker, however it is suitable for driving headphones from a supply as low as 3V.

The Specifications of the home stereo amplifier :

D.C. input : 3 – 12 V at 200 – 500 mA max
Idle current : approx. 10 mA
Power output : > 1 Watt max. 4-8 ohms, 12V DC
Freq. Resp. : approx. 40 Hz to 200 kHz, 8 ohm, G=10
THD : < 1 % @ 750 mW, 4-8 ohm, 12V
Gain : approx. x10 (20 dB) OR x100 (40dB)
S/N ratio : > 80 dB, G = 20 dB
Sensitivity : < 300 mV, G = 20 dB
Input Impedance : approx. 10 k ohm

Description 

The gain is adjustable from ten to 100, i.e. twenty to 40 dB. Start with feedback resistors R1 and R3 of 1k ohm, this will give a gain of ten which ought to be adequate for most applications. In case you need more gain, you can remove resistors R1 and R3.This will give a gain of about 100, or 40 dB.The input attenuation can be adjusted by the potentiometer which can be used as a volume control. The IC gain ought to be kept as low as necessary to accomplish full output, with the in put potentiometer and your signal source at maximum.

Voltage Gain = 1+ R1/R2 = 1+R3/R4, however the maximum gain with no outside feedback is about 100, or 40dB. (GdB = 20log Gv)

This will keep the signal to noise ratio as high as feasible. Additional gain provided by the amplifier will reduce the S/N ratio by a similar amount, since the input noise figure is constant. Other values for R1 and R3 of between 1k and 10k ohm can be used if an intermediate gain level is necessary.

If driving a pair of headphones, you may also need a 100 ohm resistor in series with each output to reduce the output level, depending on headphone impedance & sensitivity. Make positive you start with the volume right down to check. Numerous headphones may be driven from the amplifier in the event you wish, since most headphones have at least 16 ohm impedance, or more often 32 ohm.

There are only a few outside parts, the IC contains most of the necessary circuitry. R1,R2 and R3,R4 are the feedback resistors. C1 provides power supply decoupling. C2 and C3 are the input coupling capacitors, which block any DC that might-be present on the inputs. C4,C5 block DC in the feed back circuit from the inverting inputs, and C6,C7 are the output coupling capacitors. C8, R5 and C9,R6 act as Nobel networks providing a high frequency load to maintain stability at frequencies where loud speaker inductive reactant may become excessive. The pot provides adjustable input level attenuation.

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