FIELD OF INVENTION
This invention relates to a power backup system with foot cranking. The present invention provides a high capacity power source which can provide a constant power backup to the various equipments/devices and can be charged mechanically.
BACKGROUND & PRIOR ART
Portable electronic devices are used for performing various useful functions in a variety of devices such as (i) communications devices (ii) portable computing devices (iii) military electronic devices, and (iv) other items such as digital cameras, camcorders, global position satellite devices, portable electronic games, flashlights, radios, and audio CD/MP3 players. Some electronic devices have become critically important for public safety such as emergency service on mobile telephones, or global position satellite devices for general aviation and marine use.
One common element in all these portable electronic devices is their requirement for portable electrical power. This has been traditionally solved by using assemblies of chemical batteries, either the one time use disposable batteries (such as alkaline, zinc-air), or the multiple use rechargeable batteries (such as nickel-cadmium, nickel-metal-hydride, lead-acid, lithium-ion).

The alternating current is essential for charging a high capacity battery. In a remote location, it becomes very difficult to provide sufficient electricity to charge the high capacity batteries which can be used in high capacity power sources or in any other electrical device. The electronic devices can only be truly portable if their power sources are always available in the field. Disposable batteries have a finite capacity. One option is to carry a sufficient supply of spare disposable batteries. However, each of the electronic devices can have a different power requirement with different voltages and currents. As a result thereof, the user may be required to carry different types of batteries. Further, on a long trip or a mission, the user may have to carry multiple sets of backup batteries. Moreover, the used batteries create a significant waste problem because they often contain toxic chemicals such as lead or mercury. As a result thereof, in many situations, it is not practical to carry sufficient spare batteries.
Reference may be made to the following prior arts:-
US patent no 7,402,915 concerns pedal generators for generating electrical current. The invention provides a pedal generator having a single foot operated pedal, and spring biased means for converting oscillatory movement of the pedal into drive for an alternator. The mentioned patent does not provide a integrated system which has both generation and provision of power backup
US patents 7,049,708 and 6,930,403 are directed to power source that is powered by a user. The crank assembly includes a one-way drive mechanism that couples the crank assembly to the rotor component. The one-way drive mechanism inhibits rotation of the crank output relative to the rotor input when the crank output is rotated in a first rotational direction and allows for rotation of the crank output relative to the rotor input when the crank output is

rotated in a second rotational direction that is opposite from the first rotational direction. The mentioned patents does not provide a integrated system which has both generation and provision of power backup
US patent no 6,291,900 relates to the effective generation, conversion and utilization of electrical energy generated by manually powered mechanisms. The present invention includes a manually powered apparatus for converting mechanical energy to electrical energy. The manually powered apparatus provides a crank. A spring drive is mechanically coupled to the crank. The spring drive has the capability of releasing mechanical energy and the spring drive has first and second unwind cycles. . The mentioned patent does not provide a integrated system which has both generation and provision of power backup
Publication no GB 2334154 discloses electricity generation for peddled vehicles particularly improvements in the generation of electricity by pedal power and its use in contributing to road safety. There is provided electricity generating apparatus for a vehicle equipped with pedals, such as a bicycle, 'wherein at least one said pedal comprises a spindle and a tread portion relatively rotatable about the spindle, electricity generating means mounted upon the tread portion and transmission means between the spindle and generator such that for each revolution of the spindle relative to the tread portion the generator undergoes more than one revolution. . The mentioned patent does not provide a integrated system which has -both generation and provision of power backup

Publication no JP11008941 (A) relates to charge a battery any time as long as there is a required power source, even in the case that the residual quantity of the battery runs short during running by accommodating a charger and a charge system of battery in a drip proof case, and mounting it on a bicycle. . The mentioned patent does not provide a integrated system which has both generation and provision of power backup
Publication no WO2005039917 (Al) A multifunction electric bicycle which can generate electric power has a speedup generating electric power device at the bottom of the frame, and a solar charging device at the rear luggage carrier. The principle of the pedal type speedup generating electric power device is that, the pedal rotates a driving rear, the driving gear engages with a reduction gear, the reduction gear engages with a speedup gear in turn, and the speedup gear engages with an engine gear. During riding the bicycle, the power can be transmitted to the motor constantly, then the motor generates electric power to charge batteries until gain the service voltage. . The mentioned patent does not provide a integrated system which has both generation and provision of power backup
US publication no 20070252453 discloses machines for converting . human-source mechanical power to electrical power. The present invention resembles a stationary bicycle without a seat. The invention can be placed in front of a chair in which a person is sitting. The person can place their feet on the exemplary pedals of the exemplary embodiment, and pedal. The exemplary pedals are mounted on respective exemplary pedal arms, which are in turn mounted on opposing ends of a first axle. When the person pedals, the mechanical motion of the person's pedaling is exerted on the first axle that

extends through the first geared sprocket wheel. A sprocket chain connects the first geared sprocket wheel to a second geared sprocket wheel. The second geared sprocket wheel has a diameter that is smaller than the diameter of the first geared sprocket wheel. . The mentioned patent does not provide a integrated system which has both generation and provision of power backup
Publication no JP9207865 discloses an assist power control device which is equipped with a driving circuit for supplying the electric power of a battery to a traveling motor, a control circuit for controlling the driving circuit, a pedaling force sensor for detecting the period T of human power from the change of the pedaling force FL by a pedal, and a vehicle speed sensor detecting a vehicle speed (v). . The mentioned patent does not provide a integrated system which has both generation and provision of power backup
Publication no JP8048279 relates to the power bicycle. The invention makes a control signal of voltage generated by a pedaling force on a step-on pedal to control a motor while connecting a generator to a battery to charge. A generator is rotated by a force of a shaft rotated by stepping on a pedal to generate electric power. The generated electric power is supplied to a battery and controller. The electric power generated by the battery and a control signal of the controller are supplied to a motor to controllably rotate the motor with a specific rotational frequency. The rotation of the motor is reduced by a reduction gear to be supplied to a rear wheel. The controller is composed of a microcomputer which is connected to the motor through a current detecting circuit. The electric power is thus generated according to a force for stepping on the pedal to charge the battery through a resistor and at the same time to feed the power to lamps or the like and warning device or the like.

Also, some technical problems are associated with the conventional power system, which are current distribution, malfunctioning, low efficiency and capacity. The prior art systems have general shortcomings and do not adequately address the aforementioned problems. Some of the available inverters do not have monitoring 8B controlling software interface. The problem faced by using these inverters is that when the battery goes low, it abruptly shuts down the system connected to it. This results in the loss of data & system failure.
Hence, a means is required for efficiently operating power inverters, with a feature of mechanical battery charging. This design must also be cost effective to manufacture, implement and allow for easy incorporation into the current designs. Thus, a high capacity power system, with mechanical battery charging which can eliminate the need of AC current for battery charging, is required.
In light of the above, there is the need for an efficient portable device to produce electrical energy in the field. Additionally, there is aneed for a high capacity power source for back-up that can be used to generate output current and voltages to a wide range of different electronic devices with their various battery chemistries and power needs. Moreover, there is a requirement for a power source for backup that is relatively easy and efficient to use and control. Further, there is a need for a power source that reduces user fatigue.
In order to overcome the above listed prior art, the present invention provides a power source which provides a power backup to the various devices and can be charged by foot cranking. The input of manual energy from the user's foot instead of the hand allows for greater input of energy with less apparent effort. The current invention integrates the charging through the foot cranking within an inverter which can be then used to run AC loads etc.

OBJECTS OF THE INVENTION
Primary object of the present invention is to provide a power backup system with foot cranking.
Yet another object of the present invention is to provide a very efficient and cost effective inverter/ UPS for heavy duty applications.
Still another object is to provide a power backup system with foot cranking which is a pedal generator.
Yet another further object of the present invention is to provide a power backup system with foot cranking for various battery chemistries and power needs.
Further object of the present invention is to provide an improved high capacity power source for back-up and control method to facilitate a high quality 8B low output total harmonic distortion operation.
Further object of the present invention is to reduce the failure rate of the power source and increase the total reliability.
Still another object of the present invention is to provide local monitoring and a hand held device based remote monitoring.
Further object of the present invention is to provide real time management for inverter using real time communication media or hand held device.

Yet another object is to provide communication with PC for monitoring, setting and data logging of various system parameters for analysis of system performance and power quality etc.
SUMMARY
The present invention is directed to an improved high capacity power inverters/ UPS having means by which electrical energy can be generated mechanically. Such devices can be used to charge high capacity batteries of electronic equipment and can also enable the equipment to be charged without electricity. The present invention is having provision to provide the load or battery with the optimal power that gives a pleasant usage profile of the human user. The control system monitors temperature, revolutions per second, the voltage and current over time to compute the torque within the generator and amount of charge delivered.
The present invention also provides local monitoring, Web/Mobile phone based remote monitoring and real time management for the inverter using internet or a mobile phone. The power source is also provided with the connectivity through communication media. It provides connectivity of power source to the internet without a computer. Using this, the user can monitor 85 control the product from a remote location with the help of hand held device. Present invention provides real time management using real time communication for an inverter connected to a computer. The inverter installed anywhere in the world can be centrally monitored and controlled by the user.

The input of manual energy, according to the present invention, from the user's foot instead of the hand allows for greater input of energy with less apparent effort. Typically, foot operation is less intrusive than requiring manual operation through hand cranking. By means of the present invention, electrical energy can be generated manually. Such devices can find application in any equipment normally using electrical power from batteries. Such devices can be used to charge the batteries of electronic equipment and then provide backup to the load.
In another embodiment of the present invention, the power source can be such as but not limited to inverter, uninterrupted power supply.
In still other embodiment of the present invention, any device which is run by the secondary storage device can be charged through the present invention.
In another embodiment of the present invention, the battery used in the present invention can be any kind of a battery
In another embodiment, the DC-DC converter section can be an isolated DC-DC converter.
STATEMENT OF INVENTION
According to this invention, there is provided a power backup system with foot cranking comprises foot cranking input block, DC-DC converter block, power supply and signal conditioning circuits block along with DC to AC conversion section connected to each other provided with foot pedals to crank the internal mechanical generator which converts the mechanical energy generated by the foot cranking

to electrical energy as DC voltage wherein the generated DC voltage is provided as input to said DC-DC converter section.
BREIF DESCRIPTION OF THE FIGURE
Further objects and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawing and wherein:
Fig 1A shows the block diagram of the power backup system of the present invention.
DETAIL DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING DRAWING:
Reference may be made to fig. 1, which shows the block diagram of the power backup system. The system comprises foot cranking input block, DC-DC converter block, power supply and signal conditioning circuits block along with DC to AC conversion section. The user can use the foot pedals provided to crank the internal mechanical generator which converts the mechanical energy generated by the foot cranking to electrical energy as DC voltage. The generated DC voltage is then provided as input to the DC-DC converter section. The DC-DC converter section controls the output voltage and current and provides the charging current to battery. The DC-DC converter section has protection so that there is no power flows from the battery to the cranking system.
The invention is used to charge high capacity inverter and enables the equipment to be charged without electricity. An improved high

capacity power inverter and control method facilitates high quality and low output total harmonic distortion operation of single phase power inverters. Although isolated gate bipolar transistor (IGBT) power switches are preferred in high voltage inverter applications, other power switches used in the lower voltage applications (FET's for example) can also be adopted. The present invention makes decisions for provision regarding the load or battery with the optimal power that gives a pleasant usage profile of the user.
The present invention provides local monitoring and Web/Mobile phone based remote monitoring as well as real time management for inverter using internet or mobile phone. The power source also has the connectivity through GSM device. It provides connectivity of the power source to the internet without a computer. Using this, the user can monitor & control the product from a remote location using his mobile phone.
The crank assembly includes a drive mechanism that couples the crank assembly to the rotor component and a crank output which is rotated by the user. The crank assembly, when operated by a user, causes the resulting clockwise or counterclockwise rotation of the gear assembly. Power source works in both directions.
The present invention takes the voltage/current from the stepping power source and makes decisions based upon input from multiple factors to provide the load or battery with the optimal power that gives a pleasant usage profile of the human user. The control system monitors temperature, revolutions per second, the voltage, and current over time to compute the torque within the generator and amount of charge delivered.

It is to be understood that the above-described embodiments are illustrative of only a few of the many possible specific embodiments, which can represent applications of the principles of the invention. However, numerous and varied other arrangements can be readily devised in accordance with these principles by those skilled in the art without departing from the spirit and scope of the invention.

WE CLAIM:
1. A power backup system with foot cranking comprises foot cranking input block, DC-DC converter block, power supply and signal conditioning circuits block along with DC to AC conversion section connected to each other provided with foot pedals to crank the internal mechanical generator which converts the mechanical energy generated by the foot cranking to electrical energy as DC voltage wherein the generated DC voltage is provided as input to said DC-DC converter section.
2. A power backup system with foot cranking as claimed in claim 1, wherein the DC-DC converter section controls the output voltage and current and provides the charging current to battery
3. A power backup system with foot cranking as claimed in any of the preceding claims, wherein the system reduces the failure rate of the power source and increases the total reliability.
4. A power backup system with foot cranking as claimed in any of the preceding claims, provided with a high capacity power source for back-up with mechanical generator which is a pedal generator.
5. A power backup system with foot cranking as claimed in any of the preceding claims, wherein the DC-DC converter section has protection to avoid power flows from the battery to the cranking system.
6. A power backup system with foot cranking as claimed in any of the preceding claims, wherein the system makes decisions for provision regarding the load or battery with the optimal power that gives a pleasant usage profile of the user.
7. A power backup system with foot cranking substantially as herein described with reference to the accompanying drawing.