KR20030088860A - Power module for generating impulses of various levels - Google Patents

Abstract

By using a combination of batteries and supercapacitors to provide an impulse, various all-in-one power tools driven by impulses are devised. The impulse can be used in three ways: by firing an object, by generating an impact force, and by forming a peak current of 100 A or more. While the supercapacitors greatly enhance the power output of the power module, the supercapacitors are placed in parallel for charging and switch to a series connection for discharging simultaneously with pressing the trigger of the tools. do. Therefore, the batteries required to drive the portable power tools can be minimized and reduced, and the circuit for operating the parallel-serial switch becomes simple and economical. Using the interchangeable attachments or accessories of the present invention, and the power module, one tool body can be applied to various types of work and maintenance at home or in the field.

Description

Power module for generating impulses of various levels

The present invention relates to a DC power module. More specifically, the present invention relates to a DC voltage source and supercapacitors connected in parallel to drive a variety of multi-functioning tools with interchangeable attachments and accessories for various tasks. It relates to a DC power module made.

In everyday life, there are many tasks that require a short pulse of overpower of force or energy to finish. For example, actions such as nailing wood, drilling holes in bricks, and igniting a lawnmower or a combustion engine in a car, all have peak power from the tool at critical moments when a large torque is required. Depends on An impulse generation method is disclosed in US Pat. No. 5,699,780 issued by Bissonnette, which uses a long elongated resilient windbag and fluids such as seawater to convert potential energy into kinetic energy at high speed. Harpoons to poke fish in the water are fired by preceding impulses. In addition, projectiles in the form of nails or staples are for example powered by a battery disclosed in US Pat. No. 6,173,877 as well as binding devices of US Pat. Nos. 4,986,713 and 5,818,186 and 6,086,304 It is fired from impulses generated by DC or AC power modules such as electric nailers and battery operated electric staplers of US Pat. Nos. 4,558,391 and 5,105,329. In general, DC power tools have no cord attachment and have unlimited convenience for any place, i.e., the DC power tools can be used at a location away from an urban power outlet, and can be used with an AC counterpart. They do not often experience voltage fluctuations. Moreover, the shock driven DC motor is larger than the AC powered motor because it is driven directly instead of gear driven, so that more positive torque from the motor to the striking piston is generated for the DC power tools. Have a stroke.

Instead of firing an object, the impulse energy generated by the DC power module is carving, chiseling, chopping, clinching, clipping, compressing, It can be converted into impact forces for crimping, crushing, embossing, piercing, punching, slicing, striking, and the like. Many patents and products already in use are available, for example US Pat. No. 4,015,671; 4,468,826; 4,579,029; 4,991,472; 6,427,559 and 6,460,627 all relate to battery operated hand-held tools. In operation, the necessary force is transmitted directly from the interaction between the piston and the elastic member (such as a spring). In a third manner of application, the impulse provided by the DC power module can be supplied directly by as much current for welding as disclosed in US Pat. Nos. 4,801,780 and 6,225,596. Using the battery as a power source for the welder, light maintenance or emergency repairs can be performed outside the range of urban electricity. Heavy batteries such as lead-acid (Pb-H ₂ SO ₄ ), environmentally hazardous batteries such as nickel-cadmium (Ni-Cd), or some such as nickel-metal hydride (Ni-MH) Batteries with memory-effects are employed in prior art portable power tools that are powered by impulse energy. To provide sufficient impulse, the batteries are often made up of large numbers in large sizes that make the tools bulky and heavy. In addition, the electrical circuitry for generating the necessary impulses makes the tools expensive. Existing batteries are rechargeable, but they are too low in energy content to supply in emergency time more often than they are not. Thus, users must wait several hours while charging the battery for tasks that can be completed in just a few minutes.

The present invention provides a DC power module that can be customized to supply the desired impulse energy using a minimum amount of battery and supercapacitors as well as a simple electronic structure. Moreover, primary cells, such as alkaline batteries, can be employed in the proposed power module. Power tools using the power module of the present invention are compact, light, economical and always available. Using the power modules of the present invention as interchangeable attachments or accessories, multi-purpose portable hand tools (hand tools) driven by impulse energy can be designed for a variety of tasks.

Based on energy conversion, impulse-powered handheld tools can be divided into three categories:

1. Tools use impulse and mechanical components to fire objects such as nails, staples, or pins to secure or bind;

2. Tools can be used for scraping, hammering, punching, embossing, chopping, chiseling, piercing, slicing or clipping. Uses impulse and mechanical components to provide impact force for;

3. The tools utilize impulses that directly supply an electrical surge or peak current to start the engine, weld metal, or operate the machine.

It is an object of the present invention to devise a method for generating the required impulse energy for conveniently and economically performing the operations or maintenance operations described above. While the above tasks require a wide range of power, all power needs can be performed by a general purpose power module consisting of supercapacitors and batteries connected in parallel via a control circuit.

Supercapacitors, also known as ultracapacitors and electrical double layer capacitors, are large static charge capacitors up to thousands of farads in a single small container. In essence, all of the charge stored in the supercapacitors can be discharged at once up to the enormous current useful for driving many power tools. Because the supercapacitors are light and compact, the tools operated with the capacitors are truly portable. Moreover, because supercapacitors can be manufactured at low cost in a variety of structures, the capacitors are frequently used step-up converters, inductors, to boost the power output of the battery. ) Or better than fly wheels. Due to the significantly higher power density of supercapacitors, the power output of any DC voltage source can be augmented by dozens of supercapacitors, even low-power devices such as primary cells. In the power module of the present invention, the electronic controller will adjust the power output level of the supercapacitors through pulse width modulation (PWM), but the batteries serve to charge the source for the supercapacitors. To achieve a long life, the batteries are always configured to discharge slowly. That is, the supercapacitors provide excess power needs that cannot be provided by the batteries, while the batteries handle all low-power needs. By releasing the batteries from providing a large power output, the voltage drop of the batteries is minimized and their use time is long.

Theoretically, in order to fully charge the supercapacitors, the batteries must have a voltage which is equal to or nearly equal to the voltage of the capacitors. Often many batteries must be placed in series to meet the target value of the charging voltage. As the number of batteries increases, the power module for the tools becomes bulky and expensive. The present invention utilizes individual supercapacitors for charging or supercapacitor packs connected in parallel. And, when an impulse is needed, all supercapacitors are instantly switched (switched) to a series connection for discharge. Charging supercapacitors in parallel reduces the number and size of rechargeable batteries. On the other hand, when the supercapacitors are discharged through a series connection, the capacitors can impulse twice the parallel structure voltage for portable tools. Only a trigger and an electromagnetic relay are needed to convert the supercapacitors from parallel to serial form instantaneously. The electronic control scheme is not only simple and economical, but also has little energy loss in power amplification of the battery.

For all three application modes of electric impulse, the tool body with interchangeable attachments or accessories, and with the power module of the present invention, can be a necessary tool that combines everything. In some cases, the replaceable attachments can be easily integrated into the tool body as disclosed herein. In other cases, the replaceable accessories may be provided in an auxiliary kit that carries a tool body for various tasks.

The above and other objects, advantages as well as features according to the present invention will become apparent from the following detailed description and the preferred embodiments in conjunction with the accompanying drawings.

1A is a side view of an electric nailer according to the present invention.

1B is a side view of an electrical stapler of the inventive power tool.

2 is a conceptual diagram illustrating a circuit composed of an impulse generating module and a DC voltage source, supercapacitors, and an electronic controller.

3A, 3B, 3C and 3D are side views of one hand-held body with interchangeable accessories for performing scraping, hammering, embossing, and punching, respectively.

4A, 4B, 4C and 4D are conceptual views of interchangeable accessories for starting (4b), spot welding (4c) and soldering (4d) one portable power supply 4a and a combustion engine, respectively. .

The accompanying drawings are included to provide a sufficient understanding of the present invention, and are incorporated in and constitute a part of this specification. The accompanying drawings show embodiments of the invention and together with the description serve to explain the principles of the invention.

Electronic hand-held devices and non-electronic hand-held devices are becoming popular and important in our daily lives. The devices must be compact and lightweight for easy transport and also have more than one function for many applications. For example, some mobile phones now weigh less than 100g and connect to the Internet in addition to voice communications; Moreover, some mobile phones can also take pictures like a digital still camera (DSC), which has the ability to instantly transfer pictures over the web. The smaller the size of the portable devices, the more options are added, and the load of batteries powering the devices is more weighted than before. In order to achieve the necessary modernization of portable devices, the energy and power density of batteries have been continuously and industrially improved. Nevertheless, advances in battery development are not always satisfactory. Thus, many energy conservation techniques, such as low power consumption processors, automatic sensors and standby mode systems, have been devised to compensate for the shortcomings of batteries. From the standpoint of manufacturing, installation and implementation, supercapacitors are one complete electronic component for managing the energy operation of batteries. The capacitors act as a power amplifier upon discharge of the supercapacitors, while the supercapacitors can act as an energy buffer or energy equalizer when charging the supercapacitors. The present invention utilizes supercapacitors to amplify the power output of batteries for driving various power tools without using converters, transformers, function generators or oscillating RLC circuits.

Figure 1a shows a first embodiment of the present invention of an electric nailing machine 100 operated with impulse energy firing nails or pins of various sizes for fastening, which consists of batteries and supercapacitors. Provided by the power module. Objects such as nails or pins are discharged from the discharge port 110 of the nailing machine 100 by a depressing trigger (trigger; 113), which is in a detachable compartment 111. It causes discharge of the deployed power module. The handle 112 provides the operator with a comfortable grip and operability of the electric nailer 100, while the tool body 114 is provided with a motor, gear and spring (not shown in FIG. 1A). It contains many of the same mechanical components. Using impulse energy in the power module, the motor will drive or pull the spring to its maximum position. When the spring returns to its original length, it will momentarily hit the nail or pin from the magazine and from the nailing machine 100 at the port 110 to perform fastening. In addition, there is an attachment 116 having an adjustment screw 115 mounted on top of the tool body 114 for performing functions other than fastening. As shown in FIG. 1B, by unscrewing and resetting the screw 115, the attachment 116 can be secured by being placed in a position where the clinching feet 122 are aligned with the discharge port 110, An electric stapler 102 is constructed. As soon as trigger 113 is pressed, U-shaped staples may be ejected from stapler 102 through a stack of paper placed between discharge port 110 and backing 122 for binding (not shown in FIG. 1B). After the staples are driven through a series of successive sheets of paper, it will stop at the base 122 glove, and both ends of the U-shaped staples overlap on the last page of the stack of paper to complete the binding operation. 1B also shows a number of slots in the replaceable attachment 116 designed to adjust the gap between the discharge port 110 and the base 122 in response to the thickness of the stack of paper to be bundled. 124). The nailing machine 100 and stapler 102 share the same source of power installed in the same tool body 114 and compartment 111 as well as the nails, pins and staples moving through the same trajectory barrel. Can be. The nailing machine 100 and the stapler 102 are replaceable via the attachment 116, whereby one tool can perform two functions.

2 is a preferred embodiment of the present invention for a power module 200 for generating an electrical impulse that can drive power tools to launch an object, form an impact force, and supply a peak current. Block 240 of FIG. 2 is designed to instantaneously drive the nailing machine 100 or stapler 102 described above, while block 260 is designed to impart a large current to a heavy load. Nevertheless, the supercapacitors 207 and 208 as well as the relay S1-S4 are shared in the blocks 240 and 260. Supercapacitors, also known as ultracapacitors and electrical double layer capacitors, 207 and 208 are large static charge capacitors up to thousands of farads in a small capacity single container. There is a power-level regulator of blocks 240 and 260 that selects a power output to adjust the workloads. By setting the switch 202 or the like, the block 240 is used, and the DC voltage source 201 charges the supercapacitor 207 through the contacts S1a and S1, and also the contacts S3a and S3. Via the supercapacitor 208 is charged. Diode 203 is to prevent reverse current flow from supercapacitors 207, 208 to DC voltage source 201. The contacts S1, S1a, S3 and S3a are four of the 12 contacts of the 4-port electromagnetic relay having S1 to S4 as common contacts. In addition, each port of the relay has four sets of the 12 contacts normally closed (S1-S1a, S2-S2a, S3-S3a and S4-S4a), and the other four sets are normally open (S1-S1b, S2-S2b, S3-S3b and S4-S4b), which have a single-pole double-throw (SPDT). During charging, the same-potential capacitors 207, 208 are connected in parallel, whereby the DC voltage source 201 may have a working voltage slightly greater than the voltage of the capacitors, but the DC voltage source 201 Will have a voltage much lower than the motor 209 driving voltage of the impulse-driven tools. As a result, the size and capacity of the battery 201 can be reduced. When the trigger 205 of the tools is pressed, the relay will switch from a closed state to an open state. From then on, capacitors 207 and 208 will discharge in series with motor 209, which will receive an electrical impulse of twice the voltage of each capacitor. After discharge, the supercapacitors will return to a parallel connection for charging. If the tools are used for maintenance and for the work of other power demands, the power-level selector 210 can fulfill that need. There are three power levels A, B and C for selecting the low power output, the medium power output, and the high power output, respectively. The power level is determined by the resistance values of resistors 222, 223 and 224. The lower the resistance value, the higher the power level will be. When switch 202 is at a1 and al ', DC voltage source 201 provides voltage to selector 210 via a1 point. After the battery voltage is divided into resistors 222, 223 or 224 and resistor 211, the partial voltage is supplied to the non-inverting input of differential amplifier 214. Next, by comparing the partial voltage with an internal reference voltage at the inverting input of amplifier 214, a differential voltage is generated as the output of amplifier 214, which is amplified by the ratio coefficient between resistor 213 and 212 resistance values. . The output of amplifier 214 then becomes the input voltage of pulse width modulator (PWM) 215. Depending on which level A, B or C is selected, the input voltage of the pulse width modulator 215 becomes correspondingly the low voltage, the medium voltage and the high voltage, and each of the resulting pulse widths generated by the PWM 215. Becomes narrow pulse width, intermediate pulse width, and wide pulse width. Following signals from PWM 215, the open time of N-channel field effect transistor (FET) 217, whose gate terminal is electrically connected to PWM 215, is a pulse generated by PWM 215. Is determined by triggering the width. In other words, the narrow pulse width, medium pulse width, and wide pulse width of the PWM 215 cause short open time, medium open time, and long open time of the FET 217, respectively. Finally, the open time of the FET 217 determines the motor 209 that accepts low level impulses, medium level impulses or high level impulses. As described above, power level control can protect against damage by force exceeding materials such as paper.

If switch 202 of FIG. 2 is placed at a2 and a2 ', block 260 is in use. The charging and discharging of the supercapacitors 207 and 208 of the block 260 is as described above except that the switch 240 is pressed in place of the trigger 205 for driving the relays S1-S4. Same as charging and discharging in block 240, step-up IC 219 switches supercapacitors 207 and 208 to series connection via relays S1-S3 for discharging. Is electrically connected to the DC voltage source 201 and in parallel with the supercapacitors 207, 208. The step-up IC 219 is provided by the DC voltage source 201 to ensure that the output power is always at a potential level above the drive voltage of the load electrically connected to the connector 221 before the operation is completed. It is employed in block 260 to raise the voltage supplied. The auxiliary power-amplification of the DC voltage source 201 by the step-up IC 219 acts as a backup to the supercapacitors to compensate for the rapid voltage drop upon discharge. Although power compensation is insufficient compared to the power output of supercapacitors, the auxiliary energy can be different in that it energizes extremely heavy loads such as starting up engine engines that have not been used for a long time. The DC voltage source 201 may be, for example, a primary cell, secondary cell, fuel cell, metal-air cell, solar cell, wind cell, suitable for charging the supercapacitor 207, 208. Or rectified AC power. In addition to electromagnetic relays, solid state relays (SSRs) or solenoids are applicable for switching supercapacitors. Moreover, the lifetime and power rating of the module 200 can be custom made to meet application needs. The complete balance between the battery and the supercapacitor is integrated in the power module 200, making it easy to provide a specific power density of 1KW / Kg or more in a compact size. Another prominent feature of the present invention is that, even though the supercapacitors 207 and 208 are selected to supply large power outputs that are not otherwise obtainable from the DC voltage source 201, the DC voltage source 201 minimizes the voltage drop and the use time. It is always maintained to discharge at low potential level in order to prolong.

3 is a conceptual diagram of an impulse drive tool and replaceable accessories according to a second embodiment of the present invention. The impulse drive tool utilizes the electric impulse provided by the power module 200 of FIG. 2 to release impact forces for various applications. When using replaceable accessories, a single tool body 306 equipped with a handle 305 and a removable compartment 308 containing the trigger 307 and power module 200 can be used as long as the replaceable accessories are available. Many things can be done. For example, a spade-head accessory 304 is secured to the drive head of the tool body 306 by means of a crew or other mechanism as a set means, and the electrical scraper of FIG. It is formed to remove various residues from the kind surface. Replacing accessory 304 with the hammering accessory of FIG. 3B, the electric hammer is assembled to crush the stone or to break the cement. Similarly, an embossed accessory engraved with an LED inscription as shown in FIG. 3C has a tool body 306 constituting an electrical embosser for writing letters on the surface of wood, plastic, and metal. Can be used in 3D illustrates a piercing accessory that may be used to build an electrical puncher with piercing power controllable by the power module 200 of FIG. 2. Obviously, as long as the accessory is operable at impact force and the accessory can be mounted to a tool body, such as reference numeral 306, the power module in compartment 308 will support the accessory to perform the intended function, thus being versatile. Power tools are born.

4 shows a conceptual diagram of a portable power supply and replaceable accessories according to a third embodiment of the invention. The portable power supply as shown in FIG. 4A may supply a peak current utilizing electrical energy provided by the power module 200 of FIG. 2. The portable power supply has a housing 408 containing the power module 200, a flashing light bulb 406 at one end, and an emergency light bulb 407 at the other end. Options other than illumination or signal may be installed in the power supply of FIG. 4A. On the surface of the housing 408 is a handle 409 for easy transport and switches 401, 402, 403, where the switch 401 is an on / off control switch of the power module 200, and the switch 403 is a switch for selecting illumination or signal 407, and switch 402 is for operating the functional block 260 of FIG. 2 such that the peak current is available for a large load as in FIGS. 4B-4D. Another power on / off control switch. In addition, there are two sockets 404 and 405 on the surface of the housing 408. Socket 404 is the outlet of the peak current provided by power module 200, while socket 405 is connected to an external power source to charge DC voltage source 201 of power module 200. Allow. 4B shows one male connector 416 on one side for plugging into a socket 404 for receiving peak current, and two alligator clamps on the other side for connecting to the plus and minus terminals of a car battery, respectively. An automotive-battery jumper 411 consisting of two jumping cables 412 and 413 with 414 and 415. When the ignition key of the vehicle is turned and the switch 204 of FIG. 2 is pressed, the power module 200 has sufficient voltage and current to start and maintain the spark ignition during cranking of the starter of the combustion engine. Will provide power with 4C is then shown in FIG. 4A via a plug 424 which gives time and current to control a circuit installed in compartment 421 when trigger 422 is operated by a hand grasping handle 423. It shows an electric welder accessory that can obtain peak current from a portable power supply such as the one shown. As trigger 422 is operated intermittently, peak current pulses are supplied to the tip of electrode 420 causing local fusion for spot welding. Similarly, FIG. 4D illustrates a soldering gun capable of obtaining peak current in a portable power supply such as shown in FIG. 4A via cable 432 and plug 434 for melting lead to make an electronic connection in a laboratory or field. (gun) represents an accessory. Finally, with interchangeable accessories as shown in FIGS. 4B, 4C and 4D, the portable power supply as shown in FIG. 4A can be a portable battery jumper, a portable spot welder, and a portable soldering machine, respectively. have. As long as a suitable accessory is available for attaching to the power outlet of the portable power supply, there is little limitation on the performance of the portable power supply. The power rating as well as the lifetime of the portable power supply can be adjusted by adjusting the energy capacity of the battery and the supercapacitor.

Examples of power modules are disclosed in the description below. The power module with the architecture 200 of FIG. 2 is configured by incorporating a lithium ion battery and a supercapacitor as the power module. There are eight 18650 Li batteries (18mm in diameter and 65mm in length), each of which has a rated voltage of 3.7V and a rated capacity of 2000mAh as well as similar internal resistances in a 2S4P structure. That is, to form a battery pack of 7.4V, 8000mAh, two batteries are connected in series first, and then four in parallel. In contrast, there are six supercapacitors, each of which has dimensions of 2.5V × 200F capacity and a diameter of 50mm and 75mm in length, grouped in two packs of three supercapacitors connected in series per pack. The two supercapacitor packs are connected in parallel for charging, but all capacitors are instantly switched to series connection for discharging. Using modules and accessories such as FIG. 4B, a peak current is provided to start up a vehicle of 2000cc and 3000cc engines, which are measured at 180A and 240A, respectively. The duration of the peak current is from 100ms to 500ms. At the same voltage as a conventional car battery, i. Such large power is not available in a 8000mAh Li battery pack. The current output of 240 A corresponds to the 30C discharge rate of the 8000 mAh battery pack, which would result in great risk if the Li-ion battery discharges at the same rate. Incidentally, the total weight of the power module and the housing is 1.5 kg, and the housing has a volume of 5280 ml (150 mm x 160 mm x 220 mm).

It will be apparent to those skilled in the art that various modifications and variations can be made in the structure of the invention without departing from the scope or spirit of the invention. In view of the foregoing, it is implied that the present invention covers modifications and variations of this invention provided they come within the scope of the claims and their equivalents.

As described above, the present invention provides an advantage that can be customized to supply the desired impulse energy using a minimum amount of battery and supercapacitors as well as a simple electronic structure.

Furthermore, according to the present invention, a primary cell such as an alkaline battery can be employed in the power module of the present invention. Power tools using the power module of the present invention are compact, light, economical and always available. Using the power modules of the present invention as interchangeable attachments or accessories, multi-purpose portable hand tools (hand tools) driven by impulse energy can be designed for a variety of tasks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the structure of the invention without departing from the scope or spirit of the invention. In view of the foregoing, it is implied that the present invention covers modifications and variations of this invention provided they come within the scope of the claims and their equivalents.

Claims (18)

In the power module, DC voltage source; A switching element electrically connected to the DC voltage source; A plurality of capacitors electrically connected to the switching element, the plurality of capacitors being connected in parallel for charging and switched to a series connection through the switching element for discharging; A switch electrically connected to the switching element for switching the switching element; And And a step-up IC electrically connected to the DC voltage source and connected in parallel with the capacitors in a mode in which the capacitors are switched to a series connection through the switching element for discharging. Power module. 2. The power module of claim 1, further comprising a power-level regulator electrically connected to the DC voltage source for controlling the power level of the power module output. The power level regulator of claim 2, wherein A plurality of resistors, one of which comprises: a plurality of resistors switched to be electrically connected to the DC voltage source; A pulse width modulator electrically connected to the resistors, the output of the pulse width modulator being controlled by switching one of the resistors to be electrically connected to the DC voltage source; And Wherein the gate terminal of the transistor comprises a transistor electrically coupled to the pulse width modulator for determining an opening time of the transistor and for controlling the output of the power module by an output of the pulse width modulator. Power module. The method of claim 1, wherein the DC voltage source is selected from the group consisting of primary cells, secondary cells, fuel cells, metal-air cells, solar cells, wind cells and rectified AC power. Power module, characterized in that the. 2. The power module of claim 1, wherein the switching element is selected from the group consisting of electromagnetic relays, solid state relays and solenoids. The power module of claim 1 wherein the capacitors are selected from the group consisting of supercapacitors, ultracapacitors and electric double layer capacitors. In the power module, DC voltage source; A switching element electrically connected to the DC voltage source; A plurality of capacitors electrically connected to the switching element, through which the capacitors are converted into a parallel connection for charging or a series connection for discharging; And And a switch electrically connected to the switching element for switching the switching element. 8. The power module of claim 7, further comprising a power-level regulator electrically connected to the DC voltage source for controlling the power level of the power module output. The method of claim 8, wherein the power-level regulator, A plurality of resistors, one of which comprises: a plurality of resistors switched to be electrically connected to the DC voltage source; A pulse width modulator electrically connected to the resistors, the output of the pulse width modulator being controlled by switching one of the resistors to be electrically connected to the DC voltage source; And Wherein the gate terminal of the transistor comprises a transistor electrically coupled to the pulse width modulator for determining an opening time of the transistor and for controlling the output of the power module by an output of the pulse width modulator. Power module. 8. The method of claim 7, wherein the DC voltage source is selected from the group consisting of primary cells, secondary cells, fuel cells, metal-air cells, solar cells, wind cells, and rectified AC power. Power module, characterized in that the. 8. The power module of claim 7, wherein the switching element is selected from the group consisting of electromagnetic relays, solid state relays and solenoids. 8. The power module of claim 7, wherein the capacitors are selected from the group consisting of supercapacitors, ultracapacitors and electric double layer capacitors. In the power module, DC voltage source; A first switching element electrically connected to the DC voltage source; A second switching element electrically connected to the DC voltage source; A plurality of capacitors electrically connected to the first switching element, the plurality of capacitors being connected in parallel for charging and switched to a series connection through the first switching element for discharging; A first switch electrically connected between the first switching element and the second switching element; A second switch electrically connected between the first switching element and the second switching element; And A step-up IC electrically connected to the second switching element, While the second switch is electrically disconnected from the DC voltage source, the capacitors are switched in series through the first switching element for discharging and the first switch switches the second switching element to switch the first switching element. In a first mode wherein the step-up IC is electrically connected to the DC voltage source and connected in parallel with the capacitors in a mode that is electrically connected to the DC voltage source through an element, and wherein the first switch is connected to the DC voltage source. A second, during which the step-up IC is electrically isolated from the DC voltage source and the second switch is electrically connected to the DC voltage source through the second switching element to switch the first switching element. In mode, the power module switches the first mode or the second module by switching the second switching element. A power module, characterized in that to switch to. 15. The power module of claim 13, further comprising a power-level regulator electrically connected to the DC voltage source for controlling the power level of the power module output. 15. The method of claim 14, wherein the power-level regulator is A plurality of resistors, one of which comprises: a plurality of resistors switched to be electrically connected to the DC voltage source; A pulse width modulator electrically connected to the resistors, the output of the pulse width modulator being controlled by switching one of the resistors to be electrically connected to the DC voltage source; And Wherein the gate terminal of the transistor comprises a transistor electrically coupled to the pulse width modulator for determining an opening time of the transistor and for controlling the output of the power module by an output of the pulse width modulator. Power module. The method of claim 13, wherein the DC voltage source is selected from the group consisting of primary cells, secondary cells, fuel cells, metal-air cells, solar cells, wind cells, and rectified AC power. Power module, characterized in that the. 14. The power module of claim 13, wherein the first switching element is selected from the group consisting of electromagnetic relays, solid state relays and solenoids. 14. The power module of claim 13, wherein the capacitors are selected from the group consisting of supercapacitors, ultracapacitors and electric double layer capacitors.