JP2004297992A - Power supply module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To output a pulse value expected by using a battery and a super capacitor for various works. <P>SOLUTION: This power source module is constituted by a DC voltage source, a switch set electrically connected to the DC voltage source, a plurality of capacitors electrically connected to the switch set to perform a charge in parallel and to perform a discharge by switching to series connection through the switch set, a switch electrically connected to the switch set to switch its condition, and a booster circuit electrically connected to the DC voltage source to be connected in parallel to a plurality of the capacitors when a plurality of the capacitors are switched to series connection through the switch set to perform the discharge. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a power supply module, and more particularly to a power supply module having a DC voltage source and a supercapacitor capable of driving a multifunctional tool having various kinds of replacement equipment.
[0002]
[Prior art]
In today's life, many devices need to be driven by overvoltage, short-pulse power supplies. For example, when driving nails into wood, drilling holes in stone, or driving a lawnmower or vehicle engine, they all require high torque operation, in which case the first time with a peak voltage, such as these Operation can be performed. As disclosed by Bissonnette in U.S. Pat. No. 5,699,780, a fluid, such as an elongated elastic bag and seawater, rapidly converts potential energy to kinetic energy to generate and generate pulses. A pulse can fire a harpoon, aiming at underwater fish. Also, nails or staples can be fired by pulses generated by a DC or AC power supply. For example, U.S. Pat. No. 6,173,877 discloses a battery driven electric nailer, U.S. Pat. Nos. 4,558,391 and 5,105,329 disclose a battery driven electric stapler, U.S. Pat. Nos. 4,986,713, 5,818,186 and 6,086,304 disclose binding devices. Generally, a tool driven by a DC power supply is very convenient because it does not require an electric wire and is not restricted by space, that is, it can be used in a place away from an outlet. Also, a tool driven by a DC power supply does not need to withstand voltage fluctuations, and a tool driven by an AC power supply must be able to withstand voltage fluctuations. Furthermore, since the impact provided by the DC motor is a direct drive and not a gear drive, the torque applied to the impact piston by the motor is more reliable for a tool driven by a DC power supply.
[0003]
In addition to being able to fire objects, pulse energy generated by a DC power supply can be converted into an impact force, which can be used to engrave, excavate, cut out, bend, pinch, press, wind, crush, stamp, punch, press, join, Many patents and commercial products capable of performing operations such as impact can achieve such operations, for example, U.S. Pat. Nos. 4,156,671, 4,468,826, 4,579,029, 4,991,472, Nos. 6427596 and 6460627 all relate to battery-powered tools. Operationally, the interaction between the piston and the resilient member (eg, a spring) can directly transfer the required force. In another application, welding can be performed by directly transmitting a large current by a pulse provided by a DC power supply, and is disclosed, for example, in US Pat. Nos. 4,801,780 and 6,225,596. . In addition to being able to use commercial power, batteries can be used as welding machines, light sources, and power sources for disaster recovery.
[0004]
Problems to be solved by the present invention
In the prior art, many portable electric tools that can be driven by pulses use a battery as a power source, and the battery is, for example, lead-sulfuric acid (Pb-H). ₂ SO ₄ ), A nickel-cadmium (Ni-Cd) battery, which is a source of concern for environmental pollution, and a nickel hydrogen (Ni-MH) battery having a memory effect. The tool itself is bulky because of the large size and the need to use a large number of batteries to provide sufficient pulses. Further, the electric circuit for generating the necessary pulses is complicated, which increases the manufacturing cost of the tool. In addition, although the above-described battery is a rechargeable battery, its storage capacity is reduced if used for a certain period of time, so that it cannot be used in an emergency. In such a case, no matter how long the user charges the battery, there is a possibility that the user can only work for a few minutes.
[0005]
Therefore, a first object of the present invention is to provide a power supply module that can output an expected pulse value using a small-capacity battery and a supercapacitor. Further, the power supply module according to the present invention can use a primary battery such as an alkaline battery. Furthermore, when the power supply module according to the present invention is applied to a power tool, there is an advantage that the power supply module can be made light, thin, short, and small, and can be easily carried. Therefore, if the power supply module according to the present invention is used and the replacement equipment is designed, it is possible to provide a multifunctional portable tool that can perform various different operations using pulse driving.
[0006]
According to the energy exchange method, the tools driven by pulse driving can be roughly classified into the following three types.
1. First-class tool: The object such as nails, staples, pins, etc. can be fired using a pulse and components to perform a joining operation.
2. Type 2 tools: Provide impact force using pulses and components to perform operations such as scraping, hitting, impacting, coining, notching, excavating, drilling, joining, pinching, etc. thing.
3. Class 3 tool: A tool that directly transmits a shock wave or a peak value current using a pulse and can start an engine, weld a metal, start various machines, and the like.
[0007]
A second object of the present invention is to provide a method for generating a necessary pulse so that the above-mentioned operation can be efficiently performed. It is to realize a required power supply by a power supply module having a super capacitor and a battery and connected in parallel to a control circuit.
[0008]
[Means for Solving the Problems]
In order to solve the above problems and achieve a desired object, a power supply module according to the present invention includes a DC voltage source, a switch set electrically connected to the DC voltage source, and electrically connected to the switch set. A plurality of capacitors that perform charging in parallel and perform switching by switching in series via the switch set; a switch that is electrically connected to the switch set to switch the state of the switch set; And a booster circuit connected in parallel to the plurality of capacitors when the plurality of capacitors perform discharge by switching in series via the switch set.
[0009]
[Action]
Supercapacitors (ultracapacitors or electric double-layer capacitors) can store large amounts of static charge, and thousands of farads can be stored in a single capacitor with a small volume. Since the electrostatic charge accumulated inside the supercapacitor can be discharged instantaneously, a huge current can be provided to drive the power tool. Because the supercapacitor is lightweight and compact, the tool driven by the supercapacitor is excellent in portability. In addition, the cost of manufacturing various types of supercapacitors is low, and the output voltage of the battery is increased by the supercapacitor as compared with the case of increasing the output voltage of the battery by a known boost converter, electric induction or flywheel. Is a better choice. Since the supercapacitor has a particularly large power supply density, it is possible to increase the output voltage of the DC power supply even if the DC power supply is a low power output means such as a primary battery. In the power supply module according to the present invention, the supercapacitor can be charged by the battery, and the voltage output form of the supercapacitor can be adjusted by the pulse width adjuster (PWM). Since the battery is discharged with small power in order to extend the service life of the battery, the need for low power can be satisfied by the battery, and the need for high power that cannot be obtained from the battery can be satisfied by the supercapacitor. By avoiding the large power output of the battery in this manner, the step-down of the battery can be reduced and the operating time of the battery can be extended.
[0010]
In theory, after the supercapacitor is fully charged, the voltage value provided by the supercapacitor will be equal to the voltage value provided by the battery. Therefore, an expected charging voltage can be obtained by arranging many batteries in series. However, as the number of batteries increases, the power supply module of the tool also becomes bulky. Thus, in the present invention, a number of separate supercapacitors or supercapacitor modules are connected in parallel to charge the supercapacitor. When providing a pulse, all supercapacitors are temporarily switched into a series state to discharge the supercapacitors. When the supercapacitors are charged in parallel, the size and quantity of the batteries can be reduced. When the supercapacitors are switched in series and discharged, the portable tool can be provided with twice the voltage that can be provided in parallel. Only when the trigger and the electromagnetic relay operate, the supercapacitor is temporarily switched from the parallel state to the series state, so that the electronic control circuit can not only have a simple and economical configuration, but also amplify the battery power. No energy loss occurs.
[0011]
In the present invention, the electronic pulse is applied to three types of implementation methods, and the tool body and the power supply module having the replaceable parts (equipment) attached thereto can be integrally disposed, and the replaceable parts (equipment) can be used as the tool. Can be easily attached to the main body. In addition, since the tool body and the replaceable parts (equipment) can be stored in the same tool box, necessary work can be performed by attaching necessary exchangeable parts (equipment).
[0012]
In today's everyday life, electronic and non-electronic portable devices are becoming more and more universal and important, and these portable devices must not only meet the requirements of being light, thin, short and small, but also be multifunctional. There is also. For example, despite the fact that the current weight of a mobile phone is less than 100 g, it has a digital still camera and a video camera function in addition to the function of transmitting sound, and it can be used for moving images via the Internet. Can even communicate. As the size of portable devices has become smaller and smaller, the weight of the batteries that provide power to the portable device has reduced the total weight of the portable device and its accessories. It is heavier than the weight. In order to adapt to the trends of the portable devices described above, the power density and power supply energy of the battery must be constantly improved, but since the research and development of the battery cannot always satisfy the current situation, many energy savings are required. It is necessary to reinforce the weak point of the battery by researching and developing the technology. For example, low power processors, automatic sensors and standby mode systems. From a manufacturing and assembly point of view, supercapacitors are the best for controlling battery energy to operate electronic components, and when the supercapacitor is in charge, it acts as an energy resistor or energy equalizer, Can act as a power amplifier when is in a discharged state. Thus, the present invention does not require the use of converters, switches, function generators or oscillating RCL circuits, and can drive various tools by amplifying the battery power output using a supercapacitor. You can do it.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments according to the present invention will be described with reference to the drawings. Referring to FIG. 1A, an electric nailing machine 100 according to a first preferred embodiment of the present invention will be described. The electric nailing machine 100 can perform a task of firing and fixing various nails or pins by pulse driving provided from a power supply module, and the power supply module includes a battery and a supercapacitor. When the trigger 113 is pulled, an object such as a nail or a pin is fired from the firing port 110 of the electric nailer 100. At this time, a power supply module (not shown) placed in the removable container 111 discharges. Perform the operation. A user can grasp and handle the power nailer 100 by gripping the handle 112, and the tool body 114 includes a number of mechanical means, such as a motor, gears and springs (none shown). Using a pulse provided by a power supply module (not shown), the spring is driven or compressed to a minimum position, and when the spring returns to its initial length, the electric nailer 100 instantaneously activates a nail or pin. And nails or pins are ejected from a cartridge (not shown), and are fired from a firing port 110 of the electric nailer 100 to perform a fixing operation. In addition, if the adjustment screw 115 and the fixture 116 on the front side of the tool body 114 are used, functions other than the fixing work are provided. In FIG. 1B, when the adjusting screw 115 is loosened to change the position of the fixture 116, and the adjusting screw 115 is tightened again, the bending table 122 comes directly in front of the firing port 110 to form the electric binding machine 102. When the trigger 113 is pulled, a U-shaped staple (not shown) is fired from the electric binding machine 102 and penetrates a sheet (not shown) stacked between the ejection opening 110 and the bending table 122, and the sheet is discharged. The stapled staples are bent at the bending table 122 so that the end of the stacked sheets can be fastened to perform the binding operation. In FIG. 1B, the slot 124 is for adjusting the distance between the firing port 110 and the bending table 122 according to the thickness of the stacked sheets. As described above, the electric nailing machine 100 and the electric binding machine 102 can share not only the same tool body 114 and the power supply module (not shown) placed in the removable container 111 but also nails, pins and staples. They pass through a common route. The present invention can provide one tool with two functions by using a method of switching between the electric nailing machine 100 and the electric binding machine 102 by the fixture 116.
[0014]
FIG. 2 shows a circuit configuration diagram of a power supply module 200 according to a preferred embodiment of the present invention. By supplying a pulse using the power supply module 200 and driving the tool, operations such as firing an object, providing an impact force, and transmitting a peak current can be performed. The electric circuit inside the block 240 can instantaneously drive the electric nailing machine 100 or the electric binding machine 102 described above, and the electric circuit inside the block 260 can provide a large current to drive a large load. Blocks 240 and 260 can share supercapacitors 207, 208 and relays S1-S4. The supercapacitors 207, 208 can be ultracapacitors or electric double layer capacitors, which can store a large amount of electrostatic charge and can store thousands of farads inside a small volume single capacitor. . The electrical circuits in blocks 240 and 260 include a power conditioner 230 that can control the power output of the power supply to match the workload. When the switch 202 switches to the state of a1, a1 ', the circuit in the block 240 is driven, and the DC voltage source 201 charges the supercapacitor 207 via the contacts S1a, S1, and the contacts S3a, S3. The super capacitor 208 can be charged. The diode 203 can prevent the current output from the super capacitors 207 and 208 from flowing back to the DC voltage source 201. The contacts S1, S1a, S3, and S3a are four out of twelve contacts of an electromagnetic relay having four contact ports, and the contacts S1 to S4 are shared contacts, and each connection port is a single pole double throw switch ( SPDT), four of the twelve contacts (S1-S1a, S2-S2a, S3-S3a, S4-S4a) are normally closed, and the other four (S1-S1b, S2-S2b, S3-S3b, S4-S4b) are always open. When charging the super capacitors 207 and 208, the super capacitors 207 and 208 can be connected in parallel, and the operating voltage provided by the DC voltage source 201 is slightly higher than the operating voltage provided by the super capacitors 207 and 208, The size and quantity of the DC voltage source 201 can be reduced because the driving voltage required by the motor 209 for pulse driving the tool can be much lower than the required driving voltage. When the trigger 205 of the tool is pulled, the relay switches from the normally closed state to the always open state, so that the supercapacitors 207 and 208 are connected in series and discharge to the motor 209. 208, which is twice the discharge voltage of any one of them. After discharging, the super capacitors 207 and 208 return to the parallel state again, and charge the super capacitors 207 and 208. If the tool must meet different power needs, the power selector 210 can meet the required needs. The power selector 210 has, for example, three power levels A, B, and C, and can select a small, medium, and large power output, respectively. Determined by the resistance value. The lower the resistance value, the higher the output power level. When the switch 202 switches from a1 to a1 ', the DC voltage source 201 supplies the power selector 210 via the contact a1. The voltage provided by the DC voltage source 210 is divided via one of the resistors 222, 223, 224 and then input to the non-inverting input differential amplifier 214. After comparing the input divided voltage with the reference voltage inside the differential amplifier 214, a differential voltage is generated at an output terminal. The differential voltage is amplified by the resistance ratio between the resistors 213 and 212. The output terminal voltage of the differential amplifier 214 is the input voltage of the pulse width adjuster (PWM) 215. Based on the selected power levels A, B, and C, the input terminal voltage of the pulse width adjuster 215 is low, The pulse width is generated by the pulse width adjuster 215 at one of the medium, high, and three levels. The N-channel field effect transistor (N-channel FET) 217 controls the activation time of each of the N-channel field effect transistors 217 based on the small, medium, or large pulse width output from the pulse width adjuster 215. . Low, medium, and high three-level pulses received by the motor 209 can be determined by the activation time of the N-channel field effect transistor 217. The power regulator 230 described above can protect a material such as paper from being damaged by excessive force.
[0015]
When switch 202 switches from a2 to a2 ', power supply module 200 switches to using block 260. During the switching operation to block 260, the charging and discharging of the supercapacitors 207 and 208 are performed by the circuit in block 240 as described above. During the switching operation to block 260, the relays S1 to S4 are driven by the switch 204, not by the trigger 205. The booster circuit 219 is also electrically connected to the DC voltage source 201, and when the supercapacitors 207 and 208 are switched to series connection via the relays S1 to S3, the booster circuit 219 is connected in parallel with the series connected supercapacitors 207 and 208. Electrically connected. The booster circuit 219 can increase the voltage provided from the DC voltage source 201, and the boosted voltage can drive a load electrically connected to the connector 221. By amplifying the power of the DC voltage source 210 by the booster circuit 219, the power can be used as a backup power supply for the super capacitors 207 and 208, and a rapid step-down during discharging of the super capacitors 207 and 208 can be compensated. When compared to the power output of the supercapacitors 207, 208, the power output of the standby power supply is negligible, but is provided when driving a heavy load, for example, when starting up a vehicle whose battery has run out of electricity. Electricity will be useful. The DC voltage source 201 is, for example, a primary battery, a secondary battery, a fuel cell, a metal-air battery, a solar battery, a wind battery, a rectified AC power, etc., all of which are suitable for charging the supercapacitors 207 and 208. . In addition, the types of the relays S1 to S4 are not only electromagnetic relays but also solid state relays (SSR) or solenoids, and any of them can switch the state of the supercapacitors 207 and 208. The power supply module 200 according to the present invention can satisfy the above application needs. Since the DC voltage source 201 and the supercapacitors 207 and 208 are balanced in the power supply module 200 at the time of discharge, the power supply module 200 can provide a specific power density within its dimensions, for example, 1 kW / kg or more. it can. Another advantage of the present invention is that the DC voltage source 201 can maintain discharge at a low voltage, so that the step-down of the DC voltage source 210 can be reduced and the use time of the DC voltage source 201 can be extended. In addition, the super capacitors 207 and 208 can provide a large power output that cannot be achieved by the DC voltage source 201.
[0016]
FIG. 3 shows a pulse-driven tool and equipment according to a second preferred embodiment of the present invention. The pulse-driven tool can perform various operations by using a pulse provided by the power supply module 200 illustrated in FIG. 2 to provide an impact force. The tool main body 306 includes a handle 305, a trigger 307, and a removable container 308 capable of storing the power supply module 200, and various kinds of work can be performed by attaching a replaceable component to the tool main body 306. When the spatula-type fixture 304 is attached to the driving means of the tool main body 306, an electric scraper can be configured as shown in FIG. 3A, and an operation for removing surface residues can be performed. If the hammer-type fixture 304 shown in FIG. 3B is used to change to the spatula-type fixture 304, an electric hammer drill can be used to hit stone or concrete. If the stamping-type fixture engraved with the LED shown in FIG. 3C is attached to the tool body 306, it becomes an electric stamper and can perform an operation of stamping wood, plastic, or a metal surface. If the tip-type fixture shown in FIG. 3D is attached to the tool main body 306, it becomes an electric drill, and the drilling operation can be performed by the power supply module 200 shown in FIG. As described above, the impact can be provided to the replacement equipment, and only by fixing the replacement equipment to the tool body 306, the replacement equipment is driven by the power supply module 200 in the removable container 308 to perform the necessary work. It can be carried out.
[0017]
FIG. 4 shows a third preferred embodiment of the present invention. The portable power supply and its fixtures can provide peak current with the power supply module 200 shown in FIG. The portable power supply shown in FIG. 4A includes a housing 408. In addition to housing the power supply module 200 inside the housing 408, a flash lamp 406 is housed at one end in the housing 408 and used for an alarm. At the other end, an emergency lamp 407 is stored and used for illumination. In addition to the alarm and lighting functions, the portable power supply has other functions. A handle 409 is located above the housing 408 so that the portable device power supply can be easily carried. In addition, three switches 401, 402, and 403 are provided on the surface of the housing 408, and the switch 401 can be used to open and close the power supply module 200, and the switch 402 is used to start or stop the block 260 in FIG. When the block 260 in FIG. 2 is activated, the portable power supply can provide peak current to perform heavy load operations. Two outlets 404, 405 are provided on the surface of the housing 408, and the outlet 404 is a power outlet of a peak current provided by the power supply module 200. The outlet 405 is electrically connected to an external power supply to charge the power supply module 200. The operation like the DC voltage source 201 can be performed. The vehicle battery connection line 411 shown in FIG. 4B has two connection lines 412, 413, and a connection head 416 is provided at one end of the connection lines 412, 413, and is inserted into the outlet 404 to supply the peak current. The two alligator clips 414, 415 are provided at the other ends of the connection lines 412, 413, respectively, and can be connected to the positive and negative ends of the battery, respectively. When the engine is started by turning the key of the automobile, turning on the switch 204 in FIG. 2 allows the power supply module 200 to provide sufficient voltage and current to maintain the ignition of the electric fireworks. 4C activates the trigger 422 when the handle 423 is grasped by hand, so that the peak current output from the portable power supply in FIG. Supply to current control circuit. When the trigger 422 is activated intermittently, a peak current is output to the tip of the electrode rod 420 and the tip of the electrode rod 420 melts to enable a welding operation. The welding gun 430 shown in FIG. 4D receives the peak current output from the portable power supply in FIG. 4A via the electric wire 432 and the plug 434 to melt the welding rod, thereby enabling a welding operation. . 4B, 4C, and 4D, the portable power supply in FIG. 4A can be replaced with a portable charger, a portable engine starter, or a portable welder, respectively. Can be. However, the use of the portable power supply is not limited to these, and when the appropriate equipment is connected to the power outlet of the portable power supply, the portable power supply has another use. be able to. Further, by controlling the energy storage values of the DC voltage source and the supercapacitor, the output power and the usage time of the portable power supply can be adjusted.
[0018]
Next, another embodiment of the power supply module will be described. The power supply module 200 shown in FIG. 2 can be composed of a lithium battery and a supercapacitor. For example, eight lithium batteries having a model number 18650 (radius 18 mm, length 65 mm) have a 2S4P structure, that is, a battery having a 2 If the four sets of batteries are in parallel, one at a time, and each lithium battery can provide, for example, 3.7 V, and has a capacity of 2000 mAh and a comparable internal resistance, then the DC voltage source 201 Can provide a voltage of 7.4 V and have a capacity of 8000 mAh. Also, the power supply module 200 can include six supercapacitors, divide these six supercapacitors into two sets, and one set connects three supercapacitors in series, and each supercapacitor has two supercapacitors. It has a capacity of 0.5 V × 200 F, its diameter is 50 mm and its length is 75 mm. At the time of charging, two sets of supercapacitors are connected in parallel, and at the time of discharging, they are temporarily switched to series connection. Utilizing this power supply module and the replaceable equipment shown in FIG. 4B, it is possible to provide a peak current of 180 A or 200 A, and to start a vehicle with an engine displacement of 2000 cc or 3000 cc, respectively. The maintenance time ranges from 100 ms to 500 ms. Since the conventional car battery is 12V, the power supply module of this embodiment must provide at least 2.16kW to 2.88kW of power, but such large power can be achieved only with the 8000mAh lithium battery pack. Can not do it. The power output of 240A is equal to the discharge rate of 30C of a lithium battery pack of 80000 mAh, which would have disastrous consequences if only lithium batteries were to be discharged. Further, the total weight of such a power supply module and the housing is 1.5 kg, and the housing has a volume of 5280 ml (150 mm × 160 mm × 220 mm).
[0019]
As described above, the present invention has been disclosed by the preferred embodiments. However, the present invention is not limited to the embodiments, and can be easily understood by those skilled in the art. Since changes and modifications can be made, the scope of patent protection must be determined based on the claims and equivalents thereof.
[0020]
【The invention's effect】
According to the above configuration, the power supply module according to the present invention can output an expected pulse value using a small-capacity battery and a supercapacitor. Therefore, if the power supply module according to the present invention is applied to a power tool, it is light and thin. It has the advantage of being short and small and easy to carry. If it is designed to use the power supply module according to the present invention and adopt replacement equipment, a multifunctional portable tool that can perform various different operations by using pulse driving. Can be developed. Therefore, the industrial use value is high.
[Brief description of the drawings]
FIG. 1A is a side view showing an electric nailing machine according to the present invention, and FIG. 1B is a side view showing an electric binding machine according to the present invention.
FIG. 2 is a circuit diagram showing a circuit configuration of a power supply module according to the present invention.
FIG. 3A is an explanatory view showing an electric tool of the present invention, and FIGS. 3B to 3D are explanatory views showing replaceable equipment.
FIG. 4A is an explanatory view showing a portable power supply of the present invention, and FIGS. 4B to 4D are explanatory views showing replaceable equipment.
[Explanation of symbols]
100 Electric nailing machine
102 Electric binding machine
110 launch port
111 Removable Container
112 handle
113 Trigger
114 Tool body
115 Adjustment screw
116 Equipment
122 bending table
124 slots
200 power module
201 DC voltage source
202, 204 switch
203 diode
205 Trigger
207, 208 Super capacitor
209 motor
210 Power selector
211, 222 resistance
214 differential amplifier
215 Pulse width adjuster
217 Field Effect Transistor
219 Boost circuit
221 connector
230 power regulator
240 blocks
304 Spatula-type equipment
305 handle
306 Tool body
307 trigger
308 Removable container
401 switch
404 outlet
406 flash lamp
407 Emergency lamp
408 housing
409 handle
411 Battery connection line
412 connection line
414,415 clips
416 connection head
420 electrode rod
422 trigger
424 outlet
430 welding gun
432 electric wire

Claims (4)

A DC voltage source;
A switch set electrically connected to the DC voltage source;
A plurality of capacitors that are electrically connected to the switch set, perform charging in parallel, and perform switching and discharging in series through the switch set.
A switch electrically connected to the switch set to switch a state of the switch set;
A booster circuit electrically connected to the DC voltage source, the booster circuit being connected in parallel to the plurality of capacitors when the plurality of capacitors perform discharge by switching in series via the switch set. Characteristic power supply module. A DC voltage source;
A switch set electrically connected to the DC voltage source;
A plurality of capacitors that are electrically connected to the switch set, perform charging in parallel, and perform switching and discharging in series through the switch set.
And a switch electrically connected to the switch set to switch a state of the switch set. The power supply module according to claim 1, further comprising a power regulator electrically connected to the DC voltage source to control an output voltage of the power supply module, wherein the power regulator includes:
A plurality of resistors electrically connecting one to the DC voltage source;
A pulse width adjuster electrically connected to the plurality of resistors, selecting one of them and electrically connecting to the series voltage source, and controlling an output thereof;
A gate is electrically connected to the pulse width adjuster, and includes a transistor that determines, according to an output of the pulse width adjuster, its operation time and output power for controlling the power supply module. Power module. A DC voltage source;
A first switch set electrically connected to the DC voltage source;
A second switch set electrically connected to the DC voltage source;
A plurality of capacitors electrically connected to the first switch set, performing charging in parallel, and switching in series to discharge through the first switch set;
A first switch electrically connected between the first switch set and the second switch set;
A second switch electrically connected between the first switch set and the second switch set;
A booster circuit electrically connected to the second switch set,
By switching the second switch set, one of a first state and a second state can be selected,
When switching to the first state, the booster circuit and the DC voltage source are electrically connected, and when the plurality of capacitors are switched in series via the first switch set and discharged, the booster circuit Is in parallel with the plurality of capacitors, the first switch set switches the state of the first switch set via an electrical connection between the second switch set and a DC voltage source, and the second switch set and the DC voltage source Turn off the electrical connection between
When switching to the second state, the electrical connection between the booster circuit and the DC voltage source is turned off, and the second switch set is connected via the electrical connection between the second switch set and the DC voltage source. A power supply module, wherein a state of the first switch set is switched, and an electrical connection between the first switch set and a DC voltage source is turned off.

Images