Abstract: In one embodiment, a method is provided for a power converter system. The method includes: automatically configuring the power converter system to operate with burst mode functionality if a control module of the power converter system is coupled in a first arrangement; and automatically configuring the power converter system to operate without burst mode functionality if the control module of the power converter system is coupled in a second arrangement.

Abstract: A hand-held electric sealer with a detachable sealing module includes a casing, a sealing module, and a press bar. The casing includes, among others, a front contact holder which is provided with an engagement hole. The sealing module includes, among others, a lower cover from underside of which extended an engagement piece. The engagement piece of the sealing module can be engaged with the engagement hole of the casing, such that the sealing module can be conveniently attached to, or detached from, the casing, and that replacement of a damaged sealing module can be readily achieved. In addition, for the sealing module dual heating wires may also be employed so as to obtain a desirable sealing effect to plastic bags.

Abstract: A hand-held electric sealer with dual heads includes a seat, a sealing module, a press cover, a supporting casing, and a battery cover. The seat has a central engaging rod and a first replacement element. The sealing module can be attached to, or detached from, the seat. The press cover includes a central engaging piece, a heat insulation block, and a second replacement element. Through engagement of the central engaging piece with the central engaging rod, the press cover can be selectively swung to press the heat insulation block against the sealing module, or to press the second replacement element against the first replacement element. The first replacement element and the second replacement element can be substituted with an appropriate module element upon demand on various functions.

Abstract: An improved sealing mechanism includes a heat insulation base, a heating portion, and a compression spring, where the heat insulation base has a left side part, a middle part, and a right side part. The heating portion includes at least two heating wires equidistantly spaced from each other a certain distance, a left locating plate and a right locating plate, where the heating wires are, at both ends, electrically connected with the left locating plate and the right locating plate, respectively. The left locating plate and the right locating plate of the heating portion are engaged with the left side part and the right side part of the heat insulation base, respectively, such that the heating wires are positioned at the middle part of the heat insulation base.

Abstract: A tea maker, having a receptacle supported by a base, the receptacle being suitable for receiving water from a user and suitable for containing tea leaves, an actuatable valve having open and closed positions flowably connected to said receptacle; and a timer mechanism which sets the acuatable valve into the open position after a predetermined period set by the user, thereby allowing brewed tea to flow from the receptacle into a tea vessel. The invention further comprises a tea maker which has an agitation assembly which enhances the flavor and health benefits of the tea.

Abstract: A tea maker, having a receptacle supported by a base, the receptacle being suitable for receiving water from a user and suitable for containing tea leaves, an actuatable valve having open and closed positions flowably connected to said receptacle; and a timer mechanism which sets the acuatable valve into the open position after a predetermined period set by the user, thereby allowing brewed tea to flow from the receptacle into a tea vessel.

Abstract: A system and method for analyzing a computer program includes performing a static analysis on a program to determine property correctness. Test cases are generated and conducted to provide test output data. Hypotheses about aspects of execution of the program are produced to classify paths for test cases to determine whether the test cases have been encountered or otherwise. In accordance with the hypothesis, new test cases are generated to cause the program to exercise behavior which is outside of the encountered test cases.

Abstract: A transmission device for a band saw includes mainly a transmission, which, connected axially with a motor, consists of a driving gear set, a driven gear set, an output gear set and a gear rod. The gear rod is connected with a gearing jaw engaged with the output gear set inside the transmission and having a pushing device able to push the output gear set forward or backward to engage with the driven gear set to rotate in different speeds. And, combined with a driving mechanism, various speeds can therefore be selected for the sawing band to work, depending on the properties of the material to be sawed, upgrading sawing quality and efficiency.

Abstract: An electric heat sealer for sealing workpieces such as plastic bags or the like includes a casing defining a battery chamber, a press bar pivotally connected to the casing, a sealing mechanism supported on a compression spring in a spring holder inside the casing, and a safety device. The sealing mechanism is electrically connected to produce heat for sealing the workpiece being put thereon when the press bar pressed against the sealing mechanism. The safety device breaks the electrical circuit when the apparatus is not in use.

Abstract: A detachable heat sealing apparatus includes a size-adjustable unitary externally-attached electric heating device and a power supplier, wherein the electric heating device is coupled to the external front side of a power supplier holding casing by means of a detachable coupling arrangement such that the electric heating device or the power supplier can be replaced when damaged or, a different model of electric heating device can be fastened to the casing to substitute the original electric heating device.

Abstract: A hand-held electric sealer used for sealing a plastic bag or the like, including a casing, a sealing mechanism, a press bar, and a safety device. The sealing mechanism has a heating wire, which produces heat for sealing the plastic bag or the like when turned on. The safety device controls the heating of the sealing mechanism, and stops the sealing mechanism from being triggered accidentally.

Abstract: A combination of a power supply and a detachable electric implement is constructed to include a housing holding a power pack, a first coupling device fixedly located on the housing, an electric implement, which can be an electric sealing apparatus, electric fan, flash light, or any of a variety of small handheld electric apparatuses, and a second coupling device fixedly located on the electric implement for fastening to the first coupling device to secure the electric implement to the housing for enabling the electric implement to obtain the necessary working electric power from the power pack.

Abstract: A programmable logic device includes configurable phase-locked loop (PLL) circuitry that outputs multiple clock signals having programmable phases and frequencies. Each output signal is programmably selectable for use as an external clock, internal global clock, internal local clock, or combinations thereof. The PLL circuitry has programmable frequency dividing, including programmable cascaded frequency dividing, and programmable output signal multiplexing that provide a high degree of clock design flexibility.

Abstract: A chisel quickly adjusting and positioning device for a chiseling machine includes a plurality of separating members for adjusting a gap between a sleeve and the bottom of a machine body, and a chisel unit composed of a chisel and a drill fitting lengthwise in the chisel. After the drill is fitted in the chisel and then clamped in a drill chuck, the chisel unit is fitted in the sleeve. Then the separating members can be pivotally moved in or out of the gap between the sleeve and the bottom of the machine body, and then the sleeve is pushed up so that a gap between the chisel blade and the tip of the drill may be formed for quickly adjusting and positioning the chisel unit with the machine body.

Abstract: A chisel quickly adjusting and positioning device for a chiseling machine includes a plurality of separating members for adjusting a gap between a sleeve and the bottom of a machine body, and a chisel unit composed of a chisel and a drill fitting lengthwise in the chisel. After the drill is fitted in the chisel and then clamped in a drill chuck, the chisel unit is fitted in the sleeve. Then the separating members can be pivotally moved in or out of the gap between the sleeve and the bottom of the machine body, and then the sleeve is pushed up so that a gap between the chisel blade and the tip of the drill may be formed for quickly adjusting and positioning the chisel unit with the machine body.

Abstract: The quickly-detachable protective cover unit of a table sawing machine includes a protective cover, a non-return plate, a protective plate, a combining plate and an extending plate. The extending plate positioned at one side of the saw blade of a table sawing machine has its inner end fixed with a quickly-detachable handle unit for positioning the combining plate thereon. The protective plate is inserted through the saw blade and the combining plate, positioned on the table-sawing machine. The non-return plate and the protective cover are respectively provided with a quickly detachable device to fit in the positioning hole of the combining plate. The components of the quickly detachable protective cover unit are combined by quickly detachable mechanism so they can be disassembled or assembled quickly, needing no tool for carrying out disassembling work.

Abstract: The quickly-detachable protective cover unit of a table sawing machine includes a protective cover, a non-return plate, a protective plate, a combining plate and an extending plate. The extending plate positioned at one side of the saw blade of a table sawing machine has its inner end fixed with a quickly-detachable handle unit for positioning the combining plate thereon. The protective plate is inserted through the saw blade and the combining plate, positioned on the table-sawing machine. The non-return plate and the protective cover are respectively provided with a quickly detachable device to fit in the positioning hole of the combining plate. The components of the quickly detachable protective cover unit are combined by quickly detachable mechanism so they can be disassembled or assembled quickly, needing no tool for carrying out disassembling work.

Abstract: The invention in one embodiment is an apparatus. The apparatus includes a lookup table having a set of entries, each entry capable of maintaining a value. The apparatus also includes a DDA (Differential Digital Analyzer) table having a set of entries, each entry capable of maintaining a value and each entry of the DDA table corresponding to an entry of the lookup table. The apparatus further includes a first multiplexing unit having a set of inputs, each input corresponding to and coupled to an entry of the DDA table. The first multiplexing unit also having a control input, the control input causing the first multiplexing unit to route one of the inputs of the set of inputs to an output. Additionally, the apparatus includes a comparison block having logic suitable for comparing each entry of the lookup table to a comparison value.