1-20 of 172 Search Results for

power supply circuit

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 June 1988
Fig. 4.27 Remote tank circuit for use with an RF power supply, including work coil, output transformer, and tank capacitors Source: Lindberg Cycle-Dyne, Inc. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220027
EISBN: 978-1-62708-341-6
... Abstract This chapter focuses on the transfer of energy between the power supply and the induction heating coil. The most efficient transfer requires that the induction heated load and coil be matched to the power supply and that the electrical circuit containing these elements be properly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220047
EISBN: 978-1-62708-341-6
... of, and I 2 R losses in, the appropriate tank circuit, imperfect impedance matching between the power supply and the workpiece/induction coil, and transmission losses between the power supply and the induction coil. Power losses within the power supply due to conversion of line frequency to higher...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050025
EISBN: 978-1-62708-311-9
... reliable, and more controllable due to magnetic components such as transformers, chokes, and reactors that reduce physical size and improve efficiency. There are two types of direct current power supplies: rectification (ac/dc) and conversion of direct current (dc/dc). Internal circuits convert the dc...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220077
EISBN: 978-1-62708-341-6
... Saver Systems, Inc. Timers Control of induction heating systems can be on an open-loop or a closed-loop basis. Closed-loop systems make use of a control signal (most often temperature) in a feedback circuit to regulate the operation of the induction power supply. The control signal is compared...
Image
Published: 01 December 2015
Fig. 3 Schematic of an anodic protection system. One or more cathodes, a reference electrode, a potential sensing and controlling circuit, and a dc power supply are required for each anodic protection system. The vessel wall is made the anode of the circuit by current forced between More
Image
Published: 01 June 1988
Fig. 4.28 Multitapped feedback transformer that provides adjustable grid drive when the tank circuit is located remote from the power supply Source: Lindberg Cycle-Dyne, Inc. More
Image
Published: 01 June 1988
Fig. 5.5 Circuit schematic for a grid-trigger system used for high-speed operation of an RF power supply. From J. Davies and P. Simpson, Induction Heating Handbook , McGraw-Hill, Ltd., London, 1979 ( Ref 2 ) More
Image
Published: 01 November 2019
Fig. 5 (a) Amplitude image, (b) phase image,(c) 0°/-90° image from the region indicated in (b), and (d) power distribution, numerically deconvoluted from (c), of a hall sensor circuit; supply voltage pulsed with 22 Hz. More
Image
Published: 01 June 1988
Fig. 3.8 Schematic illustration of a capacitor bank used in tuning induction heating circuits for low- and medium-frequency induction heating power supplies. From C. A. Tudbury, Basics of Induction Heating , Vol 2, John F. Rider, Inc., New York, 1960 ( Ref 2 ) More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110613
EISBN: 978-1-62708-247-1
... on the boundary of the saturated and non-saturated states, therefore Eq. (1) or (2) may be used. Analysis of a Complete Circuit Transistors don’t operate in isolation. They require a power supply (V DD ), ground (V SS ), an input signal, and a load. The load can be a resistor ( Fig. 5 ) or another...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110634
EISBN: 978-1-62708-247-1
..., the circuit undergoes the stress voltage and temperature, and then is re-tested afterward. Burn-in is expensive both because it is an extra test step and because there are significant costs associated with supplying the power necessary to operate the chip at elevated voltage and temperature. Some circuits...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220009
EISBN: 978-1-62708-341-6
... which underlie induction heating are best understood with reference to the interactions between the coil and the workpiece; the role of the power supply in this case is taken into account only in terms of the frequency and magnitude of the ac current which it supplies to the coil. By this means...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910407
EISBN: 978-1-62708-250-1
... utilizes a power supply and a buried anode in the soil to make the cathodic protection circuit. Current is forced to flow from the buried anode to the buried steel structure by the power supply. In practice, the current capacity of the power supply and the size and distribution of the cathodic protection...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780035
EISBN: 978-1-62708-268-6
... on the third tier (no power from the switch wiring and no path to ground). The “No electrical energy from switch line” portion of the fault tree is developed first. The “No return path to power supply” fault-tree branch is developed later. Note that when the “No electrical energy from switch line” portion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050001
EISBN: 978-1-62708-311-9
... to melt metals. Induction heat treating came into prominence in the 1930s, when high-frequency motor-generator sets were developed and used for the induction hardening of crankshaft journals and bearings. In 1938, Caterpillar installed a power supply for induction hardening track links, and by 1943...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290023
EISBN: 978-1-62708-306-5
... the combustion and decomposition of the electrode covering. Additional shielding is provided for the molten metal in the weld pool by a covering of molten flux or slag. Filler metal is supplied by the core of the consumable electrode and from metal power mixed with the electrode coverings of certain electrodes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030180
EISBN: 978-1-62708-282-2
..., the various items used for each component of the system are briefly described. Fig. 3 Schematic of an anodic protection system. One or more cathodes, a reference electrode, a potential sensing and controlling circuit, and a dc power supply are required for each anodic protection system. The vessel wall...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110180
EISBN: 978-1-62708-247-1
... signal intensity on supply voltage is problematic with low power technologies, but a shift of the detected spectrum further into the IR may solve this problem. Fundamental Mechanism Electronic Material Properties and Light Emission Electronic devices can emit light correlated to electronic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050263
EISBN: 978-1-62708-311-9
... limit circuits for protection. A limit circuit may limit the frequency of output but not cause a fault that trips the unit. It is not recommended that a power supply operate in a limit condition because, although the power supply may not be damaged, the output power might not be consistent. A change...