Linear power suppliers, DC-DC converters

With today's requirements for miniaturization and high efficiency in mind, the author describes the most up-to-date power supply systems. Part A describes, from a practical point of view, regulated linear and unregulated DC-DC converter power supplies providing stabilized output voltages. With the spread of alternative battery-powered appliances, the latter power supplies are steadily gaining in importance. This part also contains a detailed glossary of technical terms. To facilitate the use of catalogue data sheets, the internationally accepted terms, definitions and typical parameters are listed, and the technical parameters to be specified are summarized. Part B describes the latest special power supplies: the switched-mode power supplies and regulated DC-DC converters to be operated from a power line or battery. In view of the pressure for miniaturization, their small masses and volumes as well as their high efficiency and energy-storage capacity make them superior to conventional arrangements. These recent circuit versions, which today operate even at 200 kHz, comply with the requirements of the present energy-saving era and are beginning to find a market.

- Part A: I. Fundamentals of Power Supply Technology. General information on DC power supplies. Quantities and parameters typical of power supplies. Technical characteristics to be specified, type selection. II. Regulated Linear Power Supplies. Comparison of the characteristics of IC and discrete voltage regulators. Voltage regulators of IC design. Types of IC voltage regulators and their applications. Ways of optimizing voltage regulators. III. Unregulated DC-DC Converter Power Supplies. General points for DC-DC converter power supplies. Basic circuit arrangements of DC-DC converters and guidelines for design. Actual examples of circuitry. Bibliography and recommended further reading. Contents - Part B: I. Fundamentals. Switched-mode power supplies. Design of switched-model power supplies. II. Energy-Transfer Circuits. Circuits with outputs not isolated from inputs. Circuits with outputs isolated from the inputs. Selection of the optimum type of circuit. Guidance for the selection of components. III. Regulation and Protection Circuits. Design details of regulation and protection circuits. Typical types of integrated regulation and protection circuits. IV. Interference Suppression. Interference generated by switched-mode power supplies. Interference reduction. Interference voltages entering the power supplies from the power line. V. Practical Circuit Arrangements. Stabilized power supplies with operational frequencies of 20 kHz to 50 kHz. Power supplies of 100 kHz to 200 kHz operational frequencies. Bibliography and recommended further reading.