Highly stable dc power supplies

Highly stable (± 3 · 10-5 - 10-3) direct-current power supplies intended predominantly for cyclotron-type accelerators are discussed. All power supplies considered are based on the circuit of the compensated dc stabilizer. Versions of silicon-controlled rectifiers, filters, transducers, and other basic units of the power supplies in question are proposed. Block diagrams of the units discussed are presented. Recommendations of using the units for making power supplies with the necessary characteristics for any particular case are given. Block diagrams of power supplies with several different combinations of their main parameters are presented. (author)