Transformer coupled switching regulator

Claim 2

In a switching regulator of the type having: a pair of input terminals adapted for connection to a source of unregulated voltage; a pair of output terminals adapted for connection to a load; and a switching means connected to one input terminal and a control means responsive to the voltage across the load for controlling the conduction of the switching means, the circuit comprising: a transformer having a primary and a secondary winding, one end of said primary winding being connected to said switching means and the other end thereof being connected to the other input terminal; rectifying means connected in circuit with one end of said secondary winding; inductive energy storage means connected between said rectifying means and one of said output terminals; and a diode connected between the other end of said secondary winding and said one output terminal for transferring energy from the secondary winding to the load at certain times.

Claim 3

The circuit according to claim 1 wherein said rectifying means comprises a second diode having two electrodes, one electrode thereof being connected to said one end of the secondary winding, the other electrode thereof being connected to said inductive energy storage means.

Claim 4

The circuit according to claim 2 further comprising a flyback diode having two electrodes, one electrode thereof being connected to the other electrode of said diode and the other electrode of said flyback diode being connected to the other output terminal and to a point between the ends of the secondary winding.

Claim 5

The circuit according to claim 3 further comprising a capacitor connected across said pair of output terminals.

Claim 6

In a switching voltage regulator of the type having: a pair of input terminals adapted for connection to a source of unregulated voltage; a pair of output terminals adapted for connection to a load to be supplied with a regulated voltage; a switching means connected to one input terminal and having a conducting and a non-conducting state; and a control means connected between said switching means and one of said output terminals, said control means being responsive to the voltage across said load for controlling the state of conduction of said switching means, the circuit comprising: a transformer having a primary and a secondary winding, one end of said primary winding being connected to said switching means and the other end thereof being connected to the other input terminal; a first diode having two electrodes, one electrode thereof being connected to one end of said secondary winding; an inductive energy storage means connected between the other electrode of the first diode and one of said output terminals; a second diode having two electrodes, one electrode of said second diode being connected to the other end of said secondary winding and the other electrode of said second diode being connected to said one output terminal, said second diode being rendered conductive when said switching means exhibits a state of non-conduction; and a third diode having two electrodes, one electrode thereof being connected to the other electrode of said first diode, the other electrode of said third diode being connected to the other output terminal and to a point between the ends of said secondary winding.

Claim 7

In a switching voltage regulator of the type having: a pair of input terminals adapted for connection to a source of unregulated voltage; a pair of output terminals adapted for connection to a load to be supplied with a regulated voltage; a switching means connected to one input terminal and having a conducting and a non-conducting state; and a control means connected between said switching means and one of said output terminals, said control means being responsive to the voltage across said load for controlling the state of conduction of said switching means, the circuit comprising: a transformer having a primary and a secondary winding, one end of said primary winding being connected to said switching means and the other end thereof being connected to the other input terminal; a first diode having two electrodes, one electrode thereof being connected to one end of said secondary winding; an inductive energy storage means connected between the other electrode of the first diode and one of said output terminals; a second diode having two electrodes, one electrode of said second diode being connected to the other end of said secondary winding and the other electrode of said second diode being connected to said one output terminal, said second diode being rendered conductive when said switching means exhibits a state of non-conduction; and a third diode having two electrodes, one electrode thereof being connected to the other electrode of said first diode, the other electrode of said third diode being connected to the other output terminal and to a point between the ends of said secondary winding.

Claim 8

The circuit according to claim 5 further comprising a capacitor connected across said pair of output terminals.

Claim 9

In a switching voltage regulator of the type having: a pair of input terminals adapted for connection to a source of unregulated voltage; a pair of output terminals adapted for connection to a load to be supplied with a regulated voltage; a switching means connected to one input terminal and having a conducting and a nonconducting state; and a control means connected between said switching means and one of said regulator output terminals, said control means being responsive to the voltage across said load for controlling the state of conduction of said switching means, the circuit comprising: a transformer having a primary and a secondary winding, one end of said primary winding being connected to said switChing means and the other end thereof being connected to the other input terminal; a full wave bridge rectifier circuit having a pair of input terminals and a pair of output terminals, one bridge input terminal being connected to one end of the secondary winding, the other bridge input terminal being connected to the other end of the secondary winding, one of the bridge output terminals being connected to one of the regulator output terminals; an inductive energy storage means connected between the other bridge output terminal and the other regulator output terminal; and a diode having two main electrodes, one main electrode thereof being connected to the other end of the secondary winding, the other main electrode of said diode being connected to the other regulator output terminal, said diode being rendered conductive when said switching means is rendered non-conductive for transferring energy stored in the secondary winding to said load.

Claim 10

In a switching voltage regulator of the type having: a pair of input terminals adapted for connection to a source of unregulated voltage; a pair of output terminals adapted for connection to a load to be supplied with a regulated voltage; a switching means connected to one input terminal and having a conducting and a nonconducting state; and a control means connected between said switching means and one of said regulator output terminals, said control means being responsive to the voltage across said load for controlling the state of conduction of said switching means, the circuit comprising: a transformer having a primary and a secondary winding, one end of said primary winding being connected to said switChing means and the other end thereof being connected to the other input terminal; a full wave bridge rectifier circuit having a pair of input terminals and a pair of output terminals, one bridge input terminal being connected to one end of the secondary winding, the other bridge input terminal being connected to the other end of the secondary winding, one of the bridge output terminals being connected to one of the regulator output terminals; an inductive energy storage means connected between the other bridge output terminal and the other regulator output terminal; and a diode having two main electrodes, one main electrode thereof being connected to the other end of the secondary winding, the other main electrode of said diode being connected to the other regulator output terminal, said diode being rendered conductive when said switching means is rendered non-conductive for transferring energy stored in the secondary winding to said load.

Claim 11

The circuit according to claim 7 further comprising a capacitor connected across said pair of output terminals.