초록

A razor includes a load and a voltage conversion system coupled to a voltage source and the load for transforming a variable voltage provided by the voltage source into a constant operating voltage for driving a load.

대표청구항 ▼

What is claimed is: 1. A powered wet razor comprising: a usage indicator configured to provide a usage signal indicative of the use of a cartridge wherein the usage indicator further comprises a timer configured to provide data indicative of a time interval during which a motor is in a selected sta

What is claimed is: 1. A powered wet razor comprising: a usage indicator configured to provide a usage signal indicative of the use of a cartridge wherein the usage indicator further comprises a timer configured to provide data indicative of a time interval during which a motor is in a selected state; a cartridge detector configured to provide a reset signal in response to attachment of a cartridge to the razor; and a counter in communication with the usage indicator, the counter being configured to reset a count in response to a reset signal and to change the count in response to the usage signal. 2. The razor of claim 1, wherein the usage indicator comprises an actuator switch for providing the counter with data indicative of a change in a state of a motor. 3. The razor of claim 1, wherein the usage indicator comprises a stroke detector for providing the counter with data indicative of an occurrence of contact between the cartridge and a surface. 4. The razor of claim 1, wherein the usage indicator comprises: a stroke detector for providing stroke data indicative of an occurrence of contact between the cartridge and a surface; and a timer in communication with the stroke detector and with the counter for providing the counter with data indicative of a temporal extent of the contact. 5. A powered wet razor comprising: a usage indicator configured to provide a usage signal indicative of the use of a cartridge, the usage indicator comprising an actuator switch for providing data indicative of a change in a state of a motor; and a counter in communication with the usage indicator, the counter being configured to reset a count in response to a reset signal and to change the count in response to the usage signal. 6. The razor of claim 5, further comprising a cartridge detector configured to provide a reset signal in response to attachment of a cartridge to the razor. 7. The razor of claim 5, wherein the usage indicator further comprises a time for providing the counter with data indicative of a time interval during which a motor is in a selected state. 8. The razor of claim 5, wherein the usage indicator comprises a stroke detector for providing the counter with data indicative of an occurrence of contact between the cartridge and a surface. 9. The razor of claim 5, wherein the usage indicator comprises: a stroke detector for providing stroke data indicative of an occurrence of contact between the cartridge and a surface; and a timer in communication with the stroke detector and with the counter for providing the counter with data indicative of a temporal extent of the contact.